\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n Sinh n\u0103m 2016 t\u1ed5 ch\u1ee9c thi l\u1ea7n th\u1ee9 9 bao g\u1ed3m 50 c\u00e2u h\u1ecfi v\u00e0 c\u00f3 \u0111\u00e1p \u00e1n h\u01b0\u1edbng d\u1eabn tr\u1ea3 l\u1eddi b\u00ean d\u01b0\u1edbi<\/strong><\/h2>\n

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Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n Sinh<\/p>\n<\/div>\n

C\u00e2u 1:<\/strong>(ID: 99623)<\/strong>C\u1ea5u tr\u00fac di truy\u1ec1n c\u1ee7a QT nh\u01b0 sau: 0,3AaBB:0,4AaBb:0,3aabb . Cho qu\u1ea7n th\u1ec3 t\u1ef1 th\u1ee5 qua ba th\u1ebf h\u1ec7 t\u1ef7 l\u1ec7 c\u01a1 th\u1ec3 mang 2 c\u1eb7p gen \u0111\u1ed3ng h\u1ee3p tr\u1ed9i l\u00e0:<\/p>\n

A.<\/strong>161\/640        B.<\/strong>7\/640        C.<\/strong>112\/640        D.<\/strong>133\/640<\/p>\n

C\u00e2u 2:<\/strong>(ID: 99624)<\/strong>\u1ede ru\u1ed3i gi\u1ea5m, gi\u1ea3 s\u1eed c\u1eb7p gen th\u1ee9 nh\u1ea5t g\u1ed3m 2 alen A, a n\u1eb1m tr\u00ean nhi\u1ec5m s\u1eafc th\u1ec3 s\u1ed1 1, c\u1eb7p gen th\u1ee9 hai g\u1ed3m 2 alen B, b v\u00e0 v\u00e0 c\u1eb7p gen th\u1ee9 ba g\u1ed3m 2 alen D, d c\u00f9ng n\u1eb1m tr\u00ean nhi\u1ec5m s\u1eafc th\u1ec3 s\u1ed1 2 v\u00e0 c\u00e1ch nhau 40cM, c\u1eb7p gen th\u1ee9 t\u01b0 g\u1ed3m 2 alen E, e n\u1eb1m tr\u00ean c\u1eb7p nhi\u1ec5m s\u1eafc th\u1ec3 gi\u1edbi t\u00ednh. N\u1ebfu m\u1ed7i gen qui \u0111\u1ecbnh m\u1ed9t t\u00ednh tr\u1ea1ng v\u00e0 t\u00ednh tr\u1ea1ng tr\u1ed9i l\u00e0 tr\u1ed9i ho\u00e0n to\u00e0n, n\u1ebfu lai gi\u1eefa c\u1eb7p b\u1ed1 m\u1eb9 (P):  th\u00ec \u1edf \u0111\u1eddi con, ki\u1ec3u h\u00ecnh g\u1ed3m 3 t\u00ednh tr\u1ea1ng tr\u1ed9i v\u00e0 1 t\u00ednh tr\u1ea1ng l\u1eb7n chi\u1ebfm t\u1ec9 l\u1ec7 l\u00e0:<\/p>\n

A.<\/strong>32,5%.        B.<\/strong>25%.         C.<\/strong>37,5%.        D.<\/strong>6,25%.<\/p>\n

C\u00e2u 3:<\/strong>(ID: 99626)<\/strong>Cho c\u00e1c v\u00ed d\u1ee5 v\u1ec1 qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh lo\u00e0i nh\u01b0 sau: <\/p>\n

(1) M\u1ed9t qu\u1ea7n th\u1ec3 chim s\u1ebb s\u1ed1ng \u1edf \u0111\u1ea5t li\u1ec1n v\u00e0 v\u00e0 m\u1ed9t qu\u1ea7n th\u1ec3 chim s\u1ebb s\u1ed1ng \u1edf qu\u1ea7n \u0111\u1ea3o Galapagos,<\/p>\n

(2) M\u1ed9t qu\u1ea7n th\u1ec3 mao l\u01b0\u01a1ng s\u1ed1ng \u1edf b\u00e3i b\u1ed3i s\u00f4ng V\u00f4nga v\u00e0 v\u00e0 m\u1ed9t qu\u1ea7n th\u1ec3 mao l\u01b0\u01a1ng s\u1ed1ng \u1edf ph\u00eda trong b\u1edd s\u00f4ng, (3) Hai qu\u1ea7n th\u1ec3 c\u00e1 c\u00f3 h\u00ecnh th\u00e1i gi\u1ed1ng nhau nh\u01b0ng kh\u00e1c nhau v\u1ec1 m\u00e0u s\u1eafc: m\u1ed9t qu\u1ea7n th\u1ec3 c\u00f3 m\u00e0u \u0111\u1ecf v\u00e0 m\u1ed9t qu\u1ea7n th\u1ec3 c\u00f3 m\u00e0u x\u00e1m s\u1ed1ng chung \u1edf m\u1ed9t h\u1ed3 Ch\u00e2u phi,<\/p>\n

 (4) Chim s\u1ebb ng\u00f4 (Parus major) c\u00f3 v\u00f9ng ph\u00e2n b\u1ed1 r\u1ed9ng tr\u00ean kh\u1eafp ch\u00e2u \u00c2u v\u00e0 ch\u00e2u \u00c1 ph\u00e2n h\u00f3a th\u00e0nh 3 n\u00f2i: n\u00f2i ch\u00e2u \u00c2u, n\u00f2i Trung Qu\u1ed1c v\u00e0 n\u00f2i \u1ea4n \u0111\u1ed9.<\/p>\n

 C\u00e1c qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh lo\u00e0i c\u00f3 s\u1ef1 tham gia c\u1ee7a c\u01a1 ch\u1ebf c\u00e1ch li \u0111\u1ecba l\u00fd l\u00e0:<\/p>\n

A.<\/strong>1, 4.          B.<\/strong>1, 2, 3, 4.      C.<\/strong>1, 2, 4.        D.<\/strong>1, 3.<\/p>\n

C\u00e2u 4:<\/strong>(ID: 99627)<\/strong>V\u00ed d\u1ee5 n\u00e0o sau \u0111\u00e2ykh\u00f4ng<\/strong>di\u1ec5n t\u1ea3 s\u1ef1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a gi\u1edbi t\u00ednh \u0111\u1ebfn s\u1ef1 bi\u1ec3u hi\u1ec7n ki\u1ec3u h\u00ecnh.<\/p>\n

A.<\/strong>\u1ede ru\u1ed3i gi\u1ea5m, ho\u00e1n v\u1ecb gen ch\u1ec9 x\u1ea3y ra \u1edf ru\u1ed3i c\u00e1i.<\/p>\n

B.<\/strong>Ki\u1ec3u gen d\u1ecb h\u1ee3p v\u1ec1 t\u00ednh tr\u1ea1ng s\u1eebng bi\u1ec3u hi\u1ec7n s\u1ef1 c\u00f3 s\u1eebng \u1edf con \u0111\u1ef1c<\/p>\n

C.<\/strong>Ki\u1ec3u gen d\u1ecb h\u1ee3p v\u1ec1 t\u00ednh tr\u1ea1ng h\u00f3i \u0111\u1ea7u ch\u1ec9 bi\u1ec3u hi\u1ec7n \u1edf 1 gi\u1edbi.<\/p>\n

D.<\/strong>Ki\u1ec3u gen d\u1ecb h\u1ee3p v\u1ec1 t\u00ednh tr\u1ea1ng r\u00e2u x\u1ed3m kh\u00f4ng bi\u1ec3u hi\u1ec7n \u1edf d\u00ea c\u00e1i.<\/p>\n

C\u00e2u 5:<\/strong>(ID: 99628)<\/strong>\u1ede m\u1ed9t t\u1ebf b\u00e0o, x\u00e9t 1 c\u1eb7p nhi\u1ec5m s\u1eafc th\u1ec3 t\u01b0\u01a1ng \u0111\u1ed3ng. N\u1ebfu cho r\u1eb1ng trong m\u1ed7i nhi\u1ec5m s\u1eafc th\u1ec3, t\u1ed5ng chi\u1ec1u d\u00e0i c\u00e1c \u0111o\u1ea1n ADN qu\u1ea5n quanh c\u00e1c kh\u1ed1i c\u1ea5u histon \u0111\u1ec3 t\u1ea1o n\u00ean c\u00e1c nucl\u00ea\u00f4x\u00f4m l\u00e0 126582 A<\/p>\n

0<\/dd>\n

. Khi t\u1ebf b\u00e0o n\u00e0y \u1edf k\u00ec sau c\u1ee7a nguy\u00ean ph\u00e2n, t\u1ed5ng s\u1ed1 c\u00e1c ph\u00e2n t\u1eed pr\u00f4t\u00eain histon trong c\u00e1c nucl\u00ea\u00f4x\u00f4m c\u1ee7a c\u1eb7p nhi\u1ec5m s\u1eafc th\u1ec3 n\u00e0y l\u00e0:<\/p>\n

A.<\/strong>4080 ph\u00e2n t\u1eed.    B.<\/strong>2040 ph\u00e2n t\u1eed.    C.<\/strong>1600 ph\u00e2n t\u1eed.    D.<\/strong>8160 ph\u00e2n t\u1eed..<\/em><\/p>\n

C\u00e2u 6:<\/strong>(ID: 99630)<\/strong>L\u01b0\u1edbi th\u1ee9c \u0103n c\u1ee7a m\u1ed9t qu\u1ea7n x\u00e3 sinh v\u1eadt tr\u00ean c\u1ea1n \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 nh\u01b0 sau:<\/p>\n

C\u00e1c lo\u00e0i c\u00e2y l\u00e0 th\u1ee9c \u0103n c\u1ee7a s\u00e2u \u0111\u1ee5c th\u00e2n, s\u00e2u h\u1ea1i qu\u1ea3, chim \u0103n h\u1ea1t, c\u00f4n tr\u00f9ng c\u00e1nh c\u1ee9ng \u0103n v\u1ecf c\u00e2y v\u00e0 m\u1ed9t s\u1ed1 lo\u00e0i \u0111\u1ed9ng v\u1eadt \u0103n r\u1ec5 c\u00e2y. Chim s\u00e2u \u0103n c\u00f4n tr\u00f9ng c\u00e1nh c\u1ee9ng, s\u00e2u \u0111\u1ee5c th\u00e2n v\u00e0 s\u00e2u h\u1ea1i qu\u1ea3. Chim s\u00e2u v\u00e0 chim \u0103n h\u1ea1t \u0111\u1ec1u l\u00e0 th\u1ee9c \u0103n c\u1ee7a chim \u0103n th\u1ecbt c\u1ee1 l\u1edbn. \u0110\u1ed9ng v\u1eadt \u0103n r\u1ec5 c\u00e2y l\u00e0 th\u1ee9c \u0103n c\u1ee7a r\u1eafn, th\u00fa \u0103n th\u1ecbt v\u00e0 chim \u0103n th\u1ecbt c\u1ee1 l\u1edbn.<\/p>\n

Ph\u00e2n t\u00edch l\u01b0\u1edbi th\u1ee9c \u0103n tr\u00ean cho th\u1ea5y:<\/p>\n

A.<\/strong>N\u1ebfu s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ed9ng v\u1eadt \u0103n r\u1ec5 c\u00e2y b\u1ecb gi\u1ea3m m\u1ea1nh th\u00ec s\u1ef1 c\u1ea1nh tranh gi\u1eefa chim \u0103n th\u1ecbt c\u1ee1 l\u1edbn v\u00e0 r\u1eafn<\/p>\n

gay g\u1eaft h\u01a1n so v\u1edbi s\u1ef1 c\u1ea1nh tranh gi\u1eefa r\u1eafn v\u00e0 th\u00fa \u0103n th\u1ecbt.<\/p>\n

B.<\/strong>C\u00e1c lo\u00e0i s\u00e2u \u0111\u1ee5c th\u00e2n, s\u00e2u h\u1ea1i qu\u1ea3, \u0111\u1ed9ng v\u1eadt \u0103n r\u1ec5 c\u00e2y v\u00e0 c\u00f4n tr\u00f9ng c\u00e1nh c\u1ee9ng c\u00f3 \u1ed5 sinh th\u00e1i tr\u00f9ng<\/p>\n

nhau ho\u00e0n to\u00e0n.<\/p>\n

C.<\/strong>Chu\u1ed7i th\u1ee9c \u0103n d\u00e0i nh\u1ea5t trong l\u01b0\u1edbi th\u1ee9c \u0103n n\u00e0y c\u00f3 t\u1ed1i \u0111a 4 m\u1eaft x\u00edch.<\/p>\n

D.<\/strong>Chim \u0103n th\u1ecbt c\u1ee1 l\u1edbn c\u00f3 th\u1ec3 l\u00e0 b\u1eadc dinh d\u01b0\u1ee1ng c\u1ea5p 2, c\u0169ng c\u00f3 th\u1ec3 l\u00e0 b\u1eadc dinh d\u01b0\u1ee1ng c\u1ea5p 3.<\/p>\n

C\u00e2u 7:<\/strong>(ID: 99631)<\/strong>\u1ede m\u1ed9t lo\u00e0i \u0111\u1ed9ng v\u1eadt, t\u00ednh tr\u1ea1ng m\u00e0u l\u00f4ng do gen n\u1eb1m tr\u00ean NST gi\u1edbi t\u00ednh X qui \u0111\u1ecbnh, t\u00ednh tr\u1ea1ng chi\u1ec1u cao do gen n\u1eb1m tr\u00ean NST th\u01b0\u1eddng qui \u0111\u1ecbnh, t\u00ednh tr\u1ea1ng m\u00e0u m\u1eaft do gen n\u1eb1m trong ti th\u1ec3 qui \u0111\u1ecbnh. Chuy\u1ec3n nh\u00e2n t\u1eeb t\u1ebf b\u00e0o c\u1ee7a m\u1ed9t con \u0111\u1ef1c c\u00f3 m\u00e0u l\u00f4ng v\u00e0ng, ch\u00e2n cao, m\u1eaft \u0111\u1ecf v\u00e0o t\u1ebf b\u00e0o tr\u1ee9ng m\u1ea5t nh\u00e2n c\u1ee7a c\u01a1 th\u1ec3 c\u00e1i l\u00f4ng \u0111\u1ecf, ch\u00e2n th\u1ea5p, m\u1eaft tr\u1eafng t\u1ea1o \u0111\u01b0\u1ee3c t\u1ebf b\u00e0o chuy\u1ec3n nh\u00e2n. T\u1ebf b\u00e0o n\u00e0y c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n th\u00e0nh c\u01a1 th\u1ec3 mang ki\u1ec3u h\u00ecnh l\u00e0<\/p>\n

A.<\/strong>c\u00e1i, l\u00f4ng v\u00e0ng, ch\u00e2n cao, m\u1eaft tr\u1eafng.       B.<\/strong>\u0111\u1ef1c, l\u00f4ng v\u00e0ng, ch\u00e2n cao, m\u1eaft tr\u1eafng.<\/p>\n

C.<\/strong>\u0111\u1ef1c, l\u00f4ng v\u00e0ng, ch\u00e2n th\u1ea5p, m\u1eaft tr\u1eafng.      D.<\/strong>\u0111\u1ef1c, l\u00f4ng v\u00e0ng, ch\u00e2n cao, m\u1eaft \u0111\u1ecf.<\/p>\n

C\u00e2u 8:<\/strong>(ID: 99632)<\/strong>\u1ede \u0111\u1eadu H\u00e0 Lan, t\u00ednh tr\u1ea1ng hoa \u0111\u1ecf l\u00e0 do gen A qui \u0111\u1ecbnh tr\u1ed9i ho\u00e0n to\u00e0n so v\u1edbi gen a qui \u0111\u1ecbnh hoa tr\u1eafng, gen quy \u0111\u1ecbnh t\u00ednh tr\u1ea1ng n\u1eb1m tr\u00ean NST th\u01b0\u1eddng. Cho 2 c\u00e2y c\u00f3 ki\u1ec3u h\u00ecnh kh\u00e1c nhau giao ph\u1ea5n v\u1edbi nhau \u0111\u01b0\u1ee3c F<\/p>\n

1<\/dd>\n

, sau \u0111\u00f3 cho c\u00e1c c\u00e2y F<\/p>\n

1<\/dd>\n

ng\u1eabu ph\u1ed1i li\u00ean ti\u1ebfp \u0111\u1ebfn F<\/p>\n

4<\/dd>\n

thu \u0111\u01b0\u1ee3c 180 c\u00e2y hoa tr\u1eafng v\u00e0 140 c\u00e2y hoa \u0111\u1ecf. Ch\u1ecdn ng\u1eabu nhi\u00ean m\u1ed9t c\u00e2y hoa \u0111\u1ecf \u1edf F<\/p>\n

4<\/dd>\n

cho t\u1ef1 th\u1ee5 ph\u1ea5n thu \u0111\u01b0\u1ee3c c\u00e1c qu\u1ea3. N\u1ebfu gi\u1ea3 s\u1eed m\u1ed7i qu\u1ea3 \u0111\u1ec1u ch\u1ee9a 3 h\u1ea1t th\u00ec x\u00e1c su\u1ea5t \u0111\u1ec3 c\u1ea3 3 h\u1ea1t trong c\u00f9ng m\u1ed9t qu\u1ea3 khi \u0111em gieo \u0111\u1ec1u m\u1ecdc th\u00e0nh c\u00e2y hoa \u0111\u1ecf l\u00e0:<\/p>\n

A.<\/strong>22,07%.        B.<\/strong>36,16%.        C.<\/strong>50,45%.        D.<\/strong>18,46%.<\/p>\n

C\u00e2u 9:<\/strong>(ID: 99633)<\/strong>Trong 1 qu\u1ea7n th\u1ec3 c\u00e2n b\u1eb1ng, x\u00e9t 2 c\u1eb7p gen AaBb n\u1eb1m tr\u00ean 2 c\u1eb7p NST th\u01b0\u1eddng kh\u00e1c nhau, t\u1ea7n s\u1ed1 c\u1ee7a alen A l\u00e0 0,4, c\u1ee7a B l\u00e0 0,6. T\u1ea7n s\u1ed1 m\u1ed7i lo\u1ea1i giao t\u1eed c\u1ee7a qu\u1ea7n th\u1ec3 n\u00e0y l\u00e0:<\/p>\n

A.<\/strong>AB = 0,24; Ab = 0,36 ; aB = 0,16; ab = 0,24      B.<\/strong>AB = 0,24; Ab = 0,16 ; aB = 0,36; ab = 0,24<\/p>\n

C.<\/strong>AB = 0,48; Ab = 0,32 ; aB = 0,72; ab = 0,48      D.<\/strong>AB = 0,48; Ab = 0,16; aB = 0,36; ab = 0,48<\/p>\n

C\u00e2u 10:<\/strong>(ID: 99634)<\/strong>Trong m\u1ed9t qu\u1ea7n th\u1ec3, x\u00e9t 5 gen: gen 1 c\u00f3 3 alen, gen 2 c\u00f3 3 alen, hai gen n\u00e0y c\u00f9ng n\u1eb1m tr\u00ean m\u1ed9t nhi\u1ec5m s\u1eafc th\u1ec3 th\u01b0\u1eddng, gen 3 v\u00e0 gen 4  l\u1ea7n l\u01b0\u1ee3t c\u00f3 3,4 alen, hai gen n\u00e0y c\u00f9ng n\u1eb1m tr\u00ean nhi\u1ec5m s\u1eafc th\u1ec3 gi\u1edbi t\u00ednh X kh\u00f4ng c\u00f3 \u0111o\u1ea1n t\u01b0\u01a1ng \u1ee9ng tr\u00ean Y, gen 5 c\u00f3 5 alen n\u1eb1m tr\u00ean nhi\u1ec5m s\u1eafc th\u1ec3 gi\u1edbi t\u00ednh Y kh\u00f4ng c\u00f3 alen tr\u00ean X. S\u1ed1 ki\u1ec3u gen t\u1ed1i \u0111a c\u00f3 th\u1ec3 c\u00f3 trong qu\u1ea7n th\u1ec3 tr\u00ean l\u00e0:<\/p>\n

A.<\/strong>2340         B.<\/strong>6210         C.<\/strong>1170         D.<\/strong>4680<\/p>\n

C\u00e2u 11:<\/strong>(ID: 99635)<\/strong>M\u1ed9t ng\u01b0\u1eddi b\u1ecb nhi\u1ec5m HIV \u0111\u00e3 \u0111\u1ec1u \u0111\u1eb7n \u0111i ti\u00eam thu\u1ed1c \u1ee9c ch\u1ebf gen phi\u00ean m\u00e3 ng\u01b0\u1ee3c \u0111\u00fang \u0111\u1ecbnh k\u1ef3. Gi\u1ea3 s\u1eed l\u00fac \u0111\u1ea7u, ch\u01b0a c\u00f3 virut n\u00e0o mang \u0111\u1ed9t bi\u1ebfn kh\u00e1ng thu\u1ed1c . H\u1ecfi sau1 th\u1eddi gian d\u00e0i, k\u1ebft lu\u1eadn n\u00e0o \u0111\u00fang?<\/p>\n

A.<\/strong>C\u00e1c virut xu\u1ea5t hi\u1ec7n  \u0111\u1ed9t bi\u1ebfn kh\u00e1ng thu\u1ed1c v\u00e0 ng\u01b0\u1eddi \u0111\u00f3 ng\u00e0y c\u00e0ng b\u1ec7nh n\u1eb7ng<\/p>\n

B.<\/strong>C\u00e1c virut kh\u00f4ng th\u1ec3 ti\u1ebfp t\u1ee5c s\u1ed1ng k\u00ed sinh v\u00e0 ph\u1ea3i thay \u0111\u1ed5i v\u1eadt ch\u1ee7<\/p>\n

C.<\/strong>Nh\u1eefng virut trong ng\u01b0\u1eddi b\u1ec7nh nh\u00e2n kh\u00f4ng sinh s\u1ea3n \u0111\u01b0\u1ee3c v\u00e0 b\u1ecb ti\u00eau di\u1ec7t b\u1edfi b\u1ea1ch c\u1ea7u<\/p>\n

D.<\/strong>Ng\u01b0\u1eddi \u0111\u00f3 s\u1ebd h\u1ebft b\u1ec7nh ho\u00e0n to\u00e0n<\/p>\n

C\u00e2u 12:<\/strong>(ID: 99636)<\/strong>Trong m\u00f4 \u0111ang ph\u00e2n chia nguy\u00ean ph\u00e2n, x\u00e9t hai nh\u00f3m t\u1ebf b\u00e0o trong \u0111\u00f3 h\u00e0m l\u01b0\u1ee3ng ADN trong m\u1ed7i t\u1ebf b\u00e0o thu\u1ed9c nh\u00f3m m\u1ed9t ch\u1ec9 b\u1eb1ng m\u1ed9t n\u1eeda h\u00e0m l\u01b0\u1ee3ng ADN trong m\u1ed7i t\u1ebf b\u00e0o thu\u1ed9c nh\u00f3m hai. T\u1ebf b\u00e0o thu\u1ed9c nh\u00f3m m\u1ed9t \u0111ang \u1edf X, t\u1ebf b\u00e0o thu\u1ed9c nh\u00f3m hai \u0111ang \u1edf Y. X v\u00e0 Y l\u1ea7n l\u01b0\u1ee3t l\u00e0:<\/p>\n

A.<\/strong>pha G<\/p>\n

2<\/dd>\n

v\u00e0 pha G<\/p>\n

1<\/dd>\n

   B.<\/strong>pha G<\/p>\n

1<\/dd>\n

v\u00e0 k\u00ec \u0111\u1ea7u    C.<\/strong>k\u00ec \u0111\u1ea7u v\u00e0 k\u00ec gi\u1eefa    D.<\/strong>pha G<\/p>\n

2<\/dd>\n

v\u00e0 k\u00ec \u0111\u1ea7u<\/p>\n

C\u00e2u 13:<\/strong>(ID: 99637)<\/strong>Khi n\u00f3i v\u1ec1 qu\u00e1 tr\u00ecnh d\u1ecbch m\u00e3 \u1edf sinh v\u1eadt nh\u00e2n th\u1ef1c, nh\u1eadn \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2ykh\u00f4ng<\/strong>\u0111\u00fang?<\/p>\n

A.<\/strong>C\u00e1c rib\u00f4x\u00f4m v\u00e0 tARN c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u l\u1ea7n, t\u1ed3n t\u1ea1i \u0111\u01b0\u1ee3c qua m\u1ed9t s\u1ed1 th\u1ebf h\u1ec7 t\u1ebf b\u00e0o v\u00e0 c\u00f3 kh\u1ea3<\/p>\n

n\u0103ng tham gia t\u1ed5ng h\u1ee3p b\u1ea5t c\u1ee9 lo\u1ea1i pr\u00f4t\u00eain n\u00e0o.<\/p>\n

B.<\/strong>Hi\u1ec7n t\u01b0\u1ee3ng p\u00f4lirib\u00f4x\u00f4m l\u00e0m t\u0103ng hi\u1ec7u su\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh d\u1ecbch m\u00e3 nh\u1edd s\u1ef1 t\u1ed5ng h\u1ee3p \u0111\u1ed3ng th\u1eddi c\u00e1c ph\u00e2n \u0111o\u1ea1n kh\u00e1c nhau c\u1ee7a c\u00f9ng m\u1ed9t chu\u1ed7i p\u00f4lipeptit, sau \u0111\u00f3 c\u00e1c \u0111o\u1ea1n \u0111\u01b0\u1ee3c n\u1ed1i l\u1ea1i \u0111\u1ec3 t\u1ea1o ra m\u1ed9t chu\u1ed7i p\u00f4lipeptit ho\u00e0n ch\u1ec9nh.<\/p>\n

C.<\/strong>Trong qu\u00e1 tr\u00ecnh d\u1ecbch m\u00e3, s\u1ef1 h\u00ecnh th\u00e0nh li\u00ean k\u1ebft peptit gi\u1eefa c\u00e1c axit amin k\u1ebf ti\u1ebfp nhau ph\u1ea3i di\u1ec5n ra tr\u01b0\u1edbc khi rib\u00f4x\u00f4m d\u1ecbch chuy\u1ec3n ti\u1ebfp m\u1ed9t b\u1ed9 ba tr\u00ean mARN tr\u01b0\u1edfng th\u00e0nh theo chi\u1ec1u 5\u2019 \u2013 3\u2019.<\/p>\n

D.<\/strong>Ph\u00e2n t\u1eed mARN l\u00e0m khu\u00f4n d\u1ecbch m\u00e3 th\u01b0\u1eddng c\u00f3 chi\u1ec1u d\u00e0i ng\u1eafn h\u01a1n chi\u1ec1u d\u00e0i c\u1ee7a gen t\u01b0\u01a1ng \u1ee9ng do hi\u1ec7n<\/p>\n

t\u01b0\u1ee3ng lo\u1ea1i b\u1ecf c\u00e1c \u0111o\u1ea1n intron ra kh\u1ecfi ph\u00e2n t\u1eed mARN s\u01a1 c\u1ea5p \u0111\u1ec3 t\u1ea1o n\u00ean ph\u00e2n t\u1eed mARN tr\u01b0\u1edfng th\u00e0nh.<\/p>\n

C\u00e2u 14:<\/strong>(ID: 99638)<\/strong>Nghi\u00ean c\u1ee9u kh\u1ea3 n\u0103ng l\u1ecdc n\u01b0\u1edbc c\u1ee7a m\u1ed9t lo\u00e0i \u0111\u1ed9ng v\u1eadt thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 nh\u01b0 sau:<\/p>\n\n\n\n\n

\n  S\u1ed1 l\u01b0\u1ee3ng con\/m<\/p>\n 3<\/dd>\n n\u01b0\u1edbc<\/p>\n<\/td>\n	\n 2<\/p>\n<\/td>\n	\n 6<\/p>\n<\/td>\n	\n 10<\/p>\n<\/td>\n	\n 14<\/p>\n<\/td>\n	\n 18<\/p>\n<\/td>\n<\/tr>\n
\n T\u1ed1c \u0111\u1ed9 l\u1ecdc n\u01b0\u1edbc (ml\/gi\u1edd)<\/p>\n<\/td>\n	\n 2,5<\/p>\n<\/td>\n	\n 5,7<\/p>\n<\/td>\n	\n 8,2<\/p>\n<\/td>\n	\n 6,4<\/p>\n<\/td>\n	\n 3,5<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n    K\u1ebft lu\u1eadn n\u00e0o sau \u0111\u00e2ykh\u00f4ng<\/strong>\u0111\u00fang?<\/p>\n A.<\/strong>\u1ede m\u1eadt \u0111\u1ed9 10 con\/m3, t\u1ed1c \u0111\u1ed9 l\u1ecdc n\u01b0\u1edbc l\u00e0 nhanh nh\u1ea5t.<\/p>\n B.<\/strong>T\u1ed1c \u0111\u1ed9 l\u1ecdc n\u01b0\u1edbc c\u1ee7a c\u00e1 th\u1ec3 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1eadt \u0111\u1ed9.<\/p>\n C.<\/strong>Hi\u1ec7u qu\u1ea3 l\u1ecdc n\u01b0\u1edbc t\u1ed1t nh\u1ea5t \u1edf m\u1eadt \u0111\u1ed9 10 con\/m<\/p>\n 3<\/dd>\n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 hi\u1ec7u qu\u1ea3 nh\u00f3m.<\/p>\n D.<\/strong>M\u1eadt \u0111\u1ed9 cao hay th\u1ea5p kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 l\u1ecdc n\u01b0\u1edbc<\/p>\n C\u00e2u 15:<\/strong>(ID: 99639)<\/strong>X\u00e9t c\u00e1c nh\u00f3m lo\u00e0i th\u1ef1c v\u1eadt:<\/p>\n (1) th\u1ef1c v\u1eadt th\u00e2n th\u1ea3o c\u00f3 m\u00f4 d\u1eadu ph\u00e1t tri\u1ec3n, bi\u1ec3u b\u00ec d\u00e0y,<\/p>\n (2) th\u1ef1c v\u1eadt th\u00e2n th\u1ea3o c\u00f3 m\u00f4 d\u1eadu k\u00e9m ph\u00e1t tri\u1ec3n, bi\u1ec3u b\u00ec m\u1ecfng,<\/p>\n (3) th\u1ef1c v\u1eadt th\u00e2n g\u1ed7 c\u00f3 l\u00e1 d\u00e0y, m\u00f4 d\u1eadu ph\u00e1t tri\u1ec3n, bi\u1ec3u b\u00ec d\u00e0y,<\/p>\n (4) th\u1ef1c v\u1eadt th\u00e2n c\u00e2y b\u1ee5i c\u00f3 m\u00f4 d\u1eadu ph\u00e1t tri\u1ec3n, bi\u1ec3u b\u00ec d\u00e0y.<\/p>\n Trong qu\u00e1 tr\u00ecnh di\u1ec5n th\u1ebf nguy\u00ean sinh, th\u1ee9 t\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c nh\u00f3m lo\u00e0i th\u1ef1c v\u1eadt n\u00e0y l\u00e0:<\/p>\n A.<\/strong>1\u2192 4\u2192 3\u2192 2.   B.<\/strong>1\u2192 2\u2192 3\u2192 4.   C.<\/strong>3\u2192 4\u2192 2\u2192 1.   D.<\/strong>1\u2192 2\u2192 4\u2192 3.<\/p>\n C\u00e2u 16:<\/strong>(ID: 99640)<\/strong>Cho bi\u1ebft c\u00e1c codon (b\u1ed9 ba m\u00e3 sao) m\u00e3 h\u00f3a c\u00e1c axit amin t\u01b0\u01a1ng \u1ee9ng nh\u01b0 sau: AAU: Asparagin(Asn), XXX: Prolin(Pro), GGG: Glixin(Gly) v\u00e0 UUU: Pheninalanin(Phe). \u0110o\u1ea1n m\u1ea1ch g\u1ed1c n\u00e0o sau \u0111\u00e2y s\u1ebd m\u00e3 ho\u00e1 cho chu\u1ed7i polipeptit g\u1ed3m c\u00e1c axit amin theo tr\u00ecnh t\u1ef1 sau: Phe \u2013 Gly \u2013 Asn \u2013 Pro?<\/p>\n A.<\/strong>5\u2019\u2013 GGGTTAXXXAAA \u2013 3\u2019.         B.<\/strong>5\u2019 \u2013 AAAXXXTTAGGG \u2013 3\u2019.<\/p>\n C.<\/strong>3\u2019 \u2013 GGGTTAXXXAAA \u2013 5\u2019.        D.<\/strong>5\u2019\u2013 GGGATTXXXAAA \u2013 3\u2019.<\/p>\n C\u00e2u 17:<\/strong>(ID: 99641)<\/strong>Qu\u00e1 tr\u00ecnh t\u1ef1 nh\u00e2n \u0111\u00f4i c\u1ee7a ADN nh\u00e2n c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m:<\/p>\n (1) Di\u1ec5n ra \u1edf trong nh\u00e2n, t\u1ea1i k\u00ec trung gian c\u1ee7a qu\u00e1 tr\u00ecnh ph\u00e2n b\u00e0o.<\/p>\n (2) Di\u1ec5n ra theo nguy\u00ean t\u1eafc b\u1ed5 sung v\u00e0 nguy\u00ean t\u1eafc b\u00e1n b\u1ea3o to\u00e0n.<\/p>\n (3) C\u1ea3 hai m\u1ea1ch \u0111\u01a1n \u0111\u1ec1u l\u00e0m khu\u00f4n \u0111\u1ec3 t\u1ed5ng h\u1ee3p m\u1ea1ch m\u1edbi.<\/p>\n (4) \u0110o\u1ea1n okazaki \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p theo chi\u1ec1u 5\u2019 \u2192 3\u2019<\/p>\n (5) Khi m\u1ed9t ph\u00e2n t\u1eed ADN t\u1ef1 nh\u00e2n \u0111\u00f4i 2 m\u1ea1ch m\u1edbi \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p \u0111\u1ec1u \u0111\u01b0\u1ee3c k\u00e9o d\u00e0i li\u00ean t\u1ee5c v\u1edbi s\u1ef1<\/p>\n ph\u00e1t tri\u1ec3n c\u1ee7a ch\u1ea1c ch\u1eef Y.<\/p>\n (6) Qua m\u1ed9t l\u1ea7n nh\u00e2n \u0111\u00f4i t\u1ea1o ra hai ADN con c\u00f3 c\u1ea5u tr\u00fac gi\u1ed1ng ADN m\u1eb9. <\/p>\n (7) Enzim n\u1ed1i ch\u1ec9 t\u00e1c \u0111\u1ed9ng v\u00e0o 1 m\u1ea1ch khu\u00f4n trong 1 \u0111\u01a1n v\u1ecb t\u00e1i b\u1ea3n<\/p>\n Ph\u01b0\u01a1ng \u00e1n \u0111\u00fang l\u00e0:<\/p>\n A.<\/strong>1, 2, 4, 5, 6, 7     B.<\/strong>1, 2, 3, 4, 6.      C.<\/strong>1, 2, 3, 4, 7.      D.<\/strong>1, 3, 4, 5, 6.<\/p>\n C\u00e2u 18:<\/strong>(ID: 99642)<\/strong>Chu tr\u00ecnh tu\u1ea7n ho\u00e0n cacbon trong sinh quy\u1ec3n c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0:<\/p>\n A.<\/strong>M\u1ed9t l\u01b0\u1ee3ng nh\u1ecf cacbon t\u00e1ch ra \u0111i v\u00e0o v\u1eadt ch\u1ea5t l\u1eafng \u0111\u1ecdng v\u00e0 kh\u00f4ng ho\u00e0n tr\u1ea3 l\u1ea1i cho chu tr\u00ecnh.<\/p>\n B.<\/strong>Ngu\u1ed3n cacbon \u0111\u01b0\u1ee3c sinh v\u1eadt tr\u1ef1c ti\u1ebfp s\u1eed d\u1ee5ng l\u00e0 d\u1ea7u l\u1eeda v\u00e0 than \u0111\u00e1 trong v\u1ecf Tr\u00e1i \u0110\u1ea5t.<\/p>\n C.<\/strong>Th\u1ef1c v\u1eadt l\u00e0 nh\u00f3m duy nh\u1ea5t trong qu\u1ea7n x\u00e3 c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra cacbon h\u1eefu c\u01a1 t\u1eeb cacbon \u0111i\u00f4xit (CO<\/p>\n 2<\/dd>\n ).<\/p>\n D.<\/strong>Ngu\u1ed3n d\u1ef1 tr\u1eef cacbon l\u1edbn nh\u1ea5t l\u00e0 cacbon \u0111i\u00f4xit (CO<\/p>\n 2<\/dd>\n ) trong kh\u00ed quy\u1ec3n.<\/p>\n C\u00e2u 19:<\/strong>(ID: 99643)<\/strong>Khi n\u00f3i v\u1ec1 qu\u00e1 tr\u00ecnh ph\u00e1t sinh s\u1ef1 s\u1ed1ng tr\u00ean Tr\u00e1i \u0111\u1ea5t, k\u1ebft lu\u1eadn n\u00e0o sau \u0111\u00e2y l\u00e0 \u0111\u00fang?<\/p>\n A.<\/strong>L\u1ecbch s\u1eed Tr\u00e1i \u0111\u1ea5t c\u00f3 5 \u0111\u1ea1i, trong \u0111\u00f3 \u0111\u1ea1i C\u1ed5 sinh chi\u1ebfm th\u1eddi gian d\u00e0i nh\u1ea5t.<\/p>\n B.<\/strong>\u0110\u1ea1i T\u00e2n sinh \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi s\u1ef1 ph\u00e1t sinh c\u00e1c lo\u00e0i th\u00fa, chim m\u00e0 \u0111\u1ec9nh cao l\u00e0 s\u1ef1 ph\u00e1t sinh lo\u00e0i ng\u01b0\u1eddi.<\/p>\n C.<\/strong>C\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt v\u00e0 th\u1ef1c v\u1eadt \u1edf c\u1ea1n \u0111\u1ea7u ti\u00ean xu\u1ea5t hi\u1ec7n v\u00e0o \u0111\u1ea1i C\u1ed5 sinh.<\/p>\n D.<\/strong>\u0110\u1ea1i Trung sinh \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi s\u1ef1 ph\u00e1t sinh v\u00e0 h\u01b0ng th\u1ecbnh c\u1ee7a b\u00f2 s\u00e1t kh\u1ed5ng l\u1ed3.<\/p>\n C\u00e2u 20:<\/strong>(ID: 99644)<\/strong>Cho 1 gen ph\u00e2n m\u1ea3nh \u1edf t\u1ebf b\u00e0o nh\u00e2n th\u1ef1c c\u00f3 15 \u0111o\u1ea1n intron v\u00e0 exon, c\u00e1c exon d\u00e0i b\u1eb1ng nhau v\u00e0 b\u1eb1ng 204 angstron, c\u00e1c intron d\u00e0i b\u1eb1ng nhau v\u00e0 b\u1eb1ng 102 angstron. K\u1ebft lu\u1eadn n\u00e0o \u0111\u00fang:<\/p>\n A.<\/strong>Gen tr\u00ean c\u00f3 th\u1ec3 mang th\u00f4ng tin t\u1ed5ng h\u1ee3p 40320 chu\u1ed7i polypeptit kh\u00e1c nhau.<\/p>\n B.<\/strong>Tr\u00ean m\u1ea1ch g\u1ed1c, n\u1ebfu tr\u00ecnh t\u1ef1 triplet th\u1ee9 82 l\u00e0 3'AXX5' th\u00ec \u0111\u1ed9t bi\u1ebfn thay c\u1eb7p AT \u1edf b\u1ed9 3 n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn thay \u0111\u1ed5i th\u00e0nh ph\u1ea7n axit amin trong pr\u00f4t\u00eain \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p.<\/p>\n C.<\/strong>Tr\u00ean m\u1ea1ch g\u1ed1c, n\u1ebfu c\u00f3 1 \u0111\u1ed9t bi\u1ebfn l\u00e0m xu\u1ea5t hi\u1ec7n b\u1ed9 3 k\u1ebft th\u00fac \u1edf triplet th\u1ee9 117 th\u00ec chu\u1ed7i polypeptit ho\u00e0n ch\u1ec9nh \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p ch\u1ee9a 158 axitamin<\/p>\n D.<\/strong>Tr\u00ean m\u1ea1ch g\u1ed1c, n\u1ebfu thay th\u1ebf triplet th\u1ee9 51 b\u1eb1ng 3'ATT5' th\u00ec pr\u00f4t\u00eain \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p d\u00e0i 147 A<\/p>\n 0<\/dd>\n<\/p>\n C\u00e2u 21:<\/strong>(ID: 99645)<\/strong>K\u1ebft lu\u1eadn n\u00e0o sau \u0111\u00e2ykh\u00f4ng<\/strong>\u0111\u00fang v\u1ec1 \u0111\u1ed9ng v\u1eadt \u0111\u1eb3ng nhi\u1ec7t?<\/p>\n A.<\/strong>Khi ng\u1ee7 \u0111\u00f4ng, nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 c\u1ee7a g\u1ea5u v\u1eabn \u0111\u01b0\u1ee3c duy tr\u00ec \u1ed5n \u0111\u1ecbnh.<\/p>\n B.<\/strong>\u0110\u1ed9ng v\u1eadt \u0111\u1eb3ng nhi\u1ec7t c\u00f3 c\u01a1 ch\u1ebf \u0111i\u1ec1u ch\u1ec9nh  nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3.<\/p>\n C.<\/strong>\u0110\u1ed9ng v\u1eadt \u0111\u1eb3ng nhi\u1ec7t \u1edf v\u00f9ng l\u1ea1nh c\u00f3 k\u00edch th\u01b0\u1edbc c\u01a1 th\u1ec3 b\u00e9 h\u01a1n \u1edf v\u00f9ng n\u00f3ng.<\/p>\n D.<\/strong>C\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt thu\u1ed9c l\u1edbp th\u00fa, chim l\u00e0 \u0111\u1ed9ng v\u1eadt \u0111\u1eb3ng nhi\u1ec7t.<\/p>\n C\u00e2u 22:<\/strong>(ID: 99646)<\/strong>Khi n\u00f3i v\u1ec1 m\u1ee9c ph\u1ea3n \u1ee9ng, nh\u1eadn \u0111\u1ecbnh n\u00e0o sau \u0111\u00e2ykh\u00f4ng<\/strong>\u0111\u00fang?<\/p>\n A.<\/strong>T\u00ednh tr\u1ea1ng s\u1ed1 l\u01b0\u1ee3ng th\u01b0\u1eddng c\u00f3 m\u1ee9c ph\u1ea3n \u1ee9ng r\u1ed9ng.<\/p>\n B.<\/strong>C\u00e1c gi\u1ed1ng kh\u00e1c nhau c\u00f3 m\u1ee9c ph\u1ea3n \u1ee9ng kh\u00e1c nhau.<\/p>\n C.<\/strong>M\u1ee9c ph\u1ea3n \u1ee9ng kh\u00f4ng do ki\u1ec3u gen quy \u0111\u1ecbnh.<\/p>\n D.<\/strong>T\u00ednh tr\u1ea1ng ch\u1ea5t l\u01b0\u1ee3ng th\u01b0\u1eddng c\u00f3 m\u1ee9c ph\u1ea3n \u1ee9ng h\u1eb9p.<\/p>\n C\u00e2u 23:<\/strong>(ID: 99647)<\/strong>T\u1ef1 th\u1ee5 ph\u1ea5n \u1edf th\u1ef1c v\u1eadt c\u00f3 hoa l\u00e0:<\/p>\n A.<\/strong>Ch\u1ec9 nh\u1eefng c\u00e2y c\u00f3 c\u00f9ng ki\u1ec3u gen m\u1edbi c\u00f3 th\u1ec3 giao ph\u1ea5n cho nhau<\/p>\n B.<\/strong>H\u1ea1t ph\u1ea5n c\u1ee7a c\u00e2y n\u00e0o th\u1ee5 ph\u1ea5n cho no\u00e3n c\u1ee7a c\u00e2y \u0111\u00f3<\/p>\n C.<\/strong>H\u1ea1t ph\u1ea5n c\u1ee7a c\u00e2y n\u00e0y th\u1ee5 ph\u1ea5n cho c\u00e2y kh\u00e1c<\/p>\n D.<\/strong>H\u1ea1t ph\u1ea5n c\u1ee7a hoa n\u00e0o th\u1ee5 ph\u1ea5n cho no\u00e3n c\u1ee7a hoa \u0111\u00f3<\/p>\n C\u00e2u 24:<\/strong>(ID: 99648)<\/strong>Cho ru\u1ed3i gi\u1ea5m thu\u1ea7n ch\u1ee7ng m\u1eaft \u0111\u1ecf, c\u00e1nh nguy\u00ean giao ph\u1ed1i v\u1edbi ru\u1ed3i gi\u1ea5m m\u1eaft tr\u1eafng, c\u00e1nh x\u1ebb thu \u0111\u01b0\u1ee3c F1 \u0111\u1ed3ng lo\u1ea1t m\u1eaft \u0111\u1ecf, c\u00e1nh nguy\u00ean. Ti\u1ebfp t\u1ee5c cho F1 giao ph\u1ed1i v\u1edbi nhau, \u1edf F2 thu \u0111\u01b0\u1ee3c 282 ru\u1ed3i m\u1eaft \u0111\u1ecf, c\u00e1nh nguy\u00ean, 67 ru\u1ed3i m\u1eaft tr\u1eafng, c\u00e1nh x\u1ebb, 18 ru\u1ed3i m\u1eaft \u0111\u1ecf, c\u00e1nh x\u1ebb v\u00e0 18 ru\u1ed3i m\u1eaft tr\u1eafng, c\u00e1nh nguy\u00ean. Cho bi\u1ebft m\u1ed7i t\u00ednh tr\u1ea1ng do m\u1ed9t gen qui \u0111\u1ecbnh, c\u00e1c gen \u0111\u1ec1u n\u1eb1m tr\u00ean NST gi\u1edbi t\u00ednh X v\u00e0 m\u1ed9t s\u1ed1 ru\u1ed3i m\u1eaft tr\u1eafng, c\u00e1nh x\u1ebb b\u1ecb ch\u1ebft \u1edf giai \u0111o\u1ea1n ph\u00f4i. T\u00ednh theo l\u00ed thuy\u1ebft, s\u1ed1 l\u01b0\u1ee3ng ru\u1ed3i m\u1eaft tr\u1eafng, c\u00e1nh x\u1ebb \u0111\u00e3 b\u1ecb ch\u1ebft l\u00e0:<\/p>\n A.<\/strong>30 con.        B.<\/strong>15 con.        C.<\/strong>18 con.        D.<\/strong>20 con.<\/p>\n C\u00e2u 25:<\/strong>(ID: 99649)<\/strong>Trong qu\u00e1 tr\u00ecnh d\u1ecbch m\u00e3 t\u1ed5ng h\u1ee3p Prot\u00eain, y\u1ebfu t\u1ed1kh\u00f4ng<\/strong>tham gia tr\u1ef1c ti\u1ebfp l\u00e0<\/p>\n A.<\/strong>tARN.         B.<\/strong>mARN.       C.<\/strong>rARN.         D.<\/strong>ADN.<\/p>\n C\u00e2u 26:<\/strong>(ID: 99650)<\/strong>\u1ede m\u1ed9t lo\u00e0i th\u1ef1c v\u1eadt, alen D qui \u0111\u1ecbnh qu\u1ea3 m\u00e0u \u0111\u1ecf tr\u1ed9i ho\u00e0n to\u00e0n so v\u1edbi alen d qui \u0111\u1ecbnh qu\u1ea3 m\u00e0u v\u00e0ng; alen F ki\u1ec3m so\u00e1t s\u1ef1 t\u1ed5ng h\u1ee3p ch\u1ea5t di\u1ec7p l\u1ee5c l\u00e0m cho l\u00e1 c\u00f3 m\u00e0u xanh l\u00e0 tr\u1ed9i ho\u00e0n to\u00e0n so v\u1edbi alen f l\u00e0m m\u1ea5t kh\u1ea3 n\u0103ng n\u00e0y khi\u1ebfn cho l\u00e1 c\u00f3 m\u00e0u v\u00e0ng l\u01b0u hu\u1ef3nh v\u00e0 ch\u1ebft \u1edf giai \u0111o\u1ea1n m\u1ea7m. C\u00e1c c\u1eb7p gen n\u00e0y c\u00f9ng n\u1eb1m tr\u00ean m\u1ed9t c\u1eb7p NST th\u01b0\u1eddng v\u00e0 li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1edbi nhau trong qu\u00e1 tr\u00ecnh gi\u1ea3m ph\u00e2n. Ng\u01b0\u1eddi ta \u0111\u00e3 th\u1ef1c hi\u1ec7n ph\u00e9p lai P v\u00e0 thu  \u0111\u01b0\u1ee3c 414 c\u00e2y qu\u1ea3  \u0111\u1ecf, l\u00e1 xanh v\u00e0 138 c\u00e2y qu\u1ea3 v\u00e0ng, l\u00e1 xanh.  Ph\u00e9p lai P c\u00f3 th\u1ec3 l\u00e0<\/p>\n <\/p>\n \u0110\u00e1p \u00e1n \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n sinh n\u0103m 2016- \u0111\u1ec1 s\u1ed1 9<\/strong><\/p>\n <\/strong><\/p>\n<\/p>\n <\/strong><\/p>\n T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":" \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n Sinh n\u0103m 2016 t\u1ed5 ch\u1ee9c thi l\u1ea7n th\u1ee9 9 bao g\u1ed3m 50 c\u00e2u h\u1ecfi v\u00e0 c\u00f3 \u0111\u00e1p \u00e1n h\u01b0\u1edbng d\u1eabn tr\u1ea3 l\u1eddi b\u00ean d\u01b0\u1edbi Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n Sinh C\u00e2u 1:(ID: 99623)C\u1ea5u tr\u00fac di truy\u1ec1n c\u1ee7a QT nh\u01b0 sau: 0,3AaBB:0,4AaBb:0,3aabb . Cho qu\u1ea7n […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[129],"tags":[],"yoast_head":"\n