Cu 1 t bin NST bao gm cc dng: A) a bi v d bi B) Thm on v o on C) Chuyn on tng h v khng tng h D) t bin v s lng v cu trc NST p n D Cu 2 C ch pht sinh t bin cu trc NDT l do tc nhn t bin gy ra: A) t gy NST B) Tc ng qu trnh nhn i NST C) Trao i cho bt thng ca cc cp NST tng ng D) Tt c u ng p n -D

Cu 3 Hnh v di y m t hn tng t bin no ? A B C D E F G H A B C E F G H

A) Lp on (NST) B) o on NST C) Chuyn on NST tng h D) Mt on NST p n D Cu 4 S trao i cho bt thng gia cc crmatt trong cp NST tng ng thi k u 1 trong phn bo gim nhim lm xut hin dng t bin: A) Hon v gen B) D bi C) Lp on NST D) o on NST p n C Cu 5 Hi chng no di y ngi l do t bin cu trc nhim sc th: A) Hi chng ao B) Bnh ung th mu C) Hi chng Tcn D) Hi chng Claiphent p n B Cu 6 t bin xy ra di tc dng ca: A) Mt s tc nhn vt l v ho hc B) Ri lon phn ly ca cc cp NST tng ng C) Cc ri lon sinh l, sinh ho ni bo D) A v C ng p n -D Cu 7 Hin tng t bin lp on nhim sc th dn n: A) Gy cht

B) Lm tng biu hin ca tnh trng C) Lm gim biu hin ca tnh trng D) Lm tng hoc gim biu hin ca tnh trng p n D Cu 8 Nhng t bin cu trc no sau y s nh hng n hnh thi NST: A) Mt on B) Chuyn on tng h C) Chuyn on khng tng h D) A v B ng p n A Cu 9 Nhng t bin cu trc NST no s lm thay i v tr ca cc gen gia 2 NST ca cp NST tng ng: A) Hon v gen B) Chuyn on khng tng h C) Mt on D) Lp on p n D Cu 10 Nhng t bin no di y khng lm mt hoc thm cht liu di truyn: A) Mt on v lp on B) Mt on v o on C) o on v chuyn on D) Lp on v chuyn on p n C Cu 11 Nhn xt no y l ng: A) C th mang t bin o on v chuyn on c th khng c biu hin trn kiu hnh nhng c th gy hu qu nghim trng cho th h sau B) C th mang t bin o on gy ra nhng hu qu nghim trng trn kiu hnh C) t bin chuyn on khng gy ra nhng hu qu nghim trng trn kiu hnh D) t bin xy ra do s trao i cho gia cc NST thuc cc cp ng dng p n A Cu 12 rui gim t bin (M: mt on; L: lp on; : o on) trn NST (X;Y) lm cho mt li thnh mt dt: A) L;X B) ;Y C) M;X D) ;X p n A

Cu 13 Hnh v di y m t hin tng: A B C D E F G H A B C B C D E F G H

A) Mt on NST B) Lp on (NST) C) Chuyn on trong mt NST D) o on NST p n B Cu 14 on NST t gy khng mang tm ng trong trng hp t bin mt on s A) Khng nhn i v tham gia vo cu trc nhn ca 1 trong 2 t bo con B) B tiu bin trong qu trnh phn bo C) Tr thnh NST ngoi nhn D) Tr thnh mt NST mi p n B

Cu 15 Hnh v di y m t hin tng: A B C D E F G H A E F G H

A) Mt on NST B) Lp on NST C) Chuyn on trong mt NST D) o on NST p n D Cu 16 Hin tng bt thng no di y l hin tng chuyn on NST A) Mt NST di chuyn t v tr ny sang v tr khc trong cng mt NST B) Mt on NST b mt C) Mt on NST b o ngc 1800 D) Mt on NST b lp li p n A Cu 17 la mch, s gia tng hot tnh ca enzym amilaza xy ra do: A) C mt t bin o on NST B) C mt t bin lp on NST C) C mt t bin chuyn on NST D) C mt t bin mt on NST p n B Cu 18 Loi t bin no sau y t nh hng n sc sng ca c th nhng lm tng cng s sai khc gia cc NST tng ng trong cc ni thuc cng mt loi: A) Mt on B) o on C) Chuyn on D) Lp on p n B

D C B

Cu 19 Hnh v di y m t hin tng: A B C D E F G H A B C G H

A) Mt on NST B) Lp on NST C) Chuyn on trong mt NST D) o on NST p n D

Cu 20 Hnh v di y m t hn tng: A B C D E F G H M N O C D E F G H

A) Mt on NST B) Lp on NST C) Chuyn on trong mt NST D) o on NST p n C

Cu 21 Hnh v di y m t hin tng: A B C D E F G H A E F G H

A) Mt on NST B) Lp on NST C) Chuyn on trong mt NST D) o on NST p n D Cu 22 Loi t bin NST no di y lm tng cng hoc gim thiu s biu hin ca tnh trng: A) Mt on B) o on C) Chuyn on

D C B

M N O P Q R A B P Q R

F E D

D) Lp on p n D

Cu 23 Hnh v di y m t hn tng: A B C D E F G H M N OA B C D E F G H

A) Mt on NST B) Lp on NST C) Chuyn on khng tng h D) o on NST p n C

Cu 24 Hnh v di y m t hin tng: A B C D E F G H A D E F B C G H

A) Mt on NST B) Lp on NST C) Chuyn on trong mt NST D) o on NST p n C

M N O P Q R P Q R