Biology Chapter Inherittance Mcqs

#17
The chromosome pairs in drosophila are

A) 2

B) 3

C) 4

D) 5

Answer: C

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#18
In humans, what is the probability that the 2nd child will be a son

A) 1/8

B) 1/4

C) 1/2

D) 1

Answer: C

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#19
XY sex chromosomes are found in

A) Human female

B) Drosophila female

C) Earthworm

D) Hen

Answer: D

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#20
The inheritance of skin color in man is an example of

A) Linkage

B) Polygenic inheritance

C) Crossing over

D) Multiple alleles

Answer: B

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#21
The genotype that results in Rh-ve individual is

A) aa

B) cc

C) dd

D) hh

Answer: C

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#22
In a di-hybrid cross of the heterozygote parents in pea plants, involving seed color and shape, the expected ratio of the off springs with yellow wrinkled seeds is

A) 9/16

B) 3/16

C) 1/16

D) 5/16

Answer: C

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#23
Which blood group genotype shows co-dominance?

A) I^AI^A

B) I^BI^B

C) I^AI^B

D) I^OI^O

Answer: A

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#24
In the construction of chromosome maps, the evidence is derived mainly from

A) Crossing over values

B) Chromosome behavior during meiosis

C) Electron microscopy

D) Genetic ratio

Answer: C

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Biology

#17 The chromosome pairs in drosophila are

A) 2 B) 3 C) 4 D) 5

Comments:

#18 In humans, what is the probability that the 2nd child will be a son

A) 1/8 B) 1/4 C) 1/2 D) 1

Comments:

#19 XY sex chromosomes are found in

A) Human female B) Drosophila female C) Earthworm D) Hen

Comments:

#20 The inheritance of skin color in man is an example of

A) Linkage B) Polygenic inheritance C) Crossing over D) Multiple alleles

Comments:

#21 The genotype that results in Rh-ve individual is

A) aa B) cc C) dd D) hh

Comments:

#22 In a di-hybrid cross of the heterozygote parents in pea plants, involving seed color and shape, the expected ratio of the off springs with yellow wrinkled seeds is

A) 9/16 B) 3/16 C) 1/16 D) 5/16

Comments:

#23 Which blood group genotype shows co-dominance?

A) IAIA B) IBIB C) IAIB D) IOIO

Comments:

#24 In the construction of chromosome maps, the evidence is derived mainly from

A) Crossing over values B) Chromosome behavior during meiosis C) Electron microscopy D) Genetic ratio

Comments:

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#17
The chromosome pairs in drosophila are

A) 2

B) 3

C) 4

D) 5

#18
In humans, what is the probability that the 2nd child will be a son

A) 1/8

B) 1/4

C) 1/2

D) 1

#19
XY sex chromosomes are found in

A) Human female

B) Drosophila female

C) Earthworm

D) Hen

#20
The inheritance of skin color in man is an example of

A) Linkage

B) Polygenic inheritance

C) Crossing over

D) Multiple alleles

#21
The genotype that results in Rh-ve individual is

A) aa

B) cc

C) dd

D) hh

#22
In a di-hybrid cross of the heterozygote parents in pea plants, involving seed color and shape, the expected ratio of the off springs with yellow wrinkled seeds is

A) 9/16

B) 3/16

C) 1/16

D) 5/16

#23
Which blood group genotype shows co-dominance?

A) I^AI^A

B) I^BI^B

C) I^AI^B

D) I^OI^O

#24
In the construction of chromosome maps, the evidence is derived mainly from

A) Crossing over values

B) Chromosome behavior during meiosis

C) Electron microscopy

D) Genetic ratio