Genetics and Evolution (AIIMS Biology): Questions 7 - 11 of 40

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Question number: 7

» Genetics and Evolution » Molecular Basis of Inheritance » DNA as Genetic Material

Appeared in Year: 1980

MCQ▾

Question

What is the nature of the 2 strands of a DNA duplex [AIPMT, AIIM 1986, MPPMT′1990]

Choices

Choice (4) Response

a.

Antiparallel & complimentary

b.

Antiparallel & non complimentary

c.

Dissimilar & non complimentary

d.

Identical & Complimentary

Question number: 8

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

Appeared in Year: 2012

MCQ▾

Question

If two pea plants having red (dominant) colored flowers with unknown genotype are crossed, 75 % of the flowers are red and 25 % are white. The genotype constitution of the parents having red color flower will be

Choices

Choice (4) Response

a.

two pea plants homozygous

b.

two pea plant hemizygous

c.

One homozygous one heterozygous

d.

Two pea plants heterozygous

Question number: 9

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

Appeared in Year: 1991

MCQ▾

Question

Gametes of AaBb individual can be

Choices

Choice (4) Response

a.

AB, ab

b.

Aa, Bb

c.

AB, Ab, aB, ab

d.

AB, ab, aB

Question number: 10

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

Appeared in Year: 1988

MCQ▾

Question

The percentage of ab gametes produced by AaBb parent will be

Choices

Choice (4) Response

a.

50

b.

25

c.

75

d.

12.5

Question number: 11

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

Appeared in Year: 2011

Assertion-Reason▾

Assertion (Ꭺ)

A genetist crossed two plants. He got 50 % tall and 50 % dwarf plants in the progeny.

Reason (Ꭱ)

One parent was heterozygous tall while other was dwarf.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

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