Genetics and Evolution (NEET Biology): Questions 13 - 17 of 154

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Question number: 13

» Genetics and Evolution » Evolution » Biological Evolution and Evidences for Biological Evolution

MCQ▾

Question

Animal which remains male initially, then changes to female (Tapeworm proglottids) is called

Choices

Choice (4) Response

a.

Apomixes

b.

Profixation

c.

Protandrous

d.

None of the above

Question number: 14

» Genetics and Evolution » Heredity and Variation » Chromosomes and Genes

MCQ▾

Question

Sex of a human child is determined ass

Choices

Choice (4) Response

a.

Size of the egg at the time of fertilization.

b.

Size of the sperm at the time of fertilization.

c.

Sex chromosome of father.

d.

Sex chromosome of mother.

Question number: 15

» Genetics and Evolution » Molecular Basis of Inheritance » DNA Replication

MCQ▾

Question

Eukaryotes differ from prokaryotes in the mechanism of DNA replication due to

Choices

Choice (4) Response

a.

Discontinuous rather than semi-discontinuous replication.

b.

Unidirectional rather than bidirectional replication.

c.

Different enzymes (instead of same enzyme) for synthesis of lagging and leading strands.

d.

Use of DNA primers rather than RNA primers.

Question number: 16

» Genetics and Evolution » Heredity and Variation » Sex Determination-in Humans, Birds, Honey Bee

MCQ▾

Question

If mother is a carrier for colour blindness and father is normal, then in the offsprings this disease may be seen in

Choices

Choice (4) Response

a.

All the sons and not in daughters.

b.

All the sons

c.

All the daughters.

d.

50 % sons and 50 % daughters (carrier).

Question number: 17

» Genetics and Evolution » Molecular Basis of Inheritance » Lac Operon

MCQ▾

Question

In the lac operon, the structural genes are switched off when

Choices

Choice (4) Response

a.

Repressor binds to promotor.

b.

Repressor binds to operator.

c.

Repressor binds to inducer.

d.

Repressor binds to regulator

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