NEET (NTA)-National Eligibility cum Entrance Test (Medical) Biology: Questions 1036 - 1040 of 3511

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Question number: 1036

» Genetics and Evolution » Heredity and Variation » Mendelian Inheritance

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MCQ▾

Question

Grain colour in wheat is determined by three pairs of polygenes. Following the cross AABBCC (dark colour) x aabbcc (light colour), in F2 generation what proportion of the progeny likely to resemble either parent?

Choices

Choice (4) Response

a.

Half

b.

Less than 5 per cent

c.

None

d.

One third

Question number: 1037

» Ecology and Environment » Environmental Issues » Water Pollution and Its Control

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Question

Eutrophication leads to death of fish due to

Choices

Choice (4) Response

a.

Decreased algae content.

b.

Increased algae content.

c.

Increased O2 content

d.

Decreased O2 content.

Question number: 1038

» Diversity in Living World » Five Kingdom Classification » Protista

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MCQ▾

Question

During conjugation in paramecium

Choices

Choice (4) Response

a.

Out of the sixteen nuclei formed formed, from zygote, 12 become macronuclei and 4 micronuclei.

b.

Out of the four micronuclei formed, three nuclei degenerate.

c.

Out of the twelve macronuclei formed, four nuclei degenerate.

d.

Zygote undergoes eight successive divisions in each conjugant.

Question number: 1039

» Diversity in Living World » Five Kingdom Classification » Fungi

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Question

In Yeast, cell wall contains

Choices

Choice (4) Response

a.

Glucose and muramic acid

b.

Glucose and mannose

c.

Sucrose and mannose

d.

Amylose and glucose

Question number: 1040

» Biotechnology and Its Applications » Genetic Engineering

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MCQ▾

Question

Which one of the following pair is incorrect?

Choices

Choice (4) Response

a.

Cosmid – A vector for carrying large DNA fragments into host cells.

b.

Plasmid – Small piece of extra-chromosomal DNA in bacteria.

c.

Interferon – An enzyme that interferes with DNA replication.

d.

Myeloma – Antibody producing tumor cells.