Biology - Comprehensive Mock Test 5

Question 41 Medium

The carbon dioxide content in the air that we exhale is about

A) 4% B) 8% C) 12% D) 16%

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Question 42 Easy

The total number of car bones is

A) 2 B) 4 C) 6 D) 8

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Question 43 Medium

In angiosperms how many mega-spore mother cells are required to produce 600 functional mega-spores

A) 200 B) 600 C) 2400 D) 150

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Question 44 Medium

How many second polar bodies has produced by a 45 years virgin female in her life

A) 45 B) 0 C) 90 D) 480

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Question 45 Easy

On the Origin of Species was written by ______

A) None of the above B) Charles Darwin C) Ludmila Kuprianova D) Mikhail Fedonkin

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Question 46 Medium

Which of the following is less general in characters as compared to genus

A) Species B) Family C) Class D) Division

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Question 47 Easy

An attribute found in plants but not animals is

A) Metabolism B) Sexual reproduction C) Autotrophy D) Asexual reproduction

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Question 48 Hard

DNA is a polymer of nucleotides which are linked to each other by 3-5 phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?

A) Replace purine with pyrimidines B) Remove/Replace 3’ OH group in deoxyribose C) Remove/Replace 2’ OH group with some other group in deoxyribose D) Both b and c

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Question 49 Easy

The first genetic material could be

A) protein B) carbohydrates C) DNA D) RNA

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Question 50 Medium

Which of the following statements is the most appropriate for sickle cell anaemia

A) It cannot be treated with iron supplements. B) It is a molecular disease. C) It confers resistance of acquiring malaria D) All of the above.

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