NSO Level 1- Science Olympiad (SOF) Class 12: Questions 32 - 35 of 60

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Question number: 32

» Biology » Biology in Human Welfare

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MCQ▾

Question

Oxygen binding curves of haemoglobin and myoglobin are given in the graph. Choose the correct reason which explains different oxygen binding capacities.

Graph for oxygen binding curves

Graph for Oxygen Binding Curves

Choices

Choice (4)Response

a.

Glycogen depletion in muscles is prevented by it during exercise.

b.

During strenuous conditions muscles can respire anaerobically because of it.

c.

It ensures oxygen transport from blood into the muscles.

d.

Question does not provide sufficient data or is vague

Question number: 33

» Biology » Biology in Human Welfare

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Question

How many times is the Urine produced by the human kidney concentrated than the initial filtrate formed?

Choices

Choice (4)Response

a.

1200

b.

4

c.

20

d.

2

Question number: 34

» Biology » Biotechnology

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Question

What is the most challenging issue that genome sequencing is facing?

Choices

Choice (4)Response

a.

Inability to develop fast and accurate sequencing techniques

b.

The ethics of using information from genomes at individual level

c.

DNA availability and stability

d.

All of the above

Question number: 35

» Biology » Genetics and Evolution

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Question

Crime investigators found a small sample of blood at the crime site. Only a small amount of DNA could be extracted from the place and there is requirement of more DNA. How can they amplify this small quantity?

Choices

Choice (4)Response

a.

Subjecting the DNA sample to polymerase chain reaction.

b.

Subjecting the DNA sample to electrophoresis

c.

By using a molecular probe

d.

By treating DNA sample with restriction enzymes

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