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
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
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
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
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
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 | |