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Science Quiz 42

Welcome to your Science Quiz 42

1. 
With reference to the blood in a normal person, which one of the following statements is correct? [2002]

2. 
Consider the following plants: [2002]

  1. Bougainvillea 
  2. Carnations 
  3. Cocoa 
  4. Grapes 

Which of these plants are propagated by stem cuttings?

3. 
In the context of organic evolution, the loss of limbs of snakes is explained by the phenomenon of: [2002]

4. 
When one gene controls two or more different characters simultaneously, the phenomenon is called: [2002]

5. 
With reference to the human body, consider the following statements:

  1. The production of somatropin goes up when a person exercises. 
  2. Men’s testes produce progesterone. 
  3. Women’s adrenal glands secrete testosterone. 
  4. Stress causes the adrenal to release very less amount of cortisol than usual. 

Which of these statements are correct?

6. 
Which one of the following is monogamous? [2002]

7. 
In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as: [2002]

8. 
Which one of the following statements is not correct? [2002]

9. 
Which one of the following statements is correct? [2002]

10. 
Assertion (A): Drinking of whisky increases the frequency of urination. [2002] Reason (R): Alcohol intake speeds up the secretion of vasopressin in the body.

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