Question 1 :
Which of the following is the part through vegetative propagation occur in a jasmine plant?

Question 7 :
The production of offspring by the sexual or asexual process is known as: 

Question 14 :
Which among the following are the methods used to control population growth?

Question 15 :
The features which help to distinguish the male from the female are called:

Question 16 :
The part of the flower that develops into a fruit after fertilization, is __________.

Question 18 :
Colonies of yeast fail to multiply in water, but multiply in sugar&#160;solution. Choose one reason for this.<br/>

Question 19 :
To prepare a temporary slide of yeast culture, yeast granules are added in:<br/><span>(a) distilled water</span><br/>(b) 10% sugar solution<br/>(c) 90% sugar solution<br/>(d) dilute hydrochloric acid<br/>

Question 21 :
During adolescence, the body of boys and girls undergoes certain changes. Given below are a few of those changes. Find which changes occur in boys:<br/><div>(a) Broad shoulders<div>(b) Wider chests</div><div>(c) Broadening of the hip region</div><div>(d) Development of muscles</div><div>(e) Development of mammary glands</div><div>(f) Growth of facial hair</div><div>(g) Acne and pimples on the face</div><div>(h) Development of sex organs</div><div>(i) High-pitched voice</div><div>(j) Growth of pubic hair<br/></div></div>

Question 22 :
Which one of the following methods requires two genetically variable individuals to produce the progeny?

Question 23 :
Which of the following methods of preventing pregnancy, act by changing hormonal balance of the body so that eggs are not released and fertilization cannot occur?

Question 25 :
<span>Which of the following means of birth control is most effective in preventing AIDS?</span>

Question 27 :
Organisms in population A, have no genetic variations, and organisms of population B, have genetic variations. Based on this information, choose the correct statement.

Question 28 :
Spore formation is the most common asexual method of reproduction in:

Question 29 :
A narrow waistline, wide hip and oily skin are the secondary signs of puberty in:

Question 30 :
Name the process in which thousands of plants can be raised within a limited time and space.