The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in 

• Only testis

• Only ovary

• Both ovary and testis

• All body cells

Briefly explain the following terms:

Cytokinesis in plant cells 

State whether the following statements are true or false. If false, rewrite the correct
form of the statement by changing the first or last word only:

State whether the following statements are true or false. If false, rewrite the correct

State whether the following statements are true or false. If false, rewrite the correct
form of the statement by changing the first or last word only: 

The diagram shows a stage during cell division. Study the diagram and answer the following questions:

 (i) Name the parts labelled 1, 2 and 3.

(ii) Identify the stage shown here by giving one reason.

(iii) Where in the body does this type of cell division occur?

(iv) Name the stage prior to this stage and draw a diagram to represent the same.

Name the following:

(i) The type of cell division which occurs in the cells of the reproductive organs.

State whether the following statements are true or false. lf false rewrite the correct
form of the statement by changing the first or last word only.

Given below is an example of a certain structure and its special functional activity:

Example: (0) Ribosomes and protein synthesis.
On a similar pattern, complete the

following:

(iv) Mitochondria and __ .

Give one point of difference between the following on the basis of what is given in the brackets:

(iv) Karyokinesis and cytokinesis (explain the term)

Mention two points of differences between mitosis and meiosis