The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in:
(a) only testis

(b) only ovary

(c) both ovary and testis

(d) all body cells

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

Q.

Identify the type of cell division that matches the description given below? ​

I. Both daughter cells have the same number of chromosomes as the parent cell​

II. Only one nuclear division occurs ​

III. The chromosomal number of daughter cell formed is denoted as ‘n’​

Q. Which of the following endocrine gland does not occur as a pair in the human body?
(a) adrenal
(b) pituitary
(c) testis
(d) ovary

Q. Synthesis of lipids and steroids SER in the cells of testis and ovary and cortex of adrenal gland is concerned with the synthesis of steroid hormones and lipids.

Q. Match the following and choose the correct answer.

(A) Hermaphrodite	(i) Produces blood cells and haemoglobin
(B) Direct development	(ii) Testis and ovary in the same animal
(C) Chemoreceptor	(iii) Larval form absent
(D) Blood gland in earthworm	Sense of chemical substances