Question

Initial clue about the genetic/chromosoma mechanism of sex-determination can be trace back to some of the experiments carried out ln (1)Human beings (2)Birds (3) Insects (4)Plants

Answer 1

Answer:

A number of insects (e.g. Drosophila) were used to show genetic mechanism of sex determination and the cytological observations in them led to the development of this mechanism. These studies were done by Henking.So, the initial clue about chromosomal mechanism of sex determination came from the experiments carried out in insects.

Hence, option (3) is correct.

Answer 2

Answer:

Initial clue about the genetic/chromosoma mechanism of sex-determination can be trace back to some of the experiments carried out ln (1)Human beings

(2)Birds

(3) Insects ✔✔

(4)Plants