Q5 of 55 Page 247

New species may be formed if:

(i) DNA undergoes significant changes in germ cells


(ii) chromosome number changes in the gamete


(iii) there is no change in the genetic material


(iv) mating does not take place

new species are formed due to change in genetic material of the reproductive tissues of the organism. Thus, changes in the DNA or chromosome number can lead to formation of new species.

More from this chapter

All 55 →
3

A zygote which has an X-chromosome inherited from the father will develop into a:

 4

Select the incorrect statement:

 6

From the list given below, select the character which can be acquired but not inherited:

 7

The two versions of a trait (character) which are brought in by the male and female gametes are situated on: