question_answer 39)

  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 (a) (i) and (ii)                      (b) (i) and (iii)                     (c) (ii), (iii) and (iv)           (d) (i), (ii) and (iii)

Answer:

                  (a) New species may be formed if the DNA changes are severe enough, such as a change in the number of chromosome. This leads to new variations.