Solution: Evolution will not occur until the genetic material changes and alters. As a result, the evolution of new species necessitates changes in genetic material and chromosome variety. So, the correct answer is (a) (i) and (ii).
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)
(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)
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)
(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)