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 $(iii)$

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