Heredity and Evolution (part – 2)


The two parents involve in the sexual reproduction. Sexually reproducing organisms produce sex cells or gametes. The male gamete called sperm fuses with a female gamete called ovum (or egg) to from a zygote which gradually develops into a young one (or offspring).

Showing some similarities with the parents. The offspring inherit the characters (or traits) of the parents and resemble them very closely. But the Resemblance is not complete in all respects.

The offspring are never a true copy of the parents. In fact, no two individuals are exactly alike and the members of any one species differ from one another in some characters (or traits) or the other.