Question

9. True or false: Twins with
similar gender i.e both are
either boys or girls are dizygotic
twins.​

Answer 1

Answer:

True

Explanation:

hope it helps you.....

Answer 2

Explanation:

Twins are two offspring produced by the same pregnancy.[1] Twins can be either monozygotic ('identical'), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.[2]

In contrast, a fetus that develops alone in the womb (the much more common case, in humans) is called a singleton, and the general term for one offspring of a multiple birth is a multiple.[3] Unrelated look-alikes whose resemblance parallels that of twins are referred to as doppelgangers.