Christina Herrera

Biology

10 August, 08:08

Why can fraternal twins be different genders, but identical are always the

same gender?

O

A. Fraternal twins grow in different uteruses.

B. Fraternal twins are formed by the same sperm.

O

c. Fraternal twins have different chromosomes.

O

D. Fraternal twins are born at different times.

+5

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