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How is Male/Female Decided?

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The graphs below represent patterns in sex determination of reptile offspring. The two graphs display what controls the embryonic development of reptiles to decide the sex of the offspring.

What does determine the gender of reptile offspring?

A

Genes, which are a type of chromosomal determination.

B

The percent of males in the population.

C

The temperature, ​which is a type of environmental sex determinator.

D

The percent of females in the population.