carol26 carol26

09-01-2017
Biology

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What are sex chromosome what determines whether a perla is mal or female

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samuelbtta samuelbtta

09-01-2017

ik they are X and Y.....

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emiliaroosevelt emiliaroosevelt

09-01-2017

X and Y chromosomes; Females have two X chromosomes; males have one X and one Y chromosome.

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