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romanna [79]
3 years ago
7

What do X and Y chromosomes affect? O A. Whether someone is a female or male O O O B. How many parents a person has. C. The shap

e of a person's thumb. O D. Whether earlobes are attached.​
Biology
1 answer:
babymother [125]3 years ago
3 0

Answer:

b is right

Explanation:

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