The origin of the 46 chromosomes in a human zygote is

A. half from the sperm and half from the egg.
B. all from the egg.
C. all from the sperm cell.
D. half from DNA and half from RNA.


Answer: A

Anatomy & Physiology

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The physician knew her patient was most likely a child before she walked into the examination room because the X-ray revealed a(n) ________

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