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  • Chromosomal and Molecular Basis of Inheritance Online Quiz
  • A mammalian zygote with which chromosomal abnormality wil...
Multiple choice

A mammalian zygote with which chromosomal abnormality will NEVER develop into a viable embryo?

  1. YO

  2. XO

  3. XXX

  4. XXY

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A zygote with a YO genotype lacks an X chromosome entirely. Because the X chromosome contains essential genes for development, a YO embryo cannot survive.

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