Multiple choice

The nature of an unborn child having severe genetic defect such as mental retardation, can frequently be detected by sampling

  1. mother's uterus cells

  2. foetal cells

  3. father's blood cells

  4. cells from zygote
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A karyotype of the embryonic or foetal cells extracted from within a mother's uterus may show chromosome irregularities that are associated with specific kinds of major genetic problems.

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