Biology, 26.04.2021 21:50 allieballey0727
An amniocentesis is a medical procedure that is used to detect many genetic
disorders in humans before birth. The karyotype below shows the number and
structure of homologous pairs of chromosomes in a body cell of a human fetus taken
from this medical procedure.
What caused the chromosomal alteration in number 21?
A) a part of a chromosome was lost (deletion)
B) a duplicated chromosome failed to separate (nondisjunction)
C) part of the chromosome attached to another chromosome (translocation)
D) some of the genes on a chromosome were reversed (inversion)
Answers: 1
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An amniocentesis is a medical procedure that is used to detect many genetic
disorders in humans be...
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