asked 211k views
4 votes
How does the karyotype of a person with Down

syndrome differ from a normal karyotype?
A It lacks a chromosome.
B It has two sex chromosomes.
C It occurs in XO individuals.
D It has an extra copy of a chromosome.

1 Answer

2 votes

Answer:

B It has two sex chromosomes

answered
User Ymin Hu
by
8.4k points
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