asked 133k views
1 vote
Down syndrome is a condition in which the individual

a. has three copies of chromosome 21.
b. has three copies of chromosome 23.
c. lacks chromosome 46.
d. has only one chromosome 21.

asked
User Ldrrp
by
7.9k points

1 Answer

5 votes
A. has three copies of chromosome 21.
answered
User Jzepeda
by
8.2k points

No related questions found

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.