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mote1985 [20]
3 years ago
5

Down syndrome is a common genetic disorder that is caused by having an extra copy of chromosome 21. Which method will show wheth

er or not a baby has down syndrome?
a. Karyotype
b. Family history
c. Genetic survey
d. Punnett square
Biology
1 answer:
yuradex [85]3 years ago
5 0

Answer:

a. Karyotype

Explanation:

Karyotypes describe the chromosome count of an organism, so all the chromosomes would be in front of you, and it'd be easy to tell if there are 2 or 3 chromosome 21.

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