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Y_Kistochka [10]
2 years ago
9

PLZ HELP!!!

Chemistry
1 answer:
HACTEHA [7]2 years ago
6 0

Answer:

Humans have 23 pairs of chromosomes.

A trisomy is a chromosomal condition characterised by an additional chromosome.

A person with a trisomy has 47 chromosomes instead of 46.

Down syndrome, Edward syndrome and Patau syndrome are the most common forms of trisomy.

Explanation:

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