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kondor19780726 [428]
2 years ago
14

Explain how trisomy 23 occurs?

Biology
2 answers:
Ann [662]2 years ago
3 0

Answer:

The addition of an extra chromosome usually occurs spontaneously during conception. The cause of this is unknown and prevention is not possible. The most important risk factor for trisomy conditions is maternal age. Women in their late 30s and 40s have a higher chance of trisomy conditions occurring.

Jlenok [28]2 years ago
3 0

A chromosome condition is caused by an alteration in the number or genetic structure of chromosomes. Trisomy ('three bodies') means the affected person has three copies of one of the chromosomes instead of two. This means they have 47 chromosomes instead of 46.

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