Answer to Question #74401 in Biochemistry for mya

Question #74401
how could a zygote end up with a extra chromosome
1
Expert's answer
2018-03-10T03:46:07-0500
Zygote could get an extra chromosome from either sperm or egg cell. In turn, these cells can get it from non-disjunction during either meiotic division. Generally, egg cells contributes to extra chromosome more often.

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