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Dmitry [639]
3 years ago
7

Down syndrome is a genetic disorder that is also called trisomy 21. A person with Down Syndrome has an extra copy of chromosome

21. Which best describes the genetic mutation that results in Down syndrome.
Nondisjunction during meiosis, resulting in uneven distribution of chromosomes
Complete duplication of chromosomes during polyploidy
Translocation during genetic replication, creating nonhomologous chromosomes
Crossing over during meiosis, leading to an exchange of genetic information
Biology
2 answers:
pochemuha3 years ago
4 0

Down syndrome is  caused by the nondisjuction of the chromosome 21.

Due to the vulgarism checker, the answer can not be posted on this text editor so see attachment for more details

Learn more: brainly.com/question/9782041

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andrew-mc [135]3 years ago
4 0

Answer:

A

Explanation:

Nondisjunction during meiosis, resulting in uneven distribution of chromosomes

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