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siniylev [52]
3 years ago
11

What is the source of the extra chromosome 21 in an individual with down syndrome?

Health
2 answers:
Juli2301 [7.4K]3 years ago
5 0

Answer:

no

Explanation:

PtichkaEL [24]3 years ago
4 0

Answer: abnormal cell division

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The B12 vitamin assists the body's neurological and cardiovascular systems by maintaining the health of blood and nerve cells. Additionally, it aids in the development of DNA and genetic material in each and every body cell. Additionally, it alters the DNA of the cells and causes genetic material to be malformed.

Here is another question with an answer similar to this about vitamin B12 deficiency: brainly.com/question/28214348

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