Answer and Explanation:
Nondisjunction occurs when homologous chromosomes fail to segregate during anaphase I or sister chromatids fail to segregate during anaphase II. The result is an addition or loss of one or more chromosomes. Nondisjunction is associated with disorders like Down's syndrome due to an extra chromosome, Klinefelter's syndrome or Turner's syndrome. These phenomenon where one has three members of homologous chromosome is called trisomy.
Answer:
3
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Atoll reefs are generally located in lagoons
Answer:
C. It’s impossible because think about it we don’t have good/ great enough data to explain or prove which is older
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Answer:
it is the vector b hope this helps
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