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alexdok [17]
3 years ago
14

Why are your chromosomes arranged in pairs

Biology
1 answer:
salantis [7]3 years ago
3 0

Answer:

Chromosomes are arranged in pairs because one of each set of the two comes from each parent .We receive half our DNA from our mother (in the ovum) and the other half from our father (in the sperm). A normal human being will therefore have 46 chromosomes or 23 pairs. This is mainly done to achieve genetic variation.

Explanation:

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As per the information about the (phylogenetic tree) given in the question,

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As this last branch holds species of two domains ( from 3 domain system of classification that includes Bacteria, Archaea, and Eukarya) , which are Archaea and Eukarya as it begins with Eukarya and later on holds the species of Archaea.

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fredd [130]

Answer:

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patriot [66]
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