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If the paired chromosomes fail to separate during meiosis in the female, then the resulting daughter cells will receive either 2 or no copies of chromosome 21. If the resulting egg with 2 copies of chromosome 21 is fertilized with a normal sperm, the resulting zygote with be trisomy 21
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cuting trees, killing animals, and pollution.
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Biology is the study of life. The word bio means life, ology means the study of.
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I'm not sure if this is what you were looking for but this is the definition
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Bacteria is the only prokaryotes.
Some cynobacteria are also included in prokaryotes.
<span>The name Mesopotamia comes from the Greek for 'middle' and 'river,' and meant'' between the two rivers ''</span>
