Human and Social Biology - Inheritance and genes at work

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14 Terms

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chromosomes

threadlike structures located in the nuclei, on which genes are found

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What is the diploid number?

46

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what is the haploid number?

23

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How many chromosomes are found in the gametes

diploid

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what is a zygote?

a fertilized egg

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homologous

similar chromosomes

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Heterozygous

both alleles are present at a locus Aa

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Mutation

altered DNA

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gene

part of the DNA molecule on a chromosome that determines one character

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what happens in interphase

duplication

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what happens in prophase

MEOSIS forms tetrads, crossing over

MITOSIS chromosomes pulled to centre

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what happens in anaphase

pulled apart

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What happens in telophase

cytokenesis (cell splits in half)

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