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8 Cards in this Set
- Front
- Back
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Karyotype
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A highly magnified photograph of chromosomes arranged in pairs. (the way we can see the three, as opposed to the two, chromosomes in the 21st pair responsible for Down Syndrome)
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gene
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section of DNA that has the
instructions for making one protein |
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homologous chromosomes
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A set of two chromosomes of the same size and shape. (They carry the same genes)
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sister chromatids
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Two duplicated identical copies of a chromosome.
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haploid (n)
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Describes cells containing only one member of each homologous pair of chromosomes (n); in humans, these cells are eggs and sperm.
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diploid (2n)
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A cell containing homologous pairs of chromosomes.
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fertilization
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The fusion of haploid gametes (in humans, egg and sperm) to produce a diploid zygote.
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zygote
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Single cell resulting from the fusion of gametes (egg and sperm).
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