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14 Cards in this Set
- Front
- Back
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What are examples of chromosome disorders?
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Down syndrome, turner syndrome
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What are examples of single-gene disorders
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Hemophelia, cystic fibrosis
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What are examples of multifactorial disorders
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Diabetes, heart disease
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What are examples of mitochondrial disorders
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LHON, MERRF
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What chromosome is metacentric?
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2 - two long arms
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What chromosome is submetacentric
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18 - one short arm p, and one long arm q
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What are the sources of variation?
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Meiotic recombination: 1. meiosis produces haploid gametes, 2. maternal and paternal chromosomes mixed, 3. crossing over increases genetic variation
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What chromosome is acrocentric
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21 - stalk + satellite = p, long arm = q
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What are dispersed repetitive DNA sequences
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LINES, SINES, Alu repeats
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What are the events in meiosis
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Metaphase, anaphase, telephase, metaphase II, anaphase II
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What are satellite DNA
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Alpha, minisatellite, microsatellite
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What is the location where chromosomes cross over called?
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chiasma
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What is 1 CM?
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1 centimorgan = 1% chance of recombination
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What is the difference between male gametes vs female gametes
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Males = 4 sperm, females = 1 ovum+ 3 polar bodies
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