geneticsex(bio) - I.Short Answer: Circle (T) for true, (F)...

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I.Short Answer: Circle (T) for true, (F) for false or fill in the blank. 1. Alternate forms of a gene are called? ______ _ alleles______ ___ 2. The point for point pairing of homologous chromosomes is called? _synapsis_ _______. It occurs during? _ _ meiosis_I_ __________ 3. F Two deaf persons have a child with normal hearing. This proves that deafness is dominant, and both parents are heterozygous. ( epistasis?) 4. T Meiosis in human females actually begins before birth. 5. The diploid chromosome number in cats is 38, in dogs 78 and in turkeys it is 80. How many chromosomes would be present in the gametes of a cat?__ 19 ____, dog?___ 39_ _, turkey?___ 40_ ______. 6. How many gametes are expected from each cell that undergoes meiosis in a human male?____ 4 ___, female?_____ 1 ____. 7. T Heritability of IQ is rather high. This means that much of the measured variation is the result of genetic differences. 8. F Heritability of IQ is rather high. This means that IQ scores can not be improved by improved environments. II. Short Answer: I. Anonychia is a rare single gene dominant in man. Expression ranges from absence of one or more fingernails to fused fingers. Give the phenotypic and genotypic ratios expected in the following crosses: CROSS PHENOTYPIC RATIO GENOTYPIC RATIO AA X aa all affected all Aa Aa X Aa 3 affected:1 normal
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geneticsex(bio) - I.Short Answer: Circle (T) for true, (F)...

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