Biology
Biology, 02.09.2019 01:30, Ezasha

Boys can inherit the recessive allele (c) that causes red-green colour blindness from their mother, not from their father. the allele for normal red and green vision is c. which of the following genotypes are possible in men?
c only c only
b. c or c only
c. cc or cc only
d. cc, cc or cc only

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Answers: 2

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Предмет
Biology, 22.10.2019 03:20, khayes7400
Part 4: sex-linked inheritance—predicting color blindness in offspring recall that females have two x chromosomes: one from the mother and one from the father. males have one x chromosome and one y chromosome; the x chromosome comes from the mother, and the y chromosome comes from the father. traits associated with genes located on the sex chromosomes are called sex-linked traits. individuals with the sex-linked condition called red-green color blindness do not perceive the colors red and green. red-green color blindness is caused by the recessive allele c and is carried on the x chromosome. the dominant allele for normal color vision is c. when an x chromosome contains the dominant allele, the allele is written as xc. when an x chromosome contains the recessive allele, the allele is written as xc. (1 point) score 1. what is the genotype of a male with red-green color blindness? (1 point) score 2. what is the genotype of a female who is not color-blind but is a carrier of red-green color blindness? (2 points) score 3. even though red-green color blindness is a recessive trait, can a female have red-green color blindness? explain. (2 points) score 4. a man who is color-blind marries a woman who is not color-blind and is not a carrier of the allele for color blindness. create a punnett square to predict the possible genotypes of their children. part 4 punnett square (1 point) score 5. will all of the female children be carriers of the color-blind allele, or will none be carriers? explain. (1 point) score 6. will all of the male children be color-blind, or will none be color-blind? explain.
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