Genetics Review Questions Kim Smith

Genetics Review Questions Kim Smith - Fy a = 65 5 A patient...

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Genetics Review Questions Name Kim Smith 1. In pea plants, spherical seeds (S) are dominant to dented seeds (s). In a cross of two plants that are heterozygous for the seed shape trait, what proportion of the offspring would be predicted to have spherical seeds? 3:1 3 of the offspring would have spherical seeds 2. To identify the genotype of yellow-seeded pea plants as either homozygous (YY) or heterozygous (Yy), you could cross them with plants of what genotype. Yy 3. Determine the gene frequencies of the genes E and e from the observation that 30% of the blood samples in the population are E antigen positive. E=83% e =17% 4. 10,000 individuals were tested for the Fy a antigen. 6500 tested positive and 3500 negative. What is the percentage of the Fy a positive phenotype in the population?
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Unformatted text preview: Fy a = 65% 5. A patient has anti-Fy a antibody and you need to find units to transfuse. Using the Fy a antigen frequency in 4 above, how many Red Blood Cell units out of 10 would be compatible (Fy a negative)? 4 out of 10 6. It was recently discovered that there is a trait for purple eyes that is sex-linked recessive. Brown eyes = P, purple = p. Draw a Punnett square of a mating between a purple-eyed woman and a brown-eyed man. P p Pp pp Pp pp p p 7. What pattern of inheritance is most probably depicted by the following chart? Sex linked dominant, affected males transmit the trait to all of their daughters and none of their sons. Affected heterozygous females transmit the trait to half their children male or female....
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This note was uploaded on 02/16/2011 for the course CHEM 101 taught by Professor Stegemiller during the Spring '07 term at Ohio State.

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Genetics Review Questions Kim Smith - Fy a = 65 5 A patient...

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