Discussion Quiz 2

Discussion Quiz 2 - diploid organism A Homozygous dominant...

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Full name: EID: Total points= 2X5=10 BIO 325 GENETICS: QUIZ 2 (January 30’ 2008, Wednesday) 1. Apply the product law to a coin-flip situation. What is the probability that on three flips of a coin, heads will occur on all three flips? A. 1/4 B. 1/2 C. 3/16 D. 1/8 2. In tigers, a recessive allele causes a white tiger (virtual absence of fur pigmentation). If two phenotypically normal tigers are mated and produce a white offspring, what percentage of their remaining offspring are expected to be white? A. 50% B. 75% C. about 66% D. about 90% E. 25% 3. Which two genotypes in an individual would be expressed as the same phenotype in a
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Unformatted text preview: diploid organism? A. Homozygous dominant and homozygous recessive B. Homozygous dominant and heterozygous C. Homozygous recessive and heterozygous 4. A test cross is designed to determine the genotype of a parent with the dominant tall phenotype. A test cross produces progeny that are 1±2 tall and 1±2 dwarf. What is the genotype of the parent? A. DD B. Dd C. dd 5. What ratio of offspring would be expected from a cross of individuals who are heterozygous for height and color? (Assume that tall is dominant to dwarf and green is dominant to yellow.)...
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