Question

6. Mating of two organisms produces a 1:1 ratio of genotypes in the progeny. The parental genotypes are: A. AA x AA B. AA x Aa C. AA x aa D. Aa x Aa E. aa x aa 7. Consider a gene with three alleles: A1, A2, and A3. In a cross between two individuals with genotypes A1A2 and A2A3, what is the probability that a particular offspring will have the A2 allele? A. 0 B. 1/4 C. 1/2 D. 3/4 E. 1 8. A monohybrid cross is carried out. If the recessive homozygote always dies at birth, what fraction of the progeny will be a dominant homozygote in F2? A. 1/4 B. 1/3 C. 1/2 D. 2/3 E. 3/4

          6. Mating of two organisms produces a 1:1 ratio of genotypes in the progeny. The parental genotypes are:
A. AA x AA
B. AA x Aa
C. AA x aa
D. Aa x Aa
E. aa x aa
7. Consider a gene with three alleles: A1, A2, and A3. In a cross between two individuals with genotypes A1A2 and A2A3, what is the probability that a particular offspring will have the A2 allele?
A. 0
B. 1/4
C. 1/2
D. 3/4
E. 1
8. A monohybrid cross is carried out. If the recessive homozygote always dies at birth, what fraction of the progeny will be a dominant homozygote in F2?
A. 1/4
B. 1/3
C. 1/2
D. 2/3
E. 3/4

$6. Mating of two organisms produces a 1:1 ratio of genotypes in the progeny. The parental genotypes are: A. AA x AA B. AA x Aa C. AA x aa D. Aa x Aa E. aa x aa 7. Consider a gene with three alleles: A1, A2, and A3. In a cross between two individuals with genotypes A1A2 and A2A3, what is the probability that a particular offspring will have the A2 allele? A. 0 B. 1/4 C. 1/2 D. 3/4 E. 1 8. A monohybrid cross is carried out. If the recessive homozygote always dies at birth, what fraction of the progeny will be a dominant homozygote in F2? A. 1/4 B. 1/3 C. 1/2 D. 2/3 E. 3/4$

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