11) In mendals experiments, he bred garden peas to follow how traits are inherit
ID: 69503 • Letter: 1
Question
11) In mendals experiments, he bred garden peas to follow how traits are inherited between generations. Which of the following best describes the experimental design (read carefully)? a) He crossed two true-breeding P plants with contrasting traits to yield the F1 generation, which was then self-fertilized to produce F2 generation. b) He hybrided two P plants with contrasting traits to yield the F1 generation, which was then hybridized to one of the parents to produce the F2 generation. c) He crossed two true-breeding P plants with contrasting traits to yield the F1 generation, which was then hybridized to one of the P plants to produce the F2 generation d) None of the above.
12) In a monohybrid cross for in mice for fur color black (B) versus white (b), the black allele is completely dominant over white. What is the expected genotype ratio of a single off spring from a male heterozygous and female heterozygote? a) 1:2:1; BB:Bb:bb b) 1:2:1; Bb: BB: bb c) 1:1; BB:bb d) 3:1; BB;bb e) All off springs are Bb
13) Suppose a single gene is responsible for having a widow’s peak. A widow’s peak is a dominant trait. A man with a widow’s peak has a child with a woman who does not have a widow’s peak. Their child does not have a widow’s peak. a) The father must be homozygous for the widow’s peak allele. b) The father must be heterozygous for the widow’s peak allele. c) The mother must be heterozygous for the widow’s peak allele. d) Both parents are heterozygous for the widow’s peak allele, the just show carrying degrees of a widow’s peak. e) None of the above.
14) A man who heterozygous for widow’s peak and homozygous for brown eyes marries a woman without a widows peak and heterozygous for brown eyes have a child. Widow’s peak is a dominant allele and having brown eyes is dominant to having blue. Which statement about the offspring is false? a) There is the possibility to have a child who is heterozygous for both traits. b) There is a 50% chance that the child will not have widows peak. c) There is no chance that the child will have blue eyes. d) There are only 2 potential genotype combinations. e) There are only 2 potential phenotypic combinations.
Explanation / Answer
Answers:
Q11). a
Q12). a
Q13). b
Q14). d
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