26. In sheep, eye color is controlled by a single gene with two alleles. When a homozygousbrown-eyed sheep is crossed with a homozygous green-eyed sheep, blue-eyed offspringare produced. If the blue-eyed sheep are mated with each other, what percent of theiroffspring will most likely have brown eyes?(A) 0%(B) 25%(C) 50%(D) 75%(E) 100%27. In peas the trait for tall plants is dominant (T) and the trait for short plants is recessive (t).The trait for yellow seed color is dominant (Y) and the trait for green seed color isrecessive (y). A cross between two plants results in 296 tall yellow plants and 104 tallgreen plants. Which of the following are most likely to be the genotypes of the parents?(A) TTYY x TTYY(в) TТуу х ТTYу(C) TtYy x TIYY(D) TtYy x TTYY(E) TIYY x Ttyy28. In humans, red-green color blindness is a sexlinked recessive trait. If a man and a womanproduce a color-blind son, which of the following must be true?(A) The father is color-blind.(B) Both parents carry the allele for color blindness.(C) Neither parent carries the allele for color blindness.(D) The father carries the allele for color blindness.(E) The mother carries the allele for color blindness.29. In the pedigree below, squares represent males and circles represent females. Individualswho express a particular trait are represented by shaded figures. Which of the followingpatterns of inheritance best explains the transmission of the trait?(A) Sex linked dominant(B) Sex linked recessive(C) Autosomal recessive(D) Autosomal dominant(E) Incompletely dominant30. If the father has blood type AB, the mother has blood type B, a child with blood type Awhich of the following statements is correct about the mother?(A) She contributes an IB allele, which is recessive to the father's IA allele.(B) She contributes an i allele which is recessive to the father's IA allele.(C) She contributes an IB allele which is codominant to the father's IA allele.(D) She contributes an allele that is codominant to the father's IB allele.(E) She is homozygous for the IB allele.

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Description: 26. In sheep, eye color is controlled by a single gene with two alleles. When a homozygousbrown-eyed sheep is crossed with a homozygous green-eyed sheep, blue-eyed offspringare produced. If the blue-eyed sheep are mated with each other, what percent

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26. In sheep, eye color is controlled by a single gene with two alleles. When a homozygous brown-eyed sheep is crossed with a homozygous green-eyed sheep, blue-eyed offspring are produced. If the blue-eyed sheep are mated with each other, what percent of their offspring will most likely have brown eyes? (A) 0% (B) 25% (C) 50% (D) 75% (E) 100%

26. In sheep, eye color is controlled by a single gene with two alleles. When a homozygous brown-eyed sheep is crossed with a homozygous green-eyed sheep, blue-eyed offspring are produced. If the blue-eyed sheep are mated with each other, what percent of their offspring will most likely have brown eyes? (A) 0% (B) 25% (C) 50% (D) 75% (E) 100%

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 7RQ: Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring...

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