1.What are the phenotypes of the offspring that results from a cross between snapdragon plants that produce red (RR) and pink (Rr) flowers? (Incomplete dominance) * a. 75% red, 25% pink b. 50% red, 50% pink c. 50% red, 25% pink, 25% white d. 75% pink, 25% red
1.What are the phenotypes of the offspring that results from a cross between snapdragon plants that produce red (RR) and pink (Rr) flowers? (Incomplete dominance) * a. 75% red, 25% pink b. 50% red, 50% pink c. 50% red, 25% pink, 25% white d. 75% pink, 25% red
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1.What are the phenotypes of the offspring that results from a cross between snapdragon plants that produce red (RR) and pink (Rr) flowers? (Incomplete dominance) *
a. 75% red, 25% pink
b. 50% red, 50% pink
c. 50% red, 25% pink, 25% white
d. 75% pink, 25% red
2. In Dalmatian dogs, the spotted condition (S) is dominant over non-spotted (s). A litter of 8 pups were found—four spotted and four non-spotted. Based on the appearance of the pups, what are the genotypes of the parents? *
a. Ss and Ss
b. SS and ss
c. Ss and ss
d. ss and ss
3.The allele for brown eye (B) is dominant to that of blue eye (b). A brown-eyed man with a blue-eyed mother marries a blue-eyed woman. What is the probability that the first child is blue-eyed? *
a. 25%
b. 75%
c. 50%
d. 100%
4.The gene for green seed coat (G) is dominant to the gene for yellow seed coat (g). A plant with a yellow seed coat is crossed with a plant with a green seed coat. Eight of the offspring had yellow seed coats and eight had green seed coats. What are the genotypes of the offspring with green seed coat? *
a. ½ gg and ½ Gg
b. all Gg
c. all GG
d. ½ GG and ½ Gg
5.24-26. Brown coat is dominant to white coat in cattle. What is the phenotypic ratio of the possible offspring produced in a cross between two heterozygous brown-coated cattle? *
a. 3 brown: 1 white
b. 3 white: 1 brown
c. 2 brown: 2 white
d. all white coated
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