4.) In dogs, there is a hereditary deafness caused by a recessive gene (d). A kennel owner has a male dog that she wants to use for breeding purposes if possible. The dog can hear, so the owner knows his genotype is either DD or Dd. If the dog's genotype is Dd, the owner does not wish to use him for breeding so that the deafness gene will not be passed on. This can be tested by breeding the dog to a deaf female (dd). Draw the Punnett squares to illustrate these two possible crosses. List all genotypes and phenotypes showing how many of the offspring would be normal and deaf.
4.) In dogs, there is a hereditary deafness caused by a recessive gene (d). A kennel owner has a male dog that she wants to use for breeding purposes if possible. The dog can hear, so the owner knows his genotype is either DD or Dd. If the dog's genotype is Dd, the owner does not wish to use him for breeding so that the deafness gene will not be passed on. This can be tested by breeding the dog to a deaf female (dd). Draw the Punnett squares to illustrate these two possible crosses. List all genotypes and phenotypes showing how many of the offspring would be normal and deaf.
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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Transcribed Image Text:4.) In dogs, there is a hereditary deafness caused by a recessive gene (d). A
kennel owner has a male dog that she wants to use for breeding purposes if
possible. The dog can hear, so the owner knows his genotype is either DD or
Dd. If the dog's genotype is Dd, the owner does not wish to use him for
breeding so that the deafness gene will not be passed on. This can be tested
by breeding the dog to a deaf female (dd). Draw the Punnett squares to
illustrate these two possible crosses. List all genotypes and phenotypes
showing how many of the offspring would be normal and deaf.
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