20 In chickens, the sex-determining chromosomes are called Z and W. Male roosters have two Z chromosomes, and female hens have one Z chromosome and one W chromosome. A gene located on the Z chromosome controls th speed of feather growth in young chicks. The allele for slow-feathering is dominant to the allele for fast-feathering During the first few days after hatching, chicks with different feathering speed phenotypes have visually different feather lengths. Chicken breeders often take advantage of this visual difference to quickly determine the sex of newly-hatched chicks. To do this, the breeders have to use parents with specific feathering speed genotypes. Which of the following crosses will result in chicks whose sex can be determined based on their feathering speed phenotype? a cross between a slow-feathering female and a true-breeding, slow-feathering male a cross between a fast-feathering female and a true-breeding, slow-feathering male a) b) c) a cross between a fast-feathering female and a fast-feathering male d) a cross between a slow-feathering female and a fast-feathering male Boş bırak
20 In chickens, the sex-determining chromosomes are called Z and W. Male roosters have two Z chromosomes, and female hens have one Z chromosome and one W chromosome. A gene located on the Z chromosome controls th speed of feather growth in young chicks. The allele for slow-feathering is dominant to the allele for fast-feathering During the first few days after hatching, chicks with different feathering speed phenotypes have visually different feather lengths. Chicken breeders often take advantage of this visual difference to quickly determine the sex of newly-hatched chicks. To do this, the breeders have to use parents with specific feathering speed genotypes. Which of the following crosses will result in chicks whose sex can be determined based on their feathering speed phenotype? a cross between a slow-feathering female and a true-breeding, slow-feathering male a cross between a fast-feathering female and a true-breeding, slow-feathering male a) b) c) a cross between a fast-feathering female and a fast-feathering male d) a cross between a slow-feathering female and a fast-feathering male Boş bırak
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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Hello, i understand the question, but i only need to know which option is right, no need for explanation. I mean jsut say which option, thanks in advance.
Transcribed Image Text:20 In chickens, the sex-determining chromosomes are called Z and W. Male roosters have two Z chromosomes, and
female hens have one Z chromosome and one W chromosome. A gene located on the Z chromosome controls the
speed of feather growth in young chicks. The allele for slow-feathering is dominant to the allele for fast-feathering.
During the first few days after hatching, chicks with different feathering speed phenotypes have visually different
feather lengths. Chicken breeders often take advantage of this visual difference to quickly determine the sex of
newly-hatched chicks. To do this, the breeders have to use parents with specific feathering speed genotypes.
Which of the following crosses will result in chicks whose sex can be determined based on their feathering speed
phenotype?
a cross between a slow-feathering female and a true-breeding, slow-feathering male
a cross between a fast-feathering female and a true-breeding, slow-feathering male
a)
b)
C) a cross between a fast-feathering female and a fast-feathering male
d)
a cross between a slow-feathering female and a fast-feathering male
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