o a sex-linked (X-linked) Ihat kinds of offfcpring would

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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In some cats, black color is due to a sex-linked (X-linked) (chapter 15) recessive gene (X°); the dominant allele (XB) produces orange color. The
heterozygote (XBXº) is calico. What kinds of offspring would be expected from the cross of an orange male and a black female?
black females, calico males
calico females, black males
orange females, black males
O black females, orange males
Transcribed Image Text:In some cats, black color is due to a sex-linked (X-linked) (chapter 15) recessive gene (X°); the dominant allele (XB) produces orange color. The heterozygote (XBXº) is calico. What kinds of offspring would be expected from the cross of an orange male and a black female? black females, calico males calico females, black males orange females, black males O black females, orange males
In cattle, roan color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. When two roan cattle
are crossed, the phenotypes of the progeny are found to be in the ratio of one red: two roan: one white. Which of the following crosses could produce
the highest percentage of roan cattle?
red x roan
white x roan
red x white
roan x roan
Transcribed Image Text:In cattle, roan color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. When two roan cattle are crossed, the phenotypes of the progeny are found to be in the ratio of one red: two roan: one white. Which of the following crosses could produce the highest percentage of roan cattle? red x roan white x roan red x white roan x roan
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