+ + Coat color in cats is determined by genes at several different loci. At one locus on the X chromosome, one allele (X) encodes black fur and another allele (X) encodes orange fur. Females can be black (XX), orange (XX), or a mixture of orange and black called tortoiseshell (X X). Males are either black (XY) or orange (XY). Bill has a female tortoiseshell cat named Patches. One night, Patches escapes from Bill's house, spends the night out, and mates with a stray male. Patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. What are the genotypes of Patches, the stray male, and the kittens? Patches stray male orange male kitten black male kitten tortoiseshell female kitten orange female kitten X Y Answer Bank X X + X X +0 X X + X Y

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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Coat color in cats is determined by genes at several different loci. At one locus on the X chromosome, one allele (X` ) encodes
black fur and another allele (X) encodes orange fur. Females can be black (X X ), orange (X X ), or a mixture of orange and
black called tortoiseshell (X X ). Males are either black (XY) or orange (XY).
O
Bill has a female tortoiseshell cat named Patches. One night, Patches escapes from Bill's house, spends the night out, and mates
with a stray male. Patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females,
and one orange female.
What are the genotypes of Patches, the stray male, and the kittens?
Patches
stray male
orange male kitten
black male kitten
tortoiseshell female kitten
orange female kitten
+
X Y
Answer Bank
0 0
X X
+ +
X X
+0
X X
0
X Y
Transcribed Image Text:0 + + O O Coat color in cats is determined by genes at several different loci. At one locus on the X chromosome, one allele (X` ) encodes black fur and another allele (X) encodes orange fur. Females can be black (X X ), orange (X X ), or a mixture of orange and black called tortoiseshell (X X ). Males are either black (XY) or orange (XY). O Bill has a female tortoiseshell cat named Patches. One night, Patches escapes from Bill's house, spends the night out, and mates with a stray male. Patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. What are the genotypes of Patches, the stray male, and the kittens? Patches stray male orange male kitten black male kitten tortoiseshell female kitten orange female kitten + X Y Answer Bank 0 0 X X + + X X +0 X X 0 X Y
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