Which of the following statements about calico cats is true? Select all that apply.

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
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Which of the following statements about calico cats is true? Select all that apply.

Which of the following statements about calico cats is true? Select all that apply.
Orange sections of fur in calico cats will always be located on the same body locations.
а.
Calico cats are only females, except in cases of chromosomal number abnormalities.
b.
Orange fur sections are found in regions that are formed from cells that inactivated the X chromosome with the black allele of the fur color gene.
С.
Orange fur sections are found in regions that are formed from cells that inactivated the paternal X chromosome.
d.
Black and orange sections of fur on calico cats will always be the same size, since X chromosome inactivation always happens at the same stage of
e. development.
Transcribed Image Text:Which of the following statements about calico cats is true? Select all that apply. Orange sections of fur in calico cats will always be located on the same body locations. а. Calico cats are only females, except in cases of chromosomal number abnormalities. b. Orange fur sections are found in regions that are formed from cells that inactivated the X chromosome with the black allele of the fur color gene. С. Orange fur sections are found in regions that are formed from cells that inactivated the paternal X chromosome. d. Black and orange sections of fur on calico cats will always be the same size, since X chromosome inactivation always happens at the same stage of e. development.
Expert Solution
Step 1
female cats have paired sex chromosomes, XX, and male cats have XY sex chromosomes. The female cat, therefore, can have the orange mutant gene on one X chromosome and the gene for a black coat on the other.
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