EBK CAMPBELL BIOLOGY IN FOCUS
EBK CAMPBELL BIOLOGY IN FOCUS
2nd Edition
ISBN: 8220101459299
Author: Reece
Publisher: PEARSON
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Chapter 11, Problem 3TYU

A man has six fingers on each hand and six toes on each foot. His wife and their daughter have the normal number of digits, Remember that extra digits is a dominant trait. What fraction of this couple's children would be expected to have extra digits?

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A man has six fingers on each hand and six toes on each foot.His wife and their daughter have the normal number of digits.Remember that extra digits is a dominant trait. What fractionof this couple’s children would be expected to have extra digits?
Unattached earlobes (E) are dominant over attached earlobes (e) [Figure (a) and (b)]. If a woman with unattached earlobes and a man with attached earlobes have children, what percentage of their children has the possibility of having unattached earlobes if the mother is homozygous for the trait?
Joan was born with six toes on each foot, a dominant trait called polydactyly. Two of her five siblings and her mother, but not her father, also has extra digits. What is Joan's genotype for the number-of-digits character?
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