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C27. A sex-influenced trait in humans affects the length of the index finger. A short allele is dominant in males and recessive in females. Heterozygous males have an index finger that is significantly shorter than the ring finger. In contrast, the long allele is dominant in females and recessive in males. The gene affecting index finger length is located on an autosome. A female with short fingers has five children with a male who has long index fingers. The order of birth is: female, male, male, female, male. The oldest female offspring and a male with long index fingers have one male offspring. Draw the pedigree for this family. Indicate the phenotypes of every individual (filled symbols for individuals with short index fingers and open symbols for individuals with long index fingers.

C27. A sex-influenced trait in humans affects the length of the index finger. A short allele is dominant in males and recessive in females. Heterozygous males have an index finger that is significantly shorter than the ring finger. In contrast, the long allele is dominant in females and recessive in males. The gene affecting index finger length is located on an autosome. A female with short fingers has five children with a male who has long index fingers. The order of birth is: female, male, male, female, male. The oldest female offspring and a male with long index fingers have one male offspring. Draw the pedigree for this family. Indicate the phenotypes of every individual (filled symbols for individuals with short index fingers and open symbols for individuals with long index fingers.

Human Anatomy & Physiology (11th Edition)
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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C27. A sex-influenced trait in humans affects the length of the index finger. A short allele is dominant in males and recessive in females. Heterozygous males have an index finger that is significantly shorter than the ring finger. In contrast, the long allele is dominant in females and recessive in males. The gene affecting index finger length is located on an autosome. A female with short fingers has five children with a male who has long index fingers. The order of birth is: female, male, male, female, male. The oldest female offspring and a male with long index fingers have one male offspring. Draw the pedigree for this family. Indicate the phenotypes of every individual (filled symbols for individuals with short index fingers and open symbols for individuals with long index fingers.
Transcribed Image Text:C27. A sex-influenced trait in humans affects the length of the index finger. A short allele is dominant in males and recessive in females. Heterozygous males have an index finger that is significantly shorter than the ring finger. In contrast, the long allele is dominant in females and recessive in males. The gene affecting index finger length is located on an autosome. A female with short fingers has five children with a male who has long index fingers. The order of birth is: female, male, male, female, male. The oldest female offspring and a male with long index fingers have one male offspring. Draw the pedigree for this family. Indicate the phenotypes of every individual (filled symbols for individuals with short index fingers and open symbols for individuals with long index fingers.
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