A man and his wife are both heterozygous for brown eyes. They have six children all of whom ve blue eyes. A) How is this explained? B) What are the chances that their next child will have brown eyes? C) What are the chances that their next child will have blue eyes?

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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4. One type of beetle found in fields where corn is grown can have either a grey outer shell or a black
outer shell. The allele for the grey outer shell (G) is dominant over the allele for the black outer shell
(g).
A. Predict the ratio of grey:black in the offspring if the genotypes of the parents were:
Gg x GG
B. Predict the ratio of grey:black offspring if the genotypes of the parents were:
Gg x gg
5. In cats the allele for short hair is dominant over the allele for long hair. A short haired male
and long haired female have kittens. Eight kittens have short hair and 3 have long hair.
A) What are genotypes of the parents?
B) What is the expected ratio of short to long haired cats?
C) What is - the actual ratio in this problem?
6. A man and his wife are both heterozygous for brown eyes. They have six children all of whom
have blue eyes.
A) How is this explained?
B) What are the chances that their next child will have brown eyes?
C) What are the chances that their next child will have blue eyes?
Page 3
Transcribed Image Text:4. One type of beetle found in fields where corn is grown can have either a grey outer shell or a black outer shell. The allele for the grey outer shell (G) is dominant over the allele for the black outer shell (g). A. Predict the ratio of grey:black in the offspring if the genotypes of the parents were: Gg x GG B. Predict the ratio of grey:black offspring if the genotypes of the parents were: Gg x gg 5. In cats the allele for short hair is dominant over the allele for long hair. A short haired male and long haired female have kittens. Eight kittens have short hair and 3 have long hair. A) What are genotypes of the parents? B) What is the expected ratio of short to long haired cats? C) What is - the actual ratio in this problem? 6. A man and his wife are both heterozygous for brown eyes. They have six children all of whom have blue eyes. A) How is this explained? B) What are the chances that their next child will have brown eyes? C) What are the chances that their next child will have blue eyes? Page 3
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