EBK BIOLOGY
EBK BIOLOGY
6th Edition
ISBN: 9780134819150
Author: Maier
Publisher: VST
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Chapter 8, Problem 1AAATB

Two parents both have brown eyes, but they have two children with brown eyes and two with blue eyes. How is it possible that two people with the same eye color can have children with different eye color? If eye color in this family is determined by differences in genotype for a single gene with two alleles, what percentage of the children are expected to have blue eyes? If the ratio of brown to blue eyes in this family does not conform to expectations, why does this result not refute Mendelian genetics?

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For a recessive condition, two normal heterozygous individuals have children. What is the likelihood of their children being affected by this condition? What is the likelihood of their children being carriers without the condition? What is the likelihood of their asymptomatic children being carriers? Suppose that an individual with the condition has children with a heterozygous individual, what is the likelihood of their children being carriers?
What does a phenotype ratio of 3:1 among offspring in a monohybrid cross indicate?   The alleles that govern one trait assort into gametes together with the alleles that govern another trait.   The alleles that govern one trait assort into gametes independently of alleles that govern another trait.   It indicates that the alleles governing the phenotypes do not follow a Mendelian inheritance pattern.   It indicates that the alleles governing the phenotypes follow a Mendelian inheritance pattern.
What is the genotype of the father and mother? What is the phenotype of youngest son of the couple? What is the probability of the couple 6-7 having a normal child? Based from the pedigree where is the polydactyly trait can be found?
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