*Cystic fibrosis is a rare autosomal recessive condition. phenotypically normal man whosefather had cystic fibrosis marries a phenotypically normal woman from outside the family.²a) Draw the pedigree as far as described.b) If the frequency of heterozygotes in the general population is 1/50, what is theprobability that the couple's first child will have cystic fibrosis?c) If the first child does have cystic fibrosis, what is the probability that the second childwill be normal?

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Description: *Cystic fibrosis is a rare autosomal recessive condition. phenotypically normal man whosefather had cystic fibrosis marries a phenotypically normal woman from outside the family.²a) Draw the pedigree as far as described.b) If the frequency of hetero

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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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*Cystic fibrosis is a rare autosomal recessive condition. phenotypically normal man whose
father had cystic fibrosis marries a phenotypically normal woman from outside the family.²
a) Draw the pedigree as far as described.
b) If the frequency of heterozygotes in the general population is 1/50, what is the
probability that the couple's first child will have cystic fibrosis?
c) If the first child does have cystic fibrosis, what is the probability that the second child
will be normal?

Expert Solution

Step 1: Introduction:

Mendel proposed three laws based on his research. His research provided a picture of the independent assortment of genes, their allelic forms, and their dominance and recessivity.

Dominant genotypes are those that can manifest themselves in the phenotype . Recessive traits are genotypes that, despite their presence, do not manifest in the phenotype.

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