Cystic fibrosis (CF) is an inherited chronic disease that affects the lungs and digestive system ofabout 30,000 children and adults in the United States. It is caused by a recessive allele that encodesa defective chloride channel. Genetic screening has determined that two parents are carriers(heterozygous). What is the probability that they have a child with CF?Rabbits with the genotype CC° are black, heterozygous rabbits CCW appear brown, and rabbits thatare CWC" have white fur. VWhat is the phenotypic and genotypic ratio of the offspring of a crossbetween a brown and a white rabbit?Using your book, determine the probability of each blood type in the offspring of a heterozygousman who has type B blood, and a heterozygous woman who has type A blood.A woman who is type O gives birth to a baby who is also type 0. In a paternity case, a man claimsthat he cannot be the father because he has type A blood. Is he right? Explain.

Name: Cystic fibrosis (CF) is an inherited chronic disease that affects the
Uploaded: 2024-03-20T06:42:55.000Z
Channel: Bartleby
Description: Cystic fibrosis (CF) is an inherited chronic disease that affects the lungs and digestive system ofabout 30,000 children and adults in the United States. It is caused by a recessive allele that encodesa defective chloride channel. Genetic screening

1. R donates allele with cystic fibrosis r donates alleles without cystic fibrosis or normal allele Unaffected carrier father × Unaffected carrier mother Parents- Rr ×Rr Gametes- R, r and R, r Punnett square- R r R RR Rr r Rr rr RR = unaffected, 1/4 chance Rr= Carrier, 2/4 or 1/2 rr= affected, 1/4 chance So, they have 25% probability that they have children with cystic fibrosis. Kindly, repost other questions.