With typical cystic fibrous, the condition is caused by a single recessive allele. If a woman...
With typical cystic fibrous, the condition is caused by a single recessive allele. If a woman and her husband are both carriers and produce three children, how likely is it that:
A)All 3 children do NOT have cystic fibrous (not the trait)?
B) One or more children will have the disease?
Please include legends and punnet squares. SHOW THE WORK so I can finally understand this! Thanks.
Homework Answers
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With typical cystic fibrous, the condition is caused by a single
recessive allele. If a woman...
9. Cystic fibrosis is a genetic disease caused by an autosomal recessive allele at a single...
9. Cystic fibrosis is a genetic disease caused by an autosomal recessive allele at a single locus. In a survey of 100,000 people in Pennsylvania, 7 people had the disease. Assuming the population is in Hardy-Weinberg equilibrium, find: a. P: é o ö 10. How many people of 100,000 surveyed would you expect to be carriers of the cystic fibrosis allele?
6. Hemochromatosis is an inherited disease caused by a recessive allele. If a woman and her...
6. Hemochromatosis is an inherited disease caused by a recessive allele. If a woman and her husband, who are both carriers, have three children, what is the probability of each of the following? (a) All three children are of normal phenotype. (b) One or more of the three children have the disease. (c) All three children have the disease. (d) At least one child is phenotypically normal. (Note: It will help to remember that the probabilities of all possible outcomes...
Cystic fibrosis is an autosomal recessive disease caused by a mutation in a single gene with...
Cystic fibrosis is an autosomal recessive disease caused by a mutation in a single gene with two alleles. Suppose the frequency of cystic fibrosis in a population is 3%. Assuming the gene is in HW equilibrium, calculate the allele and genotype frequencies. If the population consists of 100 individuals, how many are carriers (but unaffected) for the cystic fibrosis allele?
Phenylketonuria is an inherited disease caused by a recessive allele. People with PKU can't break down...
Phenylketonuria is an inherited disease caused by a recessive allele. People with PKU can't break down the amino acid phenylalanine properly; this compound and a byproduct can accumulate in the blood to toxic levels, causing mental retardation. A man and a woman are both normal, but they are carriers of the disease. A) If they have children together, what proportion of the kids would be expected to have PKU? B) What proportion of their children would be normal?
4) Cystic fibrosis is a human disease caused by an autosomal recessive mutation. About 1 in...
4) Cystic fibrosis is a human disease caused by an autosomal recessive mutation. About 1 in 22 people in the human population are heterozygous carriers and have no symptoms of the disease. A woman who has a brother with CF marries a man who has no history of CF in his family a) What are the possible genotypes of the woman? b) What is the most likely genotype of the man? c) What is the percentage of offspring that would...
For each of these problems, be sure to justify your answer(s) by including an allele key,...
For each of these problems, be sure to justify your answer(s) by including an allele key, parental cross (genotypes), phenotypes, and the resulting Punnett square representing all possible mating of eggs and sperm. 1. Tom and his wife Julie are both carriers for cystic fibrosis, an autosomal recessive disease. What is the chance that their children will have cystic fibrosis and carriers? 2. In cattle, a dominant “Dexter” gene, combined with its recessive allele, results in abnormally short legs, while...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects one in every 500 African American children born in the U.S. One in every ten African Americans is a carrier for the recessive allels. Although sickle cell disease is caused by a single human gene, it is expressed through many different effects throughout the body. The presence of a recessive sickle-cell allele in humans causes the red blood cells to produce abnormal hemoglobin protein...
6. If you cross a woman with type A blood and a man with type B...
6. If you cross a woman with type A blood and a man with type B and both ha dominant and one recessive allele for blood type what are the possible genotypes of their offspring? Use the Punnett square below to help you determin etermine this. 7. Choroideremia is a disease that causes degeneration of the retina of the eye. The recessive allele that causes this condition is found on the X chromosome. Using the square below, cross a woman...
Ques 30-31. Tay-Sachs disease is caused by an allele, t, that is recessive to the normal...
Ques 30-31. Tay-Sachs disease is caused by an allele, t, that is recessive to the normal allele, T. A normal man and normal woman have three children, a normal son, a normal daughter, and a daughter with the disease. 30. The genotype of the normal woman is a) TT b) Tt c) tt d) a or b are possible e) b or c are possible 31. The probability that the normal son is a Tt carrier of the disease is...
albinism is caused by a recessive QUESTION 6 Albinism (lack of skin and hair pigmentation) is...
albinism is caused by a recessive
QUESTION 6 Albinism (lack of skin and hair pigmentation) is caused by a recessive autosomal allele. A woman and man both normally pigmented, have an albino child together. For this trait, what is the genotype of the albino child? O A. It is unknown, because not enough information is provided. O B. heterozygous O C. homozygous dominant OD.homozygous recessive O E. It depends on the environment that the child lives in. QUESTION 7 in...
9. Cystic fibrosis is a genetic disease caused by an autosomal recessive allele at a single locus. In a survey of 100,000 people in Pennsylvania, 7 people had the disease. Assuming the population is in Hardy-Weinberg equilibrium, find: a. P: é o ö 10. How many people of 100,000 surveyed would you expect to be carriers of the cystic fibrosis allele?
6. Hemochromatosis is an inherited disease caused by a recessive allele. If a woman and her husband, who are both carriers, have three children, what is the probability of each of the following? (a) All three children are of normal phenotype. (b) One or more of the three children have the disease. (c) All three children have the disease. (d) At least one child is phenotypically normal. (Note: It will help to remember that the probabilities of all possible outcomes...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects one in every 500 African American children born in the U.S. One in every ten African Americans is a carrier for the recessive allels. Although sickle cell disease is caused by a single human gene, it is expressed through many different effects throughout the body. The presence of a recessive sickle-cell allele in humans causes the red blood cells to produce abnormal hemoglobin protein...
6. If you cross a woman with type A blood and a man with type B and both ha dominant and one recessive allele for blood type what are the possible genotypes of their offspring? Use the Punnett square below to help you determin etermine this. 7. Choroideremia is a disease that causes degeneration of the retina of the eye. The recessive allele that causes this condition is found on the X chromosome. Using the square below, cross a woman...
albinism is caused by a recessive
QUESTION 6 Albinism (lack of skin and hair pigmentation) is caused by a recessive autosomal allele. A woman and man both normally pigmented, have an albino child together. For this trait, what is the genotype of the albino child? O A. It is unknown, because not enough information is provided. O B. heterozygous O C. homozygous dominant OD.homozygous recessive O E. It depends on the environment that the child lives in. QUESTION 7 in...
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