Homework Answers
1. This is a X linked dominant trait. The affected father is not transferring the disease to male children but to the females. ( Males children acquire X chromosome from the mother ) Since the female child gets affected X chromosome from the father and unaffected X chromosome from mother and still shows the phenotype, the trait has to be dominant.
2. Genotype of I-1 - XaY ( Xa is affected allele)
Genotype of I-2 - XX
3. 50% chance
Genotype of II-5 - XaX and II-6 is XY
A cross between then gives : XaX XaY XX and XY individuals. Since it is a dominant trait offsprings having the affected allele shows the phenotype.
There fore there is a 50% chance that the next child is affected.
4. Since it is a dominant trait if unaffected people or cousins marry and have children , none of them will be affected. The chances are zero.
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4. What is the chance of the next child of individuals 1-3 and II-4 is affected?...
Is this a dominant or recessive trait? Explain why. What are the genotypes of l-1 and...
Is this a dominant or recessive trait? Explain why. What are the genotypes of l-1 and l-2? What is the chance of the next child of individuals lll-5 and lll-6 is affected? (More Challenging) IV-1 marries someone with the trait, what is the chance of their child being affected?
answer all questions to get a thumbs up 4. A woman has a Widow's peak (dominant),...
answer all questions to get a thumbs up
4. A woman has a Widow's peak (dominant), but she does not know her genotype. She marries a man who has a straight hairline and they have 13 children. Nine have widow's peaks and four have straight hairlines a. What are the genotypes of the parents? b. What are the genotypes of the children? C. Explain how you arrived at your answers. G host 5. In humans, Phenylketonuria (PKU) and Lactose intolerance...
7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in...
7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in a plant is controlled by the allele Rand white flower.com by the allele, which flower color is dominant? and white flower color is controlled 9. If a heterozygous purple flowered plant is crossed with a white flowered plant w phenotypes of their offspring? as 10. If the offspring of a cross are 50 purple-flowered plants and 14 white-flowered plants, what are the genotypes of...
Alpha thalassemia is a recessive trait in humans. Affected individuals suffer from anemia, weakness, and fatigue....
Alpha thalassemia is a recessive trait in humans. Affected individuals suffer from anemia, weakness, and fatigue. A man and a woman are unaffected but are heterozygous for the normal and mutant alleles i.e they are carries. Based on mendel's law 1/4 of the children are unaffected. If they have five children, what is the probability of them having one affected and four unaffected children, in any order?
1. If a child has PKU, what is its genotype? What are the genotypes of its...
1. If a child has PKU, what is its genotype? What are the genotypes of its parents (use A for the dominant allele and a for the recessive allele)? 2. Is it possible to count the number of PKU carriers in a population? Why or why not? 3. If 50 of the 500,000 people in Atlanta have PKU, how many people are carriers? 4. In Atlanta, if a woman with PKU marries a man without symptoms of PKU, what is...
if 1/40,000 individuals are affected by an autosomal recessive disorder in a population in HWE, what is the probability a carrier and someone with no family history will have an affected child?
if 1/40,000 individuals are affected by an autosomal recessive disorder in a population in HWE, what is the probability a carrier and someone with no family history will have an affected child?
If the pedigree shown is for an autosomal recessive trait, what are the genotypes of individuals...
If
the pedigree shown is for an autosomal recessive trait, what are
the genotypes of individuals II-1, II-6 and II-9, where A- is not
kooky and aa is kooky.
| 11 2 3 Ooh 14 5 6
Caculating probabilities with human pedigree charts Homework Unanswered If individuals IV.4 and IV.5 have a child...
Caculating probabilities with human pedigree charts Homework Unanswered If individuals IV.4 and IV.5 have a child that is unaffected, what is the probability that the child is still a carrier for the recessive allele? 1 2 2 3 4 5 6 7 1 II 12 3 10 4 5 6 7 8 9 11 IV 1 2 3 4 5 6 7 8 100% В 50% 75% C 25% E 0%
this is all that im given Question 3: (4 points) Consider the following pedigree: O O...
this is all that im given
Question 3: (4 points) Consider the following pedigree: O O 1 2 3 4 5 Characterize each of the following modes of inheritance as: Impossible, Possible, or Most likely. Justify your answers. a. Autosomal dominant b. Autosomal recessive X-linked dominant d. X-linked recessive e. Y-linked f. Going with the most likely mode of inheritance .... Assume individual V-1 marries a phenotypically normal male. What is the likelihood that their first child is affected with...
QUESTION 9 5 pe If the characteristic depicted in the pedigree below is rare and subject...
QUESTION 9 5 pe If the characteristic depicted in the pedigree below is rare and subject to complete penetrance, it is likely to be X-linked recessive? 5 6 7 -OOO No, because individuals ll-2 and 11-4 are not affected No, because individuals 111-4 and III-6 are not affected Yes, because individuals III-4 and III-6 are not affected Yes, because only females are affected in generation 11 1. The gene for cystic fibrosis (normal dominant allele CF and abnormal recessive allele...
Is this a dominant or recessive trait? Explain why. What are the genotypes of l-1 and l-2? What is the chance of the next child of individuals lll-5 and lll-6 is affected? (More Challenging) IV-1 marries someone with the trait, what is the chance of their child being affected?
answer all questions to get a thumbs up
4. A woman has a Widow's peak (dominant), but she does not know her genotype. She marries a man who has a straight hairline and they have 13 children. Nine have widow's peaks and four have straight hairlines a. What are the genotypes of the parents? b. What are the genotypes of the children? C. Explain how you arrived at your answers. G host 5. In humans, Phenylketonuria (PKU) and Lactose intolerance...
7. If offspring exhibit a 3:1 phenotypic are the parents' genotypes? f purple flower color in a plant is controlled by the allele Rand white flower.com by the allele, which flower color is dominant? and white flower color is controlled 9. If a heterozygous purple flowered plant is crossed with a white flowered plant w phenotypes of their offspring? as 10. If the offspring of a cross are 50 purple-flowered plants and 14 white-flowered plants, what are the genotypes of...
If
the pedigree shown is for an autosomal recessive trait, what are
the genotypes of individuals II-1, II-6 and II-9, where A- is not
kooky and aa is kooky.
| 11 2 3 Ooh 14 5 6
Caculating probabilities with human pedigree charts Homework Unanswered If individuals IV.4 and IV.5 have a child that is unaffected, what is the probability that the child is still a carrier for the recessive allele? 1 2 2 3 4 5 6 7 1 II 12 3 10 4 5 6 7 8 9 11 IV 1 2 3 4 5 6 7 8 100% В 50% 75% C 25% E 0%
this is all that im given
Question 3: (4 points) Consider the following pedigree: O O 1 2 3 4 5 Characterize each of the following modes of inheritance as: Impossible, Possible, or Most likely. Justify your answers. a. Autosomal dominant b. Autosomal recessive X-linked dominant d. X-linked recessive e. Y-linked f. Going with the most likely mode of inheritance .... Assume individual V-1 marries a phenotypically normal male. What is the likelihood that their first child is affected with...
QUESTION 9 5 pe If the characteristic depicted in the pedigree below is rare and subject to complete penetrance, it is likely to be X-linked recessive? 5 6 7 -OOO No, because individuals ll-2 and 11-4 are not affected No, because individuals 111-4 and III-6 are not affected Yes, because individuals III-4 and III-6 are not affected Yes, because only females are affected in generation 11 1. The gene for cystic fibrosis (normal dominant allele CF and abnormal recessive allele...
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