This is a probability question regarding punnet squares: Lets say I do a cross for a...
This is a probability question regarding punnet squares:
Lets say I do a cross for a sex-linked recessive gene and my results are: 2 girls, 2 boys. Of the boys, only 1 is affected.
The question was: What is the probability the child will be a boy and affected?
The answer was: P(XY) * P(aa) = 1/2*1/2= 1/4
But what if the question was: Of the boys that are born, what is the probability they will be affected? Would the answer be 50% in this case or still 25%?
Similarily, if there were purple:white phenotypes in a 3:1 ratio, and it asked me, of the purple flowers, what is the probability they are homozygous. And 1 out if 3 purple is PP. Then my probability is 1/3? Or is it 1/4(PP)*3/4(All Purple)?
Thank you!
Homework Answers
1. Boys that are born - totally 2 boys are borned.
In that 1 will be affected.
So, out of 2 boys, 1 is affected
P = 1/2 = 50%
2. In purple flowers, what is the probability they are homozygous.
Purple flower = PP, Pp, Pp = 3
In that only one is homozygous PP = 1
So, out of 3 only one is homozygous
P = 1/3
Add Answer to:
This is a probability question regarding punnet
squares:
Lets say I do a cross for a...
please answer 13 in detail and drawings of small punnet squares. This question was already posted...
please answer 13 in detail and drawings of small punnet squares.
This question was already posted on Chegg multiple times, but they
do not draw out the punnet squares or calculations.
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Use the interactive Punnet Squares Level 2 to answer the following questions. Suppose the parents indicated...
Use the interactive Punnet Squares Level 2 to answer the following questions. Suppose the parents indicated in the interactive produced 208 peas. Determine the expected number of yellow and wrinkled offspring Number Now suppose one of the pea plants is homozygous recessive for both genes, resulting in the cros Yy Rrxyy IT. Calculate the percentage of yellow and wrinkled offspring Number Suppose one of the pea plants is homozygous recessive for seed color, resulting in the cross Yy Rr xyy...
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Can the rest be answered please the bottom 2. Pascal's Triangle (2) 1. row 4 3....
Can the rest be answered please the bottom
2. Pascal's Triangle (2) 1. row 4 3. Indicate the probability of each of the following Four girls he: 0lezsOne girl, three boys h:4 Three girls, one boy aie: '4 Four boys Two girls, two boys p.3/8 : 062s 4. The probability of 3 girls & 3 boys in a family unit? 3. Families consisting of five children (1) a. What is the expected sex ratio? 4. Heredity (1) a. For a...
29 Principles of Probability first developed in Section I1-1. Finally, you saw that if a 1:1...
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please answer 13 in detail and drawings of small punnet squares.
This question was already posted on Chegg multiple times, but they
do not draw out the punnet squares or calculations.
U ! 2 0.06 0.125 0.06 0.125 0.25 0.125 0.06 96 3:31 H Linked 7.56% Long tails, Black cout, 18,57 0.06 gene (16.5% Long tails, tancoat + 13. In tomatoes, dwarf (d) is recessive to tall (D) and opaque leaves (op) are recessive to green leaves (Op). The loci...
BIO 340 Activity # 3: Trihybrid crosses, probability, and pedigrees (PAGE 1 of 2) Name (Last, First): 1. In garden pea plants, purple flowers (P) are dominant to white flowers (p), and full pod shape (F) is dominant to constricted pod shape (f). If two heterozygous plants (PpFf) are crossed, what are the potential genotypes and phenotypes that can be expected in the offspring? What is the genotype of the parents? х — What are the gametes for each parent?...
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Sex Linked Traits 4. Assume you are a genetic counselor and a couple comes to you for counseling They want to know if there is any chance that their first baby might have muscular dystrophy. M.D. is a sex linked recessive trait. Neither of the parents has M.D. but the wife's father has M.D. Prove your answer by showing the genotypes and phenotypes of the parents, grandparents and possible offspring. Parents Fill in the boxes Genotype Phenotype Possible Genotypes or...
1. Circle, underline or write in all of the homozygous genotypes listed below. og Aa AA 2. In pea plants, the dominant allele Pencodes purple flowers and the recessive allele p encodes white flowers. A plant with a pp genotype is crossed with a plant with a Pp genotype. What is the expected ratio of phenotypes in the offspring? Use a Punnett square to justify your answer. (0.5 points) 3. A mother has type A blood and she has a...
Use the interactive Punnet Squares Level 2 to answer the following questions. Suppose the parents indicated in the interactive produced 208 peas. Determine the expected number of yellow and wrinkled offspring Number Now suppose one of the pea plants is homozygous recessive for both genes, resulting in the cros Yy Rrxyy IT. Calculate the percentage of yellow and wrinkled offspring Number Suppose one of the pea plants is homozygous recessive for seed color, resulting in the cross Yy Rr xyy...
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In one species of butterfly, there are alleles for red color and blue color, but neither of these alleles is dominant over the other. When a butterfly of this species has both of these alleles, its color is purple In some breeds of cows, there are alleles for brown color and white color. Neither of these alleles is dominant over the other. When a cow of one of these breeds has both of these alleles, its...
Can the rest be answered please the bottom
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29 Principles of Probability first developed in Section I1-1. Finally, you saw that if a 1:1 ratio, similar to that for heads and tails on coins, is assumed for the binth of boys and girls in human populations, the same combinations would be expected for babies as for coins (compare Section I1-4 with Section II1-5) Expectations for various combinations in groups of given size (n) can be obtained mathemati- cally Mendel and others recognized that combinations can be calculated by...
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