Homework Answers
1. Ff X Ff
| F | f | |
| F | FF Freckles | Ff Freckles |
| f | Ff Freckles | ff No Freckles |
The probability of Freckles = 3/4
2. Brown eye BB X bb male
All are Brown eye Bb
The probability of blue progeny = 0%
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In humans, freckles (F) is dominant to no freckles (f). What is the probability of having...
In humans, the presence of freckles (F) is dominant to the absence of freckles (f). If...
In humans, the presence of freckles (F) is dominant to the absence of freckles (f). If two heterozygous individuals mate, what is the probability of having a child with NO freckles a. 100% b. 50% c. 25% d. 75%
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles...
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles (1) is recessive. Assume that a homozygous recessive man and a heterozygous woman have a child. a. What is the woman's phenotype? 0.5 point b. Show the Punnett square for the cross. 1 point c. What is the child's probability of having freckles? 0.5 point
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What...
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What is the genotype of a brown-eyed woman who has a blue-eyed child? A)bb -B)Bb С)ВВ D)BBB E) BbBb 8) The ability to roll the edges of the tongue upward in a U-shape is inherited as a dominant allele at a single gene locus, Which of the following genotypes would produce an individual that can roll their tongue? A)TT only B)Tt only C) only D)TT...
5. In humans, earlobes that are suspended are dominant over those that are attached. If a...
5. In humans, earlobes that are suspended are dominant over those that are attached. If a mother has suspended earlobes (but her mother did not) and the father has attached earlobes, what are the chances that their first child will have attached earlobes? What about the fourth child? 6. A brown-eyed man whose mother was blue-eyed married a brown-eyed woman whose father had blue eyes. Assume brown to be dominant over blue. What is the probability that the couple will...
For the purpose of this problem assume that in humans eye color is controlled by a...
For the purpose of this problem assume that in humans eye color is controlled by a single gene and that the allele for brown eyes is dominant to the blue-eye allele. Two brown-eyed parents planning a pregnancy already have a blue-eyed daughter. PLEASE NOTE: gender (being male or female) is a SECOND trait (like a second Punnett square), but no need for a Punnett square because the chance that an offspring will be male or female is always 1/2. Assign...
In humans, free earlobes (E) are dominant to attached earlobes (e) and the presence of freckles...
In humans, free earlobes (E) are dominant to attached earlobes (e) and the presence of freckles (F) is dominant to the absence of freckles (f). If two individual heterozygous for both of these traits were to mate, what is the probability of having a child with attached earlobes and NO freckles? a. 34.9% b. 100% c. 6.25% d. 16.4%
What is the probability of a blue-eyed (recessive) mom and a brown-eyed (dominant) dad having a...
What is the probability of a blue-eyed (recessive) mom and a brown-eyed (dominant) dad having a brown-eyed child? Consider all possible genotypes of Dad at this gene and give the probabilities associated with each genotype.
parts a-e: 3. Word Problems: For each of the following (A-E), answer the following: • What...
parts a-e:
3. Word Problems: For each of the following (A-E), answer the following: • What are the genotypes of the parents? • What are the possible sperm? Possible ova? • Draw the appropriate Punnett Square. Answer the questions asked. A (4 pts.) Mike is heterozygous for both eye color and jointedness. Kathy has blue eyes and is normal jointed. What is the probability that their daughter will have blue-eyes and be double jointed? - B. (4 pts.) Billy is...
3)Assume that green eyes in humans are dominant to blue eyes. Further assume that these are the o...
3)Assume that green eyes in humans are dominant to blue eyes. Further assume that these are the only two colors and that human eye color follows Mendel’s rules. A true-breeding greeneyed male produces offspring with a true-breeding blue-eyed female. What color eyes will the offspring have?
A plant produces purple and white flowers. Purple is dominant to white. If we have a...
A plant produces purple and white flowers. Purple is dominant to white. If we have a homozygous dominant purple flower and a homozygous recessive flower, which of the following choices are correct? O purple; PP O white; Pp O purple; pp O white; PP A heterozygous individual with brown eyes has a child with a homozygous dominant individual with brown eyes. What are the chances they have a blue-eyed baby? (You can create a Punnet square on a scratch paper...
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles (1) is recessive. Assume that a homozygous recessive man and a heterozygous woman have a child. a. What is the woman's phenotype? 0.5 point b. Show the Punnett square for the cross. 1 point c. What is the child's probability of having freckles? 0.5 point
7) In humans, brown eyes (B) are a simple dominant trait over blue eyes (b). What is the genotype of a brown-eyed woman who has a blue-eyed child? A)bb -B)Bb С)ВВ D)BBB E) BbBb 8) The ability to roll the edges of the tongue upward in a U-shape is inherited as a dominant allele at a single gene locus, Which of the following genotypes would produce an individual that can roll their tongue? A)TT only B)Tt only C) only D)TT...
5. In humans, earlobes that are suspended are dominant over those that are attached. If a mother has suspended earlobes (but her mother did not) and the father has attached earlobes, what are the chances that their first child will have attached earlobes? What about the fourth child? 6. A brown-eyed man whose mother was blue-eyed married a brown-eyed woman whose father had blue eyes. Assume brown to be dominant over blue. What is the probability that the couple will...
For the purpose of this problem assume that in humans eye color is controlled by a single gene and that the allele for brown eyes is dominant to the blue-eye allele. Two brown-eyed parents planning a pregnancy already have a blue-eyed daughter. PLEASE NOTE: gender (being male or female) is a SECOND trait (like a second Punnett square), but no need for a Punnett square because the chance that an offspring will be male or female is always 1/2. Assign...
parts a-e:
3. Word Problems: For each of the following (A-E), answer the following: • What are the genotypes of the parents? • What are the possible sperm? Possible ova? • Draw the appropriate Punnett Square. Answer the questions asked. A (4 pts.) Mike is heterozygous for both eye color and jointedness. Kathy has blue eyes and is normal jointed. What is the probability that their daughter will have blue-eyes and be double jointed? - B. (4 pts.) Billy is...
A plant produces purple and white flowers. Purple is dominant to white. If we have a homozygous dominant purple flower and a homozygous recessive flower, which of the following choices are correct? O purple; PP O white; Pp O purple; pp O white; PP A heterozygous individual with brown eyes has a child with a homozygous dominant individual with brown eyes. What are the chances they have a blue-eyed baby? (You can create a Punnet square on a scratch paper...
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