Homework Answers
Answer:
Only the first option A) The first offspring will not have scurs is relevant here. 25% probability of female offspring will not have scurs while other 25% wlll have scurs similar to male offspring.
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Scurs in cattle is a sex-influenced trait. A cow with no scurs whose mother had scurs...
With regard to pattern baldness in humans (a sex-influenced trait), a woman who is not bald...
With regard to pattern baldness in humans (a sex-influenced trait), a woman who is not bald and whose mother is bald has children with a bald man whose father is not bald. What is the probability for their first child being a daughter and bald?
white. What are the predicted color phenotypes and their frequencies for the 1. In cattle, RR...
white. What are the predicted color phenotypes and their frequencies for the 1. In cattle, RR red, Rr-roan, and offspring from crosses between: a. a red bull and a white cow b , a red bull and a roan cow a roan bull and a roan cow What type of inheritance controls these cattle fur colors? 2. Given the following information about the inheritance of characteristics in pea plants, answer the questions below Y (yellow) is dominant to y (green),...
^^^ 2. How would you tell whether a novel trait is sex-influenced or sex-limited? Compare the...
^^^ 2. How would you tell whether a novel trait is
sex-influenced or sex-limited? Compare the F2 generation tables and
write a sentence describing the difference between sex-limited and
sex-influenced.
In males : B+B+ beardless, B+b^b is bearded, B^b B^b is
bearded.
In females: B+B+ is beardless, B+b^b is beardless and B^bB ^b is
bearded.
HH is hen feathering in both males and females; Hh is hen
feathering in both males and females; and hh in males- cock
feathering and...
SEX-LINKAGE Red-Green color-blindness is sex-linked X-linked recessive trait. A normal sighted woman whose father is color-...
SEX-LINKAGE Red-Green color-blindness is sex-linked X-linked recessive trait. A normal sighted woman whose father is color- blind marries a color-blind man. they have 20 children. Of those 20, 6 are normal sighted females, 5 are color-blind females, 4 are normal sighted males and 5 are color-blind males. 7. What are the genotypes of the parents and all the children? 8. Theoretically, what would be the genotypic and phenotypic ratios of the offspring?
4) Hornless (H) in cattle is dominant over horned (h). A heterozygous hornless bull is mated...
4) Hornless (H) in cattle is dominant over horned (h). A heterozygous hornless bull is mated with a horned cow. Complete the Punnett Square: List the Genotypes of the offspring: List the Phenotypes of the offspring with percentages: 5) Type A and Type B blood are codominant to each other. They are both dominant over Type O blood. The genotype of the mother is I4i and the genotype of the father is IAIB. Complete the Punnett Square: List the Genotypes...
Red-green color blindness is a sex-linked trait, with the normal vision phenotype being dominant (C) and...
Red-green color blindness is a sex-linked trait, with the normal vision phenotype being dominant (C) and the color blind (c) phenotype being recessive. If you are male and your father is color blind, what is the chance (expressed as a percentage) that you will inherit his trait for color blindness? What if your mother is a carrier for color blindness (but your father is not color blind), what is the chance of you being color blind? Make sure...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
also draw the punnet square 6. A brown-eyed man, whose mother was blue-eyed, marries a blue-eyed...
also draw the punnet square
6. A brown-eyed man, whose mother was blue-eyed, marries a blue-eyed woman. The man is red-green colour blind and his wife has normal colour vision although her father was also colour blind. (Note: brown eyes is dominant over blue eyes and eye colour is inherited autosomally. Red-green colour blindness is a sex-linked recessive trait). a) What are the genotypes of the man and his wife with respect to these two traits? Ger b) Complete the...
In gerbils, the gene that specifies coat color is sex‑linked and has multiple alleles, as follows:...
In gerbils, the gene that specifies coat color is sex‑linked and has multiple alleles, as follows: B ‑ black, br ‑ brown, by ‑ yellow, and b ‑ albino. The allele br is incompletely dominant over by, the combination br by giving tan color; otherwise, dominance is in the order given ‑‑ B, br, by, b. (For your information, gerbils are mammals.) A black gerbil mated with a yellow gerbil gave one brown male and one black female offspring. a....
Genetic X Fies Analysis of Crosses The pointed-ear trait in MendAliens is caused by an X-linked...
Genetic X Fies Analysis of Crosses The pointed-ear trait in MendAliens is caused by an X-linked recessive mutant allele. Genetic X Files Problems a. A female MendAlien, Marge, with no ears (the normal condition) and whose male parent had pointed ears pairs with a male MendAlien with no ears and whose male parent also had pointed ears. The pointed ears phenotype looks like this: Pointed-ears phenotype Using e for the pointed-ears allele and Efor the normal no-ear allele, diagram the...
white. What are the predicted color phenotypes and their frequencies for the 1. In cattle, RR red, Rr-roan, and offspring from crosses between: a. a red bull and a white cow b , a red bull and a roan cow a roan bull and a roan cow What type of inheritance controls these cattle fur colors? 2. Given the following information about the inheritance of characteristics in pea plants, answer the questions below Y (yellow) is dominant to y (green),...
^^^ 2. How would you tell whether a novel trait is
sex-influenced or sex-limited? Compare the F2 generation tables and
write a sentence describing the difference between sex-limited and
sex-influenced.
In males : B+B+ beardless, B+b^b is bearded, B^b B^b is
bearded.
In females: B+B+ is beardless, B+b^b is beardless and B^bB ^b is
bearded.
HH is hen feathering in both males and females; Hh is hen
feathering in both males and females; and hh in males- cock
feathering and...
4) Hornless (H) in cattle is dominant over horned (h). A heterozygous hornless bull is mated with a horned cow. Complete the Punnett Square: List the Genotypes of the offspring: List the Phenotypes of the offspring with percentages: 5) Type A and Type B blood are codominant to each other. They are both dominant over Type O blood. The genotype of the mother is I4i and the genotype of the father is IAIB. Complete the Punnett Square: List the Genotypes...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
also draw the punnet square
6. A brown-eyed man, whose mother was blue-eyed, marries a blue-eyed woman. The man is red-green colour blind and his wife has normal colour vision although her father was also colour blind. (Note: brown eyes is dominant over blue eyes and eye colour is inherited autosomally. Red-green colour blindness is a sex-linked recessive trait). a) What are the genotypes of the man and his wife with respect to these two traits? Ger b) Complete the...
Genetic X Fies Analysis of Crosses The pointed-ear trait in MendAliens is caused by an X-linked recessive mutant allele. Genetic X Files Problems a. A female MendAlien, Marge, with no ears (the normal condition) and whose male parent had pointed ears pairs with a male MendAlien with no ears and whose male parent also had pointed ears. The pointed ears phenotype looks like this: Pointed-ears phenotype Using e for the pointed-ears allele and Efor the normal no-ear allele, diagram the...
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