Homework Answers
The allele responsible for hairy pinna (hairy ears) is located on Y chromosome. We all know that, Y chromosome is present only in males not in females. So, only males have hairy pinna females don't.
Males don't have two number of X chromosomes. So, expression of allele co-dominantly is not possible. They contains one X chromosome and one Y chromosome. The X chromosome may contain Y allele for yellow fur or B allele for black fur. Co-dominance of Y allele and B allele is not possible because males don't have two numbers of X chromosomes. When Y allele as well as B allele express co-dominantly only then calico fur is possible.
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5. Hairy pinna (hairy ears) has been found in males, but not in females. Suggest an...
(Problem 66a) Male house cats are either black or orange; females are black, orange, or calico....
(Problem 66a) Male house cats are either black or orange; females are black, orange, or calico. If these coat-color phenotypes are governed by a sex-linked gene, how can these observations be explained? A.The gene is on the X chromosome and three alleles must be involved. B.Calico males die before birth C.In males, orange is always dominant over calico. D. The gene is on the X chromosome and heterozygous females display the calico phenotype. . E.Calico males are sterile. (Problem 66...
Coat color in cats is partially determined by the X-linked O locus. OO females and OY males...
Coat color in cats is partially determined by the X-linked O locus. OO females and OY males are orange, while oo females and oY males are black. Oo females are a mosaic of orange and black (calico cats). In a population of cats where this locus is at Hardy-Weinberg equilibrium, 4% of males are orange. a) What is the frequency of the o (black) allele in the population? ____________ b) What is the expected frequency of calico cats in this population, assuming equal...
that's all the professor give 3. In pigs, black hair (B) is dominant to red hair...
that's all the professor give
3. In pigs, black hair (B) is dominant to red hair (b). Erect ears (E) are dominant to drooping ears (e). What are the expected proportions of the different phenotypes resulting from a mating between two pigs heterozygous for both traits? SHOW A PUNNETT SQUARE 4. There are 2 colors in color squash, white & yellow. White (W) is dominant over yellow (w). What are the expected genotype and phenotype frequencies for each of the...
5. Show the cross of a red eyed female (heterozygous) and a red eyed male What...
5. Show the cross of a red eyed female (heterozygous) and a red eyed male What are the genotypes of the parents? How many of the offspring are white eyed, male white eyed, female red eyed, male red eyed, female 6. In humans, hemophilia is a sex linked trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but theywon'tever be carriers) XHXH=female, non-hemophilic X H X h female, carrier Xh Xh-...
16. So far we have been dealing with alleles found on autosomal chromosomes. These chromosomes contain...
16. So far we have been dealing with alleles found on autosomal chromosomes. These chromosomes contain all the genetic information that is not gender related. As a human, you have 44 autosomal chromosomes (22 pairs → 11 chromosomes from your Mom and 11 chromosomes from your Dad). You also contain a pair of sex chromosomes. These chromosomes contain all the genetic information related to your gender. If you are female, you received an X chromosome from your Mom and an...
You must record all crosses and results on the log sheets provided in this lab. Your...
You must record all crosses and results on the log sheets provided in this lab. Your completed log sheets must be attached to your final report as an Appendix. PART IV: POST-LAB. These following exercises must be completed in your labreport: 1. Length of fur is also genetically determined. The allele L produces long fur and its corresponding allele, I produces short fur. Long fur is dominant to short. a) You mate 2 hamsters. Both heterozygous for brown long fur....
not sure answer to last one 3. H > hch h h block chec cinnamon altin...
not
sure answer to last one
3. H > hch h h block chec cinnamon altin 3. In a certain species of cat, there are four alleles for fur color. The Hallele (black fur) is completely dominant over all other alleles. The chocolate allele h is recessive to the H allele but completely dominant to all other alleles. The cinnamon allele (his recessive to the Hand hch alleles but completely dominant to albino allele (h), which gives completely white fur...
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....
need help with 1 and 2 please. X-linked Recessive Traits Review X-linked traits in your textbook....
need help with 1 and 2 please.
X-linked Recessive Traits Review X-linked traits in your textbook. 1 In cars, the Ballele produces black fur & b produces orange fur. This gene is X-linked (X & X". Both colors are expressed in heterozygotes calico). If alcat has 2 calico kittens, 1 male black kitten, and I female orange kitten, what is the ty p henotype of the father cat? (Hint: Work backwards & use a Punnett square Remember that not every...
Show your work for all problems. 1) A diploid species of hamsters has a total of...
Show your work for all problems. 1) A diploid species of hamsters has a total of 4 chromosomes (2n = 4). A gene for whisker length is encoded by an autosomal gene and the long whisker allele (H) is dominant to the short whisker allele (h). A second gene located on the X chromosome is responsible for nose color. The brown nose allele (B) is dominant to the pink nose allele (b). A. (8 pts) A male with short whiskers...
that's all the professor give
3. In pigs, black hair (B) is dominant to red hair (b). Erect ears (E) are dominant to drooping ears (e). What are the expected proportions of the different phenotypes resulting from a mating between two pigs heterozygous for both traits? SHOW A PUNNETT SQUARE 4. There are 2 colors in color squash, white & yellow. White (W) is dominant over yellow (w). What are the expected genotype and phenotype frequencies for each of the...
5. Show the cross of a red eyed female (heterozygous) and a red eyed male What are the genotypes of the parents? How many of the offspring are white eyed, male white eyed, female red eyed, male red eyed, female 6. In humans, hemophilia is a sex linked trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but theywon'tever be carriers) XHXH=female, non-hemophilic X H X h female, carrier Xh Xh-...
16. So far we have been dealing with alleles found on autosomal chromosomes. These chromosomes contain all the genetic information that is not gender related. As a human, you have 44 autosomal chromosomes (22 pairs → 11 chromosomes from your Mom and 11 chromosomes from your Dad). You also contain a pair of sex chromosomes. These chromosomes contain all the genetic information related to your gender. If you are female, you received an X chromosome from your Mom and an...
You must record all crosses and results on the log sheets provided in this lab. Your completed log sheets must be attached to your final report as an Appendix. PART IV: POST-LAB. These following exercises must be completed in your labreport: 1. Length of fur is also genetically determined. The allele L produces long fur and its corresponding allele, I produces short fur. Long fur is dominant to short. a) You mate 2 hamsters. Both heterozygous for brown long fur....
not
sure answer to last one
3. H > hch h h block chec cinnamon altin 3. In a certain species of cat, there are four alleles for fur color. The Hallele (black fur) is completely dominant over all other alleles. The chocolate allele h is recessive to the H allele but completely dominant to all other alleles. The cinnamon allele (his recessive to the Hand hch alleles but completely dominant to albino allele (h), which gives completely white fur...
need help with 1 and 2 please.
X-linked Recessive Traits Review X-linked traits in your textbook. 1 In cars, the Ballele produces black fur & b produces orange fur. This gene is X-linked (X & X". Both colors are expressed in heterozygotes calico). If alcat has 2 calico kittens, 1 male black kitten, and I female orange kitten, what is the ty p henotype of the father cat? (Hint: Work backwards & use a Punnett square Remember that not every...
Show your work for all problems. 1) A diploid species of hamsters has a total of 4 chromosomes (2n = 4). A gene for whisker length is encoded by an autosomal gene and the long whisker allele (H) is dominant to the short whisker allele (h). A second gene located on the X chromosome is responsible for nose color. The brown nose allele (B) is dominant to the pink nose allele (b). A. (8 pts) A male with short whiskers...
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