7) In cats, the gene for coat color is both X-linked and incompletely dominant. There are black coat and yellow coat alleles, with calico (tortoise shell) as the heterozygous form. If a yellow male mates with a calico female, what are the expected offspring phenotypes (in percent)?
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- In cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the allele XT and black coat by the allele Xt. A tortoise coat is caused by the heterozygous condition. What are the possible gametes that a female cat with a black coat could produce? Group of answer choices: A) X(T) B) X(t) C) X(t) or X(T) D) X(T) or Y E) X(T) or YIn cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the allele XT and black coat by the allele Xt. A tortoise coat is caused by the heterozygous condition. What are the possible gametes that a female cat with a black coat could produce? Group of answer choices X(T) X(t) X(t) or X(T) X(T) or Y X(T) or Y[ ] Complete the following table considering mating a black hearing male Labrador dog (homozygous in both alleles) with black deaf female (heterozygous in coat color allele). ] Genotype structure of the male "Genotype structure of the female ]Possible gamete structure(s) of the male s] Possible gamete structure(s) of the female ]What are the traits of the resulting offspring if a sperm bD fertilizes an egg bd? Key: B= black allele (dominant), b = brown allele (recessive), D = hearing allele (dominant), d = deaf allele (recessive). %3D
- A fruit fly with a gray body and red eyes (genotype BbPp) is mated with a fly having a black and purple eyes (genotype bbpp). Show diagrammatically a genetic cross between the two flies and the possible genotypes and phenotypes of F1. What ratio of offspring would you expect if the body-colour and eye-colour genes are on different chromosome (unlinked)? When mating is actually carried out, most of the offspring look like the parents, but 3% have a gray body and purple eyes, and 3% have a black body and red eyes. Compare and discuss the observation with your answer in part (A fruit fly with a gray body and red eyes (genotype BbPp) is mated with a fly having a black and purple eye (genotype bbpp).1.Show diagrammatically a genetic cross between the two flies and the possible genotypes and phenotypes of F1. What ratio of offspring would you expect if the body-color and eye-color genes are on different chromosomes (unlinked)? 2. When mating is actually carried out, most of the offspring look like the parents, but 3% have a gray body and purple eyes, and 3% have a black body and red eyes. Compare and discuss the observation with your answer in part (a)2 (a) The trait of hen- versus cock-feathering is a sex-limited trait controlled by a single gene. HH and Hh males always exhibit the hen-featuring trait. Only hh males show the cock-feathering trait. Starting with two heterozygous fowls that are hen- feathered, describe how you would obtain a true-breeding line that always produces cock-feathered males. [Ciri berhulu avam hatin
- A fruit fly with a gray body and red eyes (genotype BbPp) is mated with a fly having a black and purple eyes (genotype bbpp). a) Show diagrammatically a genetic cross between the two flies and the possible genotypes and phenotypes of F1. What ratio of offspring would you expect if the body-colour and eye-colour genes are on different chromosome (unlinked)? b) When mating is actually carried out, most of the offspring look like the parents, but 3% have a gray body and purple eyes, and 3% have a black body and red eyes. Compare and discuss the observation with your answer in part (a).A red-eyed (dominant) female with a grey (dominant) body is crossed with red-eyed (dominant) male with a yellow body (recessive) The pair of fruit flies (given above) produce 320 offspring together from a single mating: 57 red-eyed females with grey bodies, 61 red-eyed females with yellow bodies, 22 brown- eyed females with grey bodies, 20 brown-eyed females with yellow bodies. 59 red-eyed males with grey bodies, 63 red-eyed males with yellow bodies, 20 brown-eyed males with grey bodies, 18 brown-eyed males with yellow bodies. From this information only (NO genetic diagrams required), what evidence and logic can you use to deduce the genetic identity of the parent flies?If the frequency of the "green" form of red-green color blindness (due to an X-linked locus) is 5 percent among males, what fraction of females would be affected? Assuming H-W equilibrium what fraction of females would be heterozygous?
- 3) Short tail length in cattle is caused by an X-linked recessive allele. Roan coat colour of cattle is due to co-dominance (other coat colours are red and white). a) Show the results of a cross between a bull which has a roan coat and a short tail and a white cow which is heterozygous long tail. b) What percentage of male calves will have a red coat and a short tail?An Agouti with Himalayan gene female rabbit was mated by an albino male. The phenotypes for the filial generation are...Brown Enamel of the teeth is a well-known sex-linked dominant trait. Showing ALL work using punnett squares, determine the genotypes of offspring for the following matings: A.) The father of a family has a defect, but the mother does not and does not carry it. B.) The father has the defect, and the mother is heterozygous for it. C.) The father does not have the defect and the mother is homozygous for it. D.) The father does not have the defect and the mother is heterozygous.