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In tigers, a recessive allele that is pleiotropic causes an absence of fur pigmentation (a white tiger) and a cross-eyed condition. If two
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Biology: Concepts and Investigations
- In fruit flies, the allele for normal wings (V) is dominant to the allele for short wings (v). Suppose two fruit flies heterozygous for the trait are mated. What is the male fruit fly’s genotype and the female fruit fly’s genotype? What is the male fruit fly’s phenotype and the female fruit fly’s phenotype? What will be the genotypic ratio of the F1 generation? What will be the phenotypic ration of the F1 generation?arrow_forwardIn humans, brown eyes are dominant to blue eyes, and the ability to roll your tongue is dominant to not being able to roll your tongue. If a mother who was heterozygous for eye colour and homozygous recessive for tongue rolling had a baby with a father that was heterozygous for both traits, what is the probability that their child would have blue eyes and could roll their tongue?arrow_forwardHair length is incompletely dominant in Chihuahuas. If a homozygous long-haired Chi mates with a homozygous short-haired Chi, their heterozygous offspring have medium-length hair. If two heterozygous Chihuahuas mate, what is the probability that their pups will have long hair, medium hair, or short hair? L = long hair allele l = short hair allelearrow_forward
- The human trait for blue eyes is recessive to the trait brown eyes (brown eyes is dominant). When a parent with blue eyes (bb) mates with a parent heterozygous for brown eyes (Bb), what is the expected genotypic ratio of their offspring?arrow_forwardIn mammoths, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly hair (w). A cross between a heterozygous spotted, non-wooly mammoth and a heterozygous wooly-haired, non-spotted mammoth. How many offspring will be spotted, non-wooly mammoth? How many offspring will be non-spotted, non-wooly mammoth? How many offspring will be spotted, wooly mammoth? How many offspring will be non-spotted, wooly mammoth?arrow_forwardIn cats, the allele (B) produces black color but (b) producesyellow color. These alleles are co‐dominant to each other. Aheterozygote produces a tortoise‐shell color. The alleles (B)and (b) are sex‐linked as well. Cross a tortoise‐shell femalewith a yellow male. What percent of their offspring will be yellow? What percent of their offspring will be black? What percent of their offspring will be tortoise shell?arrow_forward
- Cows have codominance inheritance rules for their coat color. Cows with the genotype BB are completely black, those with the genotype WW are completely white, and with genotype BW have black and white spots across their body. Draw a Punnett Square that shows the genotypes and phenotypes of the offspring from a heterozygous coated cow and a homozygous white coated cow? Indicate also the genotypic and phenotypic % below:\arrow_forwardFur color is codominant in cows. A roan cow has a fur color of orange and white. What are the phenotype and genotypic ratios expected if a roan male and a roan female breed together?arrow_forwardIn dogs, the trait for coat color influences the trait for short legs. Black coat (B) is dominant to gray coat (b) while short legs (l) is recessive to long legs (L). However, if a dog has a gray coat, they automatically have short legs. Determine the phenotypic frequency of a gray dog with short legs if two Black long-legged dogs (Bb,Ll x Bb,Ll) are the parents.arrow_forward
- In rabbits, black hair depends on a dominant allele, B, and brown hair on a recessive allele, b. short hair is due to a dominant allele, S, and long hair to a recessive allele, s. If a true-breeding black short-haired male is mated with a brown long-haired female, describe their offspring. What will be the genotypes of the offspring? If two of these f1 rabbits are mated, what phenotypes would you expect among their offspring? In what proportions?arrow_forwardIn mice black fur (B) is dominant over white fur (b). What is the phenotypic percentage of offspring from a cross between a heterozygous black mouse and a white mouse? 100% black; 0% white 50% black; 50% white 100% gray 75% black; 25% whitearrow_forwardA cross between an orange-brown male and a homozygous black female produce four kittens. What is the phenotypic probability of the offspring? probability of the offspring?arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College