Dogs, recessive to long tail (T). A heterozygous fur parents bearing these traits are crossed, Which of the options below will be the possible genotypes of the juvenile dogs? * TT, Tt, tt
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- Facial dimples and free earlobes are both considered dominant human traits. What are the expected phenotypes of the offspring of a female with dimples and free earlobes (DDFf) and a male with no dimples and attached earlobes (ddff)?Scurs is an example of a sex-influenced traitin cattle that is dominant in males and recessive in females.A male and a female, neither of which has scurs, producea male offspring with scurs. What are the genotypes of theparents?n guinea pigs, an allele for rough fur (R) is dominant over an allele for smooth fur (r), and an allele for black coat (B) is dominant over an allele for white fur (b). What would be the genotype of a guinea pig with smooth black fur? *
- In some bizarre-feathered chickens, F is the trait for frizzled feathers while S is the trait for straight feathers. Since both traits are appears to be dominant, what proportion of the offspring would likely show straight feathers? Construct the punnet square and indentify the following: Parents’ genes? Parents’ traits? Genes (genotype)? Feather type? (phenotype)? Genotypic ratio? Phenotypic ratio?Do males and females show equal chances of inheriting tge trait? Why or why not?Two brown bears have cubs in late spring. The mother bear has the phenotype for long front claws. The mother bear has the genotype (Aa), while the father has the same genotype as the mother. A) What percentage of the offspring will have long claws?
- In the human pedigree below, the filled symbols represent the affectedindividuals.Determine the mode of InheritanceDetermine the genotypes of the numbered individualsPiebald spotting is a condition found in humans inwhich there are patches of skin that lack pigmentation. The condition results from the inability ofpigment-producing cells to migrate properly duringdevelopment. Two adults with piebald spotting haveone child who has this trait and a second child withnormal skin pigmentation.a. Is the piebald spotting trait dominant or recessive?What information led you to this answer?b. What are the genotypes of the parents?In domesticated dogs, size has a high heritability, andthe trait is determined by only a small number ofgenes. In contrast, genetic variation at more than180 QTLs explains only a very small proportion ofthe high heritability for height in humans. What couldexplain the missing heritability in humans, and howcould you test your hypothesized explanations?
- Assume that hair color, hair line, and skin tone in humans are different traits that are controlled by independently-assorting genes. Brown hair (B) is dominant to blond hair (b), a widow’s peak (W) is dominant to a straight hairline (w), and freckles (F) are dominant to no freckles (f). What is the likelihood that the child of a BBWwff person and a bbwwFF person will have: brown hair, a widow’s peak, and freckles? There is no missing information, just have to set up the punet square and I'm not sure how to do all traits.In rabbits, fur colour can be either grey, black or blotchy. Blotchy is present as grey and black spotspresent in no specific pattern. Males are almost always either grey or black, while females can begrey, black or blotchy. However, a male individual is found that shows the blotchy pattern, and youexpect a non-disjunction event might be to blame. Explain the inheritance of coat colour in rabbits,and also provide an explanation for the blotchy male.Compare and contrast dominant alleles with recessivealleles and their relation to genotype and phenotype