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Long eyelashes, E, is dominant to short eyelashes, e. A male homozygous for long eyelashes conceives with a female heterozygous for long eyelashes. Calculate the genotypic and
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- Brown hair, H, is dominant to blonde hair, h. A male homozygous for brown hair conceives with a female with blonde hair. Calculate the genotypic and phenotypic ratios of the offspring. (Show all 5 steps)When crossing normal-colored mice with other albino mice, all the F1 mice were normal. State the phenotypic and genotypic ratios for F2. Albinism is determined by a recessive allele, the dominant allele is pigmented, assign alleles.b. A certain animal can have brown, red, black or gray fur. Assume that fur colour is controlled by a single gene with multiple alleles in a dominance series where black (B1) > brown (B2) > red (B3) > gray (B4). Give the genotypes of two phenotypically different heterozygotes that when crossed produce offspring with the phenotypic ratio of 1 gray : 2 brown : 1 red.
- A. Consider this cross before answering the following questions:A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. It there is incomplete dominance in the expression of the two traits, what is the probability that the F1 progeny will be a. expressing the dominant feature for the second trait?b. expressing the dominant feature for both traits?c. expressing the dominant feature for the first trait and recessive feature for the second?d. expressing recessive feature for the first trait?e. expressing recessive feature for both traits?Incomplete Dominance: 1) On the planet Iota Geminorum IV there exists a small hairy animal known as a tribble. It comes in three colors blue, red, and purple. This trait is controlled by a single locus with incompletre dominance. A homozygous CBCB is blue, a homozygous CRCR is red, and a heterozygous CBCR is purple. a. What would be the genotypes and phenotypes of the offspring if a blue tribble were crossed with a red one? b. If the offspring in #1 were crossed what would the genotypic and phenotypic ratios be of this generation?Demonstrate how males are at an increased risk of sex-linked recessive traits by crossing a female who is a carrier for Hunter syndrome with a normal male. The genotypes involved are XH, Xh, and Y. State the genotypes and phenotypes of the offspring.
- Freckles, F, is dominant to no freckles, f. A male heterozygous for freckles conceives with a female heterozygous for freckles. Calculate the genotypic and phenotypic ratios of the offspring. (Show all 5 steps) help pleaseman, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly hair (w). Cross a marriage between a heterozygous spotted, non-wooly man with a heterozygous wooly-haired, non-spotted woman. Give the genotypes and phenotype of offspring.A. Consider this cross before answering the following questions:A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. If the first gene is demonstrating recessive epistasis to the second gene, what is the probability that the F1 progeny will express a. the dominant feature for the second trait?b. the recessive feature for the second trait?c. neither dominant nor recessive features for the second trait?
- A. Consider this cross before answering the following questions:A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. If the first gene is demonstrating dominant epistasis to the second gene, what is the probability that the F1 progeny will expressa. the dominant feature for the second trait?b. the recessive feature for the second trait?c. Neither dominant nor recessive features for the second trait?A. Consider this cross before answering the following questions: A pea plant heterozygous for the first trait and recessive for the second trait is crossed with a pea plant heterozygous for the first trait and homozygous-dominant for the second trait. 1. If there is complete dominance in the expression of the two traits, what is the probability that the F1 progeny will be a. heterozygous for the first trait? b. expressing the dominant feature of the first trait? c. heterozygous for both first and second traits? d. expressing recessive feature of the second trait? e. recessive for both traits 2. It there is incomplete dominance in the expression of the two traits, what is the probability that the F1 progeny will be a. expressing the dominant feature for the second trait? b. expressing the dominant feature for both traits? c. expressing the dominant feature for the first trait and recessive feature for the second? d. expressing recessive feature for the first trait? e.…a. A certain species of beetle may have a smooth or rough plate over the thorax. The plate may be translucent or opaque. A female beetle that is true breeding for a smooth, translucent plate mates with a male beetle with a rough, opaque plate. All the offspring from this cross have plates that are smooth and translucent. When the reciprocal cross is made, all the offspring have rough, translucent plates. Explain the inheritance mechanisms that produce these results and where applicable indicate the dominance relationship. b. A type of pigeon may have spots on its wings or the wings may be plain. A female bird homozygous for spots is crossed with a male bird homozygous for plain. All the male offspring have spots and all the female offspring have plain wings. When the F1 offspring are crossed with each other, the resulting F2 are produced in the following ratios: Males: 3 spots : 1 plain…