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Question: 1. The development of appropriately sized wings of the fruit fly Drosophila melanogaster is a mul…


1. The development of appropriately sized wings of the fruit fly Drosophila melanogaster is a multi- step process. Initially the wings are small and incapable of flight then converted into a larger version devoid of any veins. The missing veins mean that the wings lack sufficient endurance for fight These larger versions then become vascularized (ie. veins are formed), and are now capable of sustained flight. The small wings are the miniature phenotype. The wings without veins aro the cubitus interruptus phenotype. The larger vascularized wings are the wild type presence of a single apterous allele mutation (AP) prevents the conversion from cubitus interruptus. The presence of the recessive engrailed trait (en) prevents cubitus interruptus into wild type. A male fly with the genotype AP/AP: EN/EN is crossed to a female fly with the genotype ap/ap en/en. What are the genotypes and phenotypes (and ratios) of the offspring in F:? In F2? What phenomenon is on display here? phepe The [/season from 12. The presence of a two-toned tail in mice has different expression in males compared to females The presence of a single T allele in females results in the presence of a two-toned tail. However, for males both alleles must be T for them to exhibit the two-toned tail trait (instead of the single colored tail, imparted by the T allele). If our parental generation is a cross between a TT male and a TT female, what would be the genotypes and phenotypes (and ratios of both) in our Fi generation? If we crossed a male and female from the F, generation, what would the resulting genotypes and phenotypes (and ratios of both) be in the F2 generation? 13. The skink (Niveoscincus ocellatus) has developed distinct accommodate either a protein-rich or protein-poor diet. The genotypes that are better adapted to protein-rich diet allele (P) is dominant while the the genetic maternal effect phenomenon. If we cross a male possessing the PPpo genotype and protein-rich phenotype with a female possessing the Pp genotype and protein-rich phenotype, what genotypes and phenotypes (and ratios) would we expect in the Fi generation? If we crossed the F generation with itself, what would be the resulting genotypes and phenotypes (and ratios)? protein-poor diet allele (PP) is recessive. However transmission of this trait is regulated by

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1. The development of appropriately sized wings of the fruit fly Drosophila melanogaster is a multi- step process. Initially the wings are small and incapable of flight then converted into a larger version devoid of any veins. The missing veins mean that the wings lack sufficient endurance for fight These larger versions then become vascularized (ie. veins are formed), and are now capable of sustained flight. The small wings are the miniature phenotype. The wings without veins aro the cubitus interruptus phenotype. The larger vascularized wings are the wild type presence of a single apterous allele mutation (AP) prevents the conversion from cubitus interruptus. The presence of the recessive engrailed trait (en) prevents cubitus interruptus into wild type. A male fly with the genotype AP/AP: EN/EN is crossed to a female fly with the genotype ap/ap en/en. What are the genotypes and phenotypes (and ratios) of the offspring in F:? In F2? What phenomenon is on display here? phepe The [/season from 12. The presence of a two-toned tail in mice has different expression in males compared to females The presence of a single T allele in females results in the presence of a two-toned tail. However, for males both alleles must be T' for them to exhibit the two-toned tail trait (instead of the single colored tail, imparted by the T allele). If our parental generation is a cross between a TT male and a TT female, what would be the genotypes and phenotypes (and ratios of both) in our Fi generation? If we crossed a male and female from the F, generation, what would the resulting genotypes and phenotypes (and ratios of both) be in the F2 generation? 13. The skink (Niveoscincus ocellatus) has developed distinct accommodate either a protein-rich or protein-poor diet. The genotypes that are better adapted to protein-rich diet allele (P) is dominant while the the genetic maternal effect phenomenon. If we cross a male possessing the PPpo genotype and protein-rich phenotype with a female possessing the Pp genotype and protein-rich phenotype, what genotypes and phenotypes (and ratios) would we expect in the Fi generation? If we crossed the F generation with itself, what would be the resulting genotypes and phenotypes (and ratios)? protein-poor diet allele (PP) is recessive. However transmission of this trait is regulated by

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