Biology

Biology, 01.07.2019 01:30, mutesheep

When hairless hamsters are mated with normal-haired hamsters, about 1/2 are hairless and 1/2 are normal. when hairless hamsters are crossed with each other, the ratio of normal-haired to hairless is 1: 2?

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Biology, 25.06.2019 13:00, snehpatel3356

In a dog breed known as the mexican hairless, the 'hairless' phenotype is a result of a mutation displaying an autosomal dominant pattern of inheritance. homozygous recessive individuals (hh) display a 'coated' phenotype. inheriting two copies of the mutation (hh) is lethal during embryonic development. in a cross between two dogs with the hairless phenotype, what proportion of live puppies born are expected to be hairless? give your answer in the form of a fraction.

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English, 08.07.2019 09:00, knighiv

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Biology, 13.09.2019 18:30, arianawelsh123l

Q: - in dogs, the mexican hairless phenotype never breeds true. when mexican hairless are interbred the offspring are 2/3 hairless and 1/3 normal. it is also observed that some deformed puppies are born dead. propose a genetic explanation for these observatios.

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Biology, 23.09.2019 23:30, mandy9386

In the fruit fly, drosophila melanogaster, a spineless (no wing bristles) female fly is mated to a male that is claret (dark eyes) and hairless (no thoracic bristles). all of the resulting flies are phenotypically wild-type (assume all three mutant genes are recessive). the wild-type f1 female progeny were mated to fully homozygous (mutant) males, and the following progeny (1000 total) were observed: phenotypes number observed spineless 321 wild 38 claret, spineless 130 claret 18 claret, hairless 309 hairless, claret, spineless 32 hairless 140 hairless, spineless 12 what is the correct gene map for these genes?

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When hairless hamsters are mated with normal-haired hamsters, about 1/2 are hairless and 1/2 are nor...

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