Biology

Biology, 29.08.2019 23:00, dudeguy3593

If a cross results in 90 long-winged flies to 30 vestigial-winged flies, what are the phenotypes of the parents?

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Biology, 12.09.2019 19:30, monayemcnett11

Fruit flies with one allele for curly wings (cm and one allele for normal wings (cy+) have curly wings. when two curly- winged flies were crossed, 203 curly-winged and 98 normal-winged flies were obtained. in fact, all crosses between curly- winged flies produce nearly the same curly : normal ratio among the progeny. a. whet is the approximate phenotypic ratio in these offspring? b. suggest an explanation for these date. c. if a curly-winged fly was mated to e normal- winged fly. how many flies of each type would you expect among 180 total offspring?

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Biology, 02.10.2019 20:20, chandranewlon

Fruit flies with one allele for curly wings (cm and one allele for normal wings (cy+) have curly wings. when two curly- winged flies were crossed, 203 curly-winged and 98 normal-winged flies were obtained. in fact, all crosses between curly- winged flies produce nearly the same curly : normal ratio among the progeny. a. whet is the approximate phenotypic ratio in these offspring? b. suggest an explanation for these date. c. if a curly-winged fly was mated to e normal- winged fly. how many flies of each type would you expect among 180 total offspring?

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Biology, 14.10.2019 18:30, tsmoothb15851

You count 73 long-winged flies and 27 short-winged flies from a cross between two heterozygous parents. how many have short wings

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Biology, 11.11.2019 00:31, Samuelgamboe

Scenario 1: make a cross between the following flies: 1. a heterozygous gray-bodied fly. 2. a homozygous black-bodied fly. what are the genotypes of parent 1. parent 2, and the offspring? parent 1: gg; parent 2: gg; offspring: gg, gg, gg, gg parent 1: gg; parent 2: gg; offspring: gg, gg, gg, gg parent 1: gg; parent 2: gg; offspring: gg, gg, gg, gg scenario 2: make a cross between the following flies: 1: a heterozygous gray-bodied fly and 2: a heterozygous gray-bodied fly. what is the dominant phenotype in this question? gray-bodies black-bodies scenario 3: make a cross between the following flies: 1. a homozygous long-winged fly and 2. a homozygous vestigial-winged fly. what are the genotypes of the parents and the offspring? parent 1: ll; parent 2: ll; offspring ll, ll, ll, ll parent 1: ll; parent 2: ll; offspring: ll, ll, ll, ll parent 1: ll; parent 2: ll; offspring: ll, ll, ll, ll scenario 4: make a cross between the following flies: 1. a homozygous long-winged fly and 2. a heterozygous long-winged fly. what will the offspring look like? 100% long-winged flies 50% long-winged flies & 50% vestigial-winged flies 75% long-winged flies & 25% vestigial-winged flies 100% vestigial-winged flies scenario 5: make a cross between 1. a heterozygous long-winged fly and 2. a heterozygous long-winged fly.what is the ratio of long-winged offspring to short-winged offspring? 1: 1 all will have long wings 3: 1 scenario 6: make a cross between two flies that are expected to produce 50% homozygous gray-bodied offspring and 50% heterozygous gray-bodied offspring. what will the genotype of the parents be? both parents will be gg. one parent will be gg and the other will be gg. both parents will be gg. one parent will be gg and the other will be gg. scenario 7: make a cross between two flies that are expected to produce 50% heterozygous long-winged offspring and 50% vestigial-winged offspring. what will the genotypes and phenotypes of the parents be? ll, long-winged; ll, vestigial-winged ll, short-winged; ll, short-winged ll, long-winged; ll, short-winged both ll, long-winged scenario 8: make a cross between flies that are expected to produce all heterozygous, gray-bodied offspring. what will the phenotypes of the parents be? 3 points both parents will have gray bodies. one parent will have a gray body and one parent will have a black body. both parents will have black bodies. scenario 9: make a cross between two flies that are expected to have vestigial-winged offspring. what will the phenotypes of the parents be? 3 points both parents will have long wings. one parent will have long wings and one parent will have short wings. both parents will have short (vestigial) wings. scenario 10: make a cross between two parents that are expected to have all black-bodied offspring. what will the genotype of the parents be? 3 points parent 1: gg, parent 2: gg parent 1: gg, parent 2: gg parent 1: gg, parent 2: gg

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If a cross results in 90 long-winged flies to 30 vestigial-winged flies, what are the phenotypes of...

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