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