Science, asked by Goldy7418, 8 months ago

A fruit fly has black eyes. Having red eyes is a dominant trait (R) and having black eyes is a recessive trait (r). Which describes the fruit fly’s genotype and phenotype? genotype: black eyes phenotype: Rr genotype: black eyes phenotype: rr genotype: rr phenotype: black eyes genotype: Rr phenotype: black eyes

Answers

Answered by sai3434
8

Answer:

Since red eye color is dominant over green and long wings are dominant over short, the parents are homozygous for these recessive traits. The genotype of a parent with short-winged, green-eye is llrr and that of a long-winged, red-eyed fly is LlRr. The ratio of red and green-eyed progeny is 1:1 and likewise, the ratio of progeny with short and long wings is also 1:1. A cross between heterozygous dominant and homozygous recessive gives 1 dominant: 1 recessive progeny. This means the parent fly with long-wings, red-eyes is heterozygous for eye color and wing length.

Answered by rhawbaker
3

Answer:

Since red eye color is dominant over green and long wings are dominant over short, the parents are homozygous for these recessive traits. The genotype of a parent with short-winged, green-eye is llrr and that of a long-winged, red-eyed fly is LlRr. The ratio of red and green-eyed progeny is 1:1 and likewise, the ratio of progeny with short and long wings is also 1:1. A cross between heterozygous dominant and homozygous recessive gives 1 dominant: 1 recessive progeny. This means the parent fly with long-wings, red-eyes is heterozygous for eye color and wing length.

Explanation:

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