The fruit fly, Drosophila, has either long wings or vestigial wings, as shown in Figure 2 below. Figure 2 Long-winged fly Vestigial-winged fly The size of the wings is determined by a pair of alleles: A and a. Long-winged flies have one of two possible genotypes: AA or Aa. Vestigial-winged flies have only one genotype: aa. a) Using the letters A and a give the genotype of a heterozygous fly. b) Why can vestigial-winged flies only have the genotype aa? c) A male and a female long-winged fly were crossed. They produced 96 offspring. Of the offspring 72 had long wings and 24 had vestigial wings. You may use a genetic diagram to explain this.
The fruit fly, Drosophila, has either long wings or vestigial wings, as shown in Figure 2 below. Figure 2 Long-winged fly Vestigial-winged fly The size of the wings is determined by a pair of alleles: A and a. Long-winged flies have one of two possible genotypes: AA or Aa. Vestigial-winged flies have only one genotype: aa. a) Using the letters A and a give the genotype of a heterozygous fly. b) Why can vestigial-winged flies only have the genotype aa? c) A male and a female long-winged fly were crossed. They produced 96 offspring. Of the offspring 72 had long wings and 24 had vestigial wings. You may use a genetic diagram to explain this.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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Transcribed Image Text:The fruit fly, Drosophila, has either long wings or vestigial wings, as shown in
Figure 2 below.
Figure 2
Long-winged fly
Vestigial-winged fly
The size of the wings is determined by a pair of alleles: A and a.
Long-winged flies have one of two possible genotypes: AA or Aa.
Vestigial-winged flies have only one genotype: aa.
a)
Using the letters A and a give the genotype of a heterozygous fly.
b)
Why can vestigial-winged flies only have the genotype aa?
A male and a female long-winged fly were crossed. They produced 96
offspring. Of the offspring 72 had long wings and 24 had vestigial wings.
You may use a genetic diagram to explain this.
c)
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