In fruit flies, normal wings (G) are dominant to glossy wings (g) and red eyes (R) are dominant to clear eyes (r). This trait is controlled by autosomal alleles. A male fly that is homozygous for normal wings and has clear eyes mates with a female fly that has glossy wings and is homozygous for red eyes. What is the expected phenotype ratio (in percent) of the F2 generation from this cross? Normal/Red: 18.75 6.25 9 56.25 Normal/Clear: 3 18.75 56.25 6.25 Glossy/Red: 56.25 6.25 3 18.75 Glossy/Clear: 56.25 1 6.25 18.75

In fruit flies, normal wings (G) are dominant to glossy wings (g) and red eyes (R) are dominant to clear eyes (r). This trait is controlled by autosomal alleles. A male fly that is homozygous for normal wings and has clear eyes mates with a female fly that has glossy wings and is homozygous for red eyes. What is the expected phenotype ratio (in percent) of the F2 generation from this cross? Normal/Red: 18.75 6.25 9 56.25 Normal/Clear: 3 18.75 56.25 6.25 Glossy/Red: 56.25 6.25 3 18.75 Glossy/Clear: 56.25 1 6.25 18.75

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Description: In fruit flies, normal wings (G) are dominant to glossy wings (g) and red eyes (R) are dominant to clear eyes (r). This trait is controlled by autosomal alleles.A male fly that is homozygous for normal wings and has clear eyes mates with a female fl

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....

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Concept explainers

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.

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Question

In fruit flies, normal wings (G) are dominant to glossy wings (g) and red eyes (R) are dominant to clear eyes (r). This trait is controlled by autosomal alleles.

A male fly that is homozygous for normal wings and has clear eyes mates with a female fly that has glossy wings and is homozygous for red eyes.

What is the expected phenotype ratio (in percent) of the F₂ generation from this cross?

Normal/Red:

18.75

6.25

56.25

Normal/Clear:

18.75

56.25

6.25

Glossy/Red:

56.25

6.25

18.75

Glossy/Clear:

56.25

6.25

18.75

Definition Definition Observable physical traits or characteristics of an organism, which are determined by its genetic makeup (genotype) as well as environmental factors. These traits can include anything from eye color or height to behavior or disease susceptibility. Understanding an organism's phenotype is important in fields such as genetics, medicine, and ecology.

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