A wild-type Drosophila male and female are crossed, prod...

Question

A wild-type Drosophila male and female are crossed, producing 324 female progeny and 161 male progeny. All their progeny are wild type.

Propose a genetic hypothesis to explain these data.

Accepted Answer

Hi, everyone. Let's take a look at this practice problem together. Which of the following genotypes in Joola represents a female. The answer options are A X Y B X Y Y C X X Y N D X O. So recall that inosal, the female sex determinant is on the X chromosome and the male sex determinant is on the autosome. So to determine sex in jos Sophal, it's done through the X to a ratio where X is the number of X chromosomes and A is the number of sets of autosome. Essentially, the number of X chromosomes determines whether the fly is male or female. Males have one X chromosome and females have two X chromosomes. So option A X Y has a one chromosome. So this genotype represents a male. So it is not the correct answer. Option. B X Y Y also only has one X chromosome in the genotype and represents a male. So B is also incorrect. Option D X O, the O in this genotype represents the lack of a second X chromosome. So with only one X chromosome, this genotype also represents a male. So D is also incorrect. The correct answer is option C X X Y, the presence of the two X chromosomes represents female. So again, the correct answer is option C X X Y. All right, everyone. I hope you found this helpful and I'll see you soon for the next practice problem.

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A wild-type Drosophila male and female are crossed, producing 324 female progeny and 161 male progeny. All their progeny are wild type.

Propose a genetic hypothesis to explain these data.

My Courses

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

A wild-type Drosophila male and female are crossed, producing 324 female progeny and 161 male progeny. All their progeny are wild type.Propose a genetic hypothesis to explain these data.

A wild-type Drosophila male and female are crossed, producing 324 female progeny and 161 male progeny. All their progeny are wild type.

Propose a genetic hypothesis to explain these data.