Inheritance and genetic crosses

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Question 41

A geneticist cross-bred a homozygous fruit fly (Drosophila melanogaster) with long wings and a homozygous fruit fly with short wings. All of the offspring in the first generation ( $F_1$ ) had long wings, as shown in the diagram below.

Genetic cross diagram of fruit flies with long and short wings

Explain why all of the $F_1$ offspring have long wings.

[2]

Inheritance and genetic crosses

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Question 41

A geneticist cross-bred a homozygous fruit fly (Drosophila melanogaster) with long wings and a homozygous fruit fly with short wings. All of the offspring in the first generation ( $F_1$ ) had long wings, as shown in the diagram below.

Genetic cross diagram of fruit flies with long and short wings

Explain why all of the $F_1$ offspring have long wings.

[2]

Inheritance and genetic crosses

Question 41

Inheritance and genetic crosses Questions

Inheritance and genetic crosses

Question 41

Inheritance and genetic crosses Questions