Inheritance and genetic crosses

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Question 35

A scientist cross-bred a homozygous mouse with black fur and a homozygous mouse with brown fur. All of the offspring in the first generation ( $F_1$ ) had black fur, as shown in the diagram below.

Diagram showing a genetic cross of a black-furred parent mouse and a brown-furred parent mouse, producing offspring that all have black fur.

Explain why all the offspring have black fur.

[2]

Inheritance and genetic crosses

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Question 35

A scientist cross-bred a homozygous mouse with black fur and a homozygous mouse with brown fur. All of the offspring in the first generation ( $F_1$ ) had black fur, as shown in the diagram below.

Diagram showing a genetic cross of a black-furred parent mouse and a brown-furred parent mouse, producing offspring that all have black fur.

Explain why all the offspring have black fur.

[2]

Inheritance and genetic crosses

Question 35

Inheritance and genetic crosses Questions

Inheritance and genetic crosses

Question 35

Inheritance and genetic crosses Questions