Inheritance and genetic crosses

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Question 3

A student crossed pure-breeding tomato plants that have purple stems with pure-breeding tomato plants that have green stems.

All the offspring ( $F_1\,$ generation) produced from this cross had purple stems, as shown in the diagram below.

A genetic cross diagram showing a pure-breeding purple-stemmed tomato plant crossed with a pure-breeding green-stemmed tomato plant. The diagram shows the Parent generation (purple stem x green stem) yielding the F1 generation of offspring, which are all purple-stemmed.

Explain why all the offspring have purple stems.

[2]

Inheritance and genetic crosses

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Question 3

A student crossed pure-breeding tomato plants that have purple stems with pure-breeding tomato plants that have green stems.

All the offspring ( $F_1\,$ generation) produced from this cross had purple stems, as shown in the diagram below.

A genetic cross diagram showing a pure-breeding purple-stemmed tomato plant crossed with a pure-breeding green-stemmed tomato plant. The diagram shows the Parent generation (purple stem x green stem) yielding the F1 generation of offspring, which are all purple-stemmed.

Explain why all the offspring have purple stems.

[2]

Inheritance and genetic crosses

Question 3

Inheritance and genetic crosses Questions

Inheritance and genetic crosses

Question 3

Inheritance and genetic crosses Questions