Inheritance and genetic crosses

In tomato plants, the allele for purple stems ( $A$ ) is dominant to the allele for green stems ( $a$ ).

A horticulturist crosses two tomato plants, both of which have purple stems. Among the offspring produced, some have green stems.

Explain how two purple-stemmed tomato plants can produce offspring with green stems.

Use a Punnett square and probability in your answer.

[6]

In tomato plants, the allele for purple stems ( $A$ ) is dominant to the allele for green stems ( $a$ ).

A horticulturist crosses two tomato plants, both of which have purple stems. Among the offspring produced, some have green stems.

Explain how two purple-stemmed tomato plants can produce offspring with green stems.

Use a Punnett square and probability in your answer.

[6]

Inheritance and genetic crosses Questions