A tall tomato plant with mottled leaves is crossed with a short plant with normal leaves. You get all tall, normal leafed F1 plants. You cross the F1 plants with a short, mottled leafed plant. You observe the following progeny phenotypes: Tall, mottled leaves 395 Short, normal leaves 400 Tall, normal leaves 105 Short, mottle leaves 100 Propose a null hypothesis. What would be the expected values from this hypothesis?

Question

Mathematics

Peter Nixon

15 November, 16:16

A tall tomato plant with mottled leaves is crossed with a short plant with normal leaves. You get all tall, normal leafed F1 plants. You cross the F1 plants with a short, mottled leafed plant. You observe the following progeny phenotypes: Tall, mottled leaves 395 Short, normal leaves 400 Tall, normal leaves 105 Short, mottle leaves 100 Propose a null hypothesis. What would be the expected values from this hypothesis?

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Solomon · Answer 1

Because the null is that the traits are not linked, the expected values would be:

Tall, mottled leaves 250

Short, normal leaves 250

Tall, normal leaves 250

Short, mottled leaves 250