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Question 70

A class crosses many heterozygous pea plants and compares the seedlings they count with the predicted 3 to 1 ratio. Which statements about that comparison are true? Select all that apply.

  1. Counting a large number of seedlings usually gives a closer match to the predictionCorrect answer
  2. Counting more seedlings pushes the results further from the prediction
  3. Small groups of seedlings vary noticeably from one group to the nextCorrect answer
  4. A group of seedlings that does not match exactly shows the prediction is wrong

Explanation

Chance evens out as the count grows, so the proportions in a large batch sit close to the predicted ones while a handful of seedlings can land almost anywhere. Treating a mismatch in a small group as evidence against the prediction confuses ordinary scatter between small samples with a fault in the prediction itself.

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Question 70: A class crosses many heterozygous pea plants and compares… · Genetics Basics · Questena