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Question 58

A Punnett square for a cross shows three boxes with the dominant characteristic and one without. Which readings of the square are correct? Select all that apply.

  1. Each box shows one possible outcome for any single offspringBonne réponse
  2. The parents will have exactly four offspring
  3. The square gives the expected chance of each outcomeBonne réponse
  4. Exactly one offspring in every four will lack the characteristic

Explication

The boxes set out the outcomes open to each offspring and how likely each one is, which is a statement about chance rather than a headcount. Nothing in the diagram fixes how many offspring are produced or promises that any group of four will contain one of each type.

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Question 58: A Punnett square for a cross shows three boxes with the… · Genetics Basics · Questena