As a hypothetical example, a trait in mice results in abnormallylong tails. You initially have a true-breeding strain with normaltails and a true-breeding strain with long tails. You then make thefollowing types of crosses:Cross 1: When true-breeding females with normal tails arecrossed to true-breeding males with long tails, all F1 offspringhave long tails.Cross 2: When true-breeding females with long tails arecrossed to true-breeding males with normal tails, all F1 offspring have normal tails.Cross 3: When F1 females from cross 1 are crossed to true-breeding males with normal tails, all offspring have normal tailsCross 4: When F1 males from cross 1 are crossed to truebreeding females with long tails, half of the offspring havenormal tails and half have long tails.Explain the pattern of inheritance of this trait.
As a hypothetical example, a trait in mice results in abnormally
long tails. You initially have a true-breeding strain with normal
tails and a true-breeding strain with long tails. You then make the
following types of crosses:
Cross 1: When true-breeding females with normal tails are
crossed to true-breeding males with long tails, all F1 offspring
have long tails.
Cross 2: When true-breeding females with long tails are
crossed to true-breeding males with normal tails, all F1 offspring have normal tails.
Cross 3: When F1 females from cross 1 are crossed to true-breeding males with normal tails, all offspring have normal tailsCross 4: When F1 males from cross 1 are crossed to truebreeding females with long tails, half of the offspring have
normal tails and half have long tails.
Explain the pattern of inheritance of this trait.
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