As a hypothetical example, a trait in mice results in mice with 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 F( offspring have long tails.
Cross 2: When true-breeding females with long tails are crossed to true-breeding males with normal tails, all F, offspring have normal tails.
Cross 3: When F, females from cross 1 are crossed to true-breeding males with normal tails, all offspring have normal tails.
Cross 4: When F, males from cross 1 are crossed to true-breeding females with long tails, half of the offspring have normal tails and half have long tails.
Explain the pattern of inheritance of this trait.