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Mouse crosses: Cross1: Females with normal tail crossed with male with long tail

ID: 7647 • Letter: M

Question

Mouse crosses:

Cross1: Females with normal tail crossed with male with long tail. All F1 offspring have long tails.

Cross2: Females with long tail crossed with male with normal tail. All F1 offspring have normal tails.

Cross3: F1 females from cross 1 are crossed to male with normal tail. All offspring have normal tails.

Cross4: F1 males from cross 1 are crossed to female with long tail. Half of the offspring have normal tail and half have long tail.

Any idea what kind of inheritance pattern is this? I think it is Non Mendelian inheritance, but failed to draw out which one is it.

Explanation / Answer

incomplete dominance

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