2. Mendel's Laws of Inheritance
Monohybrid Cross
2:02 minutes
Problem 10g
Textbook Question
Textbook QuestionThe dorsal pigment pattern of frogs can be either 'leopard' (white pigment between dark spots) or 'mottled' (pigment between spots appears mottled). The trait is controlled by an autosomal gene. Males and females are selected from pure-breeding populations, and a pair of reciprocal crosses is performed. The cross results are shown below.
Cross 1: P₁: Male leopard x male mottled
F₁: All mottled
F₂: 70 mottled, 22 leopard
Cross 2: P₁: Male mottled x female leopard
F₁: All mottled
F₂: 50 mottled, 18 leopard
Compare and contrast the results of the reciprocal crosses in the context of autosomal gene inheritance.
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