A type of mouse may have round ears or pointed ears. A female mouse homozygous for pointed ears is crossed with a male mouse homozygous for round ears. All the male offspring have pointed ears and all the female offspring have round ears. When the F1 offspring are crossed with each other, the resulting F2 are produced in the following ratios: Males: 3 pointed : 1 rounded Females: 3 rounded : 1 pointed Explain the inheritance mechanism that produces these results and indicate the dominance relationship.

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Description: A type of mouse may have round ears or pointed ears. A female mouse homozygous for pointed ears is crossed with a male mouse homozygous for round ears. All the male offspring have pointed ears and all the female offspring have round ears. When the F1

The basic and functional units of inheritance are genes. The nucleotide sequences of genes are…

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Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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A type of mouse may have round ears or pointed ears. A female mouse homozygous for pointed ears is crossed with a male mouse homozygous for round ears. All the male offspring have pointed ears and all the female offspring have round ears. When the F₁ offspring are crossed with each other, the resulting F₂ are produced in the following ratios:

Males: 3 pointed : 1 rounded
Females: 3 rounded : 1 pointed

Explain the inheritance mechanism that produces these results and indicate the dominance relationship.

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