In Netherlands Dwarf Rabbits,a Gene Showing Intermediate Inheritance Produces Three

question 70

Multiple Choice

In Netherlands dwarf rabbits,a gene showing intermediate inheritance produces three phenotypes.Rabbits that are homozygous for one allele are small;individuals that are homozygous for the other allele are deformed and die;heterozygous individuals are dwarf.If two dwarf rabbits are mated,what proportion of their surviving offspring should be dwarf?

• A) ¹/₄
• B) ¹/₃
• C) ¹/₂
• D) ²/₃
• E) ³/₄

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Definitions:

Hemoglobin

A protein in red blood cells responsible for carrying oxygen from the lungs to the rest of the body.

Live Birth

The process of giving birth to young that have developed inside the body, as opposed to laying eggs.

Neural Crest Cells

A group of embryonic cells found only in vertebrates; develop along the neural tube and migrate to various parts of the embryo where they give rise to (or influence the development of) nerves, head muscles, cranium, jaws, and other structures.

Embryonic Cells

Cells that originate from the embryo and have the potential to develop into any type of body cell, possessing high degrees of plasticity and the ability to proliferate.