The Figure Shown Indicates Two Labrador Retrievers That Are Both

question 32

Multiple Choice

The figure shown indicates two Labrador retrievers that are both homozygous recessive for fur color. Why is one dog brown and the other is yellow?

• A)This is an example of pleiotropy.
• B)This is an example of codominance.
• C)This is an example of epistasis.
• D)This is an example of incomplete dominance.

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Definitions:

Metaphase

A stage of cell division where chromosomes align themselves at the equator of the cell before being separated into each of the two daughter cells.

Telophase

The final phase of cell division, where the chromosomes move to opposite ends of the cell and two nuclei are formed.

Prophase

The first stage of cell division in both mitosis and meiosis where chromosomes condense and the nuclear envelope breaks down.

Nucleolus

A small dense region within the nucleus of a cell, involved in the production and assembly of ribosomes.