Troy's Weight Has Always Been Around 180 Pounds

question 12

Multiple Choice

Troy's weight has always been around 180 pounds. When he gains a few pounds, he usually drops the extra weight relatively quickly but rarely drops below 180. Troy's ability to maintain a "standard" weight exemplifies which theory?

• A) Genetic determination
• B) Basal metabolism
• C) Set point
• D) Environmental affect

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Definitions:

Rod-Shaped Structures

In biology, refers to cells or parts of cells that are elongated and cylindrical, often found in the retina where they are sensitive to light but not color.

Chromosomes

are long strands of DNA found in the nucleus of cells that carry genetic information necessary for reproduction, growth, and maintenance of organisms.

Genes

Genes are the basic units of heredity in living organisms, made up of DNA, that carry the instructions for the development, functioning, and reproduction of cells.

Dominant Gene

A gene that is expressed in the phenotype over a recessive gene when an individual is heterozygous for a particular trait.