Mendel Called Physical Units Responsible for the Inheritance of Traits

question 29

Multiple Choice

Mendel called physical units responsible for the inheritance of traits "characters." The basis for his first law is that characters

• A) separate from each other during meiosis.
• B) are carried on separate chromosomes.
• C) can exist as multiple alleles.
• D) are inherited in random combinations.
• E) can be cloned using nuclear transfer.

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Definitions:

Pyloric Sphincter

the muscular valve regulating the passage of food from the stomach to the small intestine.

Muscularis

The layer of muscle found in various parts of the gastrointestinal tract, involved in peristalsis and the control of food movement.

Quadrate Lobes

Generally refers to a lobe of the liver, but "quadrate lobes" as plural is not a standard anatomical term, thus could be considered incorrect without further context.

Simple Columnar Epithelium

A single layer of tall, closely packed cells, lining organs such as the intestines and involved in absorption and secretion.