It Is Unusual for a 3-Year-Old Child to Have All

question 5

Multiple Choice

It is unusual for a 3-year-old child to have all twenty primary teeth because second molars do not typically erupt until 4 years of age.

• A) Both the statement and the reason are correct and related.
• B) Both the statement and the reason are correct but are NOT related.
• C) The statement is correct, but the reason is NOT correct.
• D) The statement is NOT correct, but the reason is correct.
• E) NEITHER the statement NOR the reason is correct.

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Definitions:

DNA

The molecule that encodes genetic information in the nucleus of cells, determining the structure, function, and behavior of living organisms.

Junk DNA

A term formerly used to describe portions of the DNA sequence that do not encode for proteins, though many such regions are now known to have regulatory functions.

Gene Function

The specific biological role or activity of a gene product (either RNA or protein), which can influence an organism's traits and is essential for understanding genetics and molecular biology.

Genes

Units of heredity made up of DNA that act as instructions to make molecules called proteins.