Life Science Final Review quarter 3

Front

Why does DNA replicate?

Back

To create another copy for the new cell.

Front

What are the 4 nitrogen bases in DNA?

Back

Adenine, thymine, cytosine, and guanine.

Front

Which of the following best describes a DNA molecule?

Back

Double helix.

Front

Each chromosome contains thousands of small segments of DNA called..

Back

Genes.

Front

If you change the order of nitrogen bases we could get a..

Back

Different DNA protein.

Front

What is the structure of DNA?

Back

DNA is structured as a double helix.

Front

What are the functions of DNA?

Back

DNA stores genetic information and provides instructions for protein synthesis.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein.

Front

What is the role of nitrogen bases in DNA?

Back

Nitrogen bases pair together to form the rungs of the DNA ladder, encoding genetic information.

Front

What is the difference between DNA and RNA?

Back

DNA contains thymine, while RNA contains uracil; DNA is double-stranded, RNA is single-stranded.