Unit 4: Genetics (Part 1) Test Review

Front

What happens in cytokinesis?

Back

The cytoplasm divides into two new daughter cells.

Front

What is the process in which DNA makes an exact copy of itself?

Back

Replication.

Front

If copying the template strand, what will the first four bases of the new DNA strand look like?

Back

TGGT.

Front

Why does DNA replicate?

Back

To create another copy of DNA for a new cell.

Front

Which phase of the cell cycle is #2?

Back

Prophase.

Front

What is the function of DNA?

Back

To store and transmit genetic information.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the three main components of a nucleotide?

Back

A phosphate group, a sugar, and a nitrogenous base.

Front

What is the role of helicase in DNA replication?

Back

To unwind the DNA double helix.

Front

What is the difference between DNA and RNA?

Back

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