HB Unit 4 DNA and Cell Cycle Review 1

Front

What letter represents a purine?

Back

Z

Front

What type of bond joins nitrogenous bases?

Back

Hydrogen bonds

Front

What occurs during the G2 phase of the cell cycle?

Back

Checks for errors in DNA

Front

Does mitosis result in identical daughter cells?

Back

True

Front

Who provided clear x-ray crystallography images of DNA?

Back

Franklin

Front

What are the two types of nitrogenous bases?

Back

Purines and pyrimidines

Front

Name the purines found in DNA.

Back

Adenine (A) and Guanine (G)

Front

Name the pyrimidines found in DNA.

Back

Cytosine (C) and Thymine (T)

Front

What is the role of DNA polymerase during DNA replication?

Back

It synthesizes new DNA strands by adding nucleotides.

Front

What is the function of the cell cycle checkpoints?

Back

To ensure proper cell division and prevent errors.