DNA Replication Review

Front

What happens when a gene is turned off?

Back

It is not expressed.

Front

What is the fourth step in DNA replication?

Back

Ligase knits together fragments on the lagging strand.

Front

In a double-stranded DNA molecule, which base is always equal to the amount of Adenine?

Back

Thymine.

Front

On which strand of DNA do Okazaki fragments appear during replication?

Back

Lagging strand.

Front

What does DNA stand for?

Back

Deoxyribonucleic acid.

Front

What is the role of DNA helicase in DNA replication?

Back

It unwinds the original DNA strand.

Front

What is the function of RNA primase in DNA replication?

Back

It lays down RNA primer for new nucleotide bases.

Front

What is the role of DNA polymerase in DNA replication?

Back

It builds new strands by bringing in new nucleotide bases.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the three components of a nucleotide?

Back

A phosphate group, a sugar (deoxyribose), and a nitrogenous base.