DNA Replication

Front

The picture below shows the steps of DNA replication beginning with step one and ending with step three. Because you are re-using the old (or parent) strand, DNA replication is said to be:

Back

semi-conservative

Front

What is the name of the enzyme that unwinds the DNA?

Back

Helicase

Front

Adenine bonds with:

Back

Thymine

Front

Cytosine bonds with:

Back

Guanine

Front

Which enzyme is responsible for adding the free/new nucleotides to the replicating DNA?

Back

DNA Polymerase

Front

Which is the first step in DNA Replication?

Back

Helicase unzips the original DNA strand

Front

What is the second step in DNA Replication?

Back

RNA Primase lays down an RNA primer

Front

What is the third step in DNA Replication?

Back

DNA Polymerase builds new strands by bringing in new nucleotide bases.

Front

What is the fourth step in DNA Replication?

Back

DNA Polymerase changes the RNA Primer to DNA nucleotides

Front

What is the fifth step in DNA Replication?

Back

Ligase seals the gaps between the fragments