DNA Replication

Front

What do enzymes do?

Back

Speed up chemical changes

Front

Which enzyme starts the DNA replication process by unzipping the DNA strand?

Back

Helicase

Front

Which enzyme leaves "primers" on the DNA strand to tell another enzyme where to start building?

Back

Primase

Front

Which enzyme adds new nucleotides to build the new strand of DNA?

Back

DNA Polymerase

Front

Which enzyme glues together the fragments on the lagging strand?

Back

Ligase

Front

DNA strands move in an antiparallel pattern, what does this mean?

Back

the strands move in opposite directions

Front

What is the first step in DNA replication?

Back

Helicase breaks the hydrogen bonds between the bases to split the original strand.

Front

What is the second step in DNA replication?

Back

Primase marks where to start building the new strand of DNA

Front

What is the third step in DNA replication?

Back

DNA Polymerase starts to attach new nucleotides to the original strand

Front

Which of the following is the fourth step in DNA replication?

• Helicase breaks the hydrogen bonds between the bases to split the original strand.
• Primase marks where to start building the new strand of DNA
• DNA Polymerase starts to attach new nucleotides to the original strand
• There are fragments left on the lagging strand when DNA polymerase is done
• Ligase glues together the fragments on the lagging strand of DNA

Back

There are fragments left on the lagging strand when DNA polymerase is done