DNA Replication

Front

DNA replication creates two strands of DNA from one. If pink is parental DNA and blue is new DNA - which picture demonstrates the accepted model of DNA replication after the SECOND replication cycle?

Back

Front

What is the correct order of DNA replication?

Back

3, 4, 1, 2

Front

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

Back

Helicase

Front

Which enzyme synthesises the new DNA strand?

Back

DNA Pol III

Front

Which letter in the picture below depicts the leading strand in DNA replication? Options:

A

,

C

,

B

,

None of the above

Back

A

Front

What is the function of topoisomerase?

Back

To remove supercoiling in front of replication fork

Front

What is the last step in DNA replication?

Back

Ligase joins together fragments on the lagging strand

Front

Which enzyme creates an RNA primer?

Back

Primase

Front

Which of the following is correct with respect to DNA replication?

Helicase stabilises ssDNA

,

Ligase creates RNA primers

,

DNA Pol I is the main polymerising enzyme

,

The lagging strand is made up of Okazaki fragments

Back

The lagging strand is made up of Okazaki fragments

Front

What prevents DNA strands from reannealing at the replication fork?

Back

Single-stranded binding proteins