Replication Quiz

Matthew Meselson and Franklin Stahl discovered that DNA is replicated:

• Conservatively

• Non-conversely

• Semi-conservatively

____________ bonds hold the complementary parent strands together.

• Phoshodiester

• Hydrogen

• Covalent

• Ionic

The DNA double helix is built (written) in the

• 5’ to 3’ direction

• 3’ to 5’ direction

• 3’ to 3’ direction

• 5’ to 5’ direction

In a double helix, the direction of the nucleotides in one strand is opposite to their direction in the other strand. The strands are

• parallel

• homologous

• anti-parallel

Since DNA cannot be fully unwound, many _____ make replication more efficient

• jigsaws

• ligases

• synthesizers

• origins of replication

In DNA replication the ___________ is synthesized continuously in the direction of the replication fork.

• lagging strand

• leading strand

• parent strand

• niece strand

In DNA replication the ___________ is synthesized continuously in the direction of the replication fork.

• lagging strand

• leading strand

• parent strand

• niece strand

Yesterday we learned about DNA Replication, how many steps did we say there were?

• 3

• 5

• 7

• 9

The first step in the process of DNA replication involves _________.

• Gyrase which creates tension in the double helix.

• Gyrase which relieves tension in the double helix.

• Helicase which creates tension in the double helix.

• Helicase which relieves tension from the double helix.

_________ are used to speed up the process of DNA replication

• nucleotides

• phosphodiester bonds

• enzymes

• okazaki fragments