DNA Structure and Replication

________is the name of the 5 carbon sugar that is part of the DNA nucleotide.

Ribose

The______ strand is the strand polymerized by DNA polymerase more slowly than the_______ strand because DNA polymerase must polymerase that strand in small sections.

lagging; leading

If_____were to malfunction, the result would be several nicks or breaks in the DNA backbone.

ligase

The difference between_____and_____ is the presence or absence of a 2’ OH group off the ribose sugar.

nucleotides ; ribose

If______were to malfunction both the leading and the lagging strands of DNA replication would be unable to start due to the lack of a_______.

primase; primer

The double-stranded structure of DNA is called______ because at one end of the DNA will be two different functional groups. One strand will end with a__________ and the other strand will end with a________.

antiparallel; phosphate group; 3’OH group

________unwinds DNA and pulls the two strands apart.

Helicase

The________strand is polymerized in the 5’ to 3’ direction towards the_________ so it is made in one complete segment.

leading strand ; replication fork

DNA polymerase requires an initial ______ to start replication which is added by______.

primer ; primase

Linear chromosome ends require_______ to extend the ends by added repeated sections to the 3’ ends.

telomerase