What enzyme opens up the DNA strand during replication?
DNA helicase
100
Where in the chromosome does DNA replication start?
The origin of replication.
200
Where is DNA found in a eukaryotic cell?
The Nucleus
200
What is attached to the 5' carbon of the sugar in a nucleotide?
A phosphate group.
200
How many strands does RNA have?
What is 1 strand.
200
What is the new strand of DNA created during replication called?
The daughter strand.
200
The two strands of DNA run _____________ to each other.
anti parallel.
300
What are the three main parts of a nucleotide?
Phosphate group, base and sugar.
300
What type of bond holds the nitrogen bases on the same strand together?
A phosphodiester bond
300
What does RNA stand for?
Ribonucleic Acid.
300
How many leading strands are there in a replication bubble?
There are two.
300
How many lagging strands are there in a replication bubble?
There are two.
400
What is attached to the 1' carbon of the sugar in a nucleotide?
A base.
400
What two atoms are involved in a phosphodiester bond?
Phosphorous and oxygen
400
What is different between a DNA sugar and an RNA sugar? Be specific..
What is the RNA sugar has an OH group on the 2'carbon while the DNA sugar has an H on the 2'carbon.
400
Compared to the direction the replication fork is moving, which direction is the leading strand being made in? Which direction is the lagging strand being made in?
Leading strand - same direction as the fork is moving
Lagging strand - opposite direction as the fork is moving
400
What is the complementary DNA sequence of 5'CCAA3'
What is 3'GGTT 5'
500
What kinds of bonds holds opposite DNA strands together?
Hydrogen bonds.
500
List the five levels of DNA structure from most basic to most complex.