DNA Structure
What is the name of the shape for DNA?
Double Helix
Which base pairs with Adenine (A) in DNA replication?
Thymine (T)
Which enzyme primes the DNA strand?
Primase
DNA replication is semiconservative. How many strands of the original DNA are conserved?
One (1)
How many strands is DNA made of?
Two (2)
Which base pairs with Guanine (G) in DNA replication?
Cytosine (C)
Which enzyme "unzips" the DNA helix?
Helicase
DNA is spiraled and condensed into ___________. Human gamete's have 23 pairs of these.
Chromosomes.
DNA is commonly compared to a ladder. What are the "rungs" of the ladder called?
Nitrogen bases/Nitrogenous bases
If a DNA sample is 40% guanine, what percentage is cytosine?
40%
Which enzyme "glues" the new nitrogen bases onto the old DNA strand?
Ligase
What are the monomer of proteins?
Amino acids
After DNA replication, how many double helixes of DNA are there?
Which nitrogen base replaces Thymine (T) in RNA production?
Uracil (U)
Which enzyme reads and corrects mutations during DNA replication?
DNA Polymerase
The very end of a chromosome is also known as a ______________.
Telomere
Name the three parts of a nucleotide.
1. Phosphate
2. Sugar
3. Nitrogenous base
If a sample of DNA has 20% Adenine. What percentage of Cytosine does it have?
30%
List the 4 enzymes in their proper order for DNA replication. (Primase, Ligase, DNA Polymerase, Helicase)
1. Helicase
2. Primase
3. DNA Polymerase
4. Ligase
What is the name for a "mistake" in DNA?
A mutation.