DNA Structure
DNA Structure 2
DNA Replication
DNA Replication 2
Both!
100
The force that holds together two strands of DNA.
Hydrogen bonds (H-bonds)
100
The monomer of nucleic acids.
Nucleotide.
100
What is the purpose of DNA replication?
To make identical DNA for mitosis.
100
The site of DNA replication is called...
Replication Fork
100
The shape of a DNA molecule is...
Double Helix
200
Base pair that complements thymine.
Adenine.
200
DNA Stands for...
Deoxyribonucleic Acid
200
When is DNA replicated?
S phase
200
The role of helicase is to
Unzip/break apart the two strands of DNA for DNA replication.
200
Write the complementary sequence:
A G C T A A C G A T G A C C A
T C G A T T G C T A C T G G T
300
In Chargaff's Base Pair Rules, the amount of thymine is equal to.
Amount of adenine.
300
Prokaryotic DNA is...
Circular
300
In Eukaryotes, DNA replication happens where?
In the nucleus, at multiple different points along the DNA molecule.
300
The enzyme that adds complementary nucleotides to the original strands of DNA
DNA polymerase
300
DNA Replication takes longer in eukaryotes or prokaryotes?
Eukaryotes
400
In Chargoff's base pair rules, the amount of guanine is equal to.
Amount of cytosine.
400
Scientist who died before she could be awarded a Nobel Prize for the structure of DNA.
Rosalind Franklin
400
Why are there leading and lagging strands in DNA replication?
DNA polymerase can only work in one direction.
400
The tips of chromosomes are called
Telomeres
400
Identify the lagging strand (b or c)
C
500
Draw and label a double helix that is 15 nucleotides long.
500
Draw and label a nucleotide.
500
What is the role of telomerase in DNA replication?
An enzyme called telomerase adds short, repeated DNA sequences to telomeres, lengthening the chromosomes slightly and making it less likely that important gene sequences will be lost during replication.
500
Draw and label a diagram showing the semiconservative nature of DNA replication.
500
A scientist conducts a DNA analysis and finds that 22% of the DNA is adenine. How much of the DNA must be cytosine?
28% cytosine