2. This is what DNA would look like
Cytosine
flattened out before replication.
Guanine
Adenine
Thymin
e
Hydrogen Bond
Sugar
This is how DNA usually is, in a
twisted strand called a double helix. Phosphate
4. Cytosine
Guanine
Adenine
Thymin
e
Hydrogen Bond
Sugar
Phosphate
Nucleotide Nucleotide
5. After replication the DNA Cytosine
strands would look like Guanine
this if laid out flat.
Adenine
Thymin
e
Hydrogen Bond
Sugar
Phosphate
DNA strand after replication in the twisted double
helix form.
6. DNA Replication
S t e p s o f D N A Re p l i c a t i o n Mitosis
1. The double helix must DNA replication occurs in the S
“unwind” phase of the interphase stage of
2. Nucleotides must be added in mitosis. This is because all the
the correct order to create a daughter cells must receive the
complementary strand same complement of
chromosomes as the parent cell.
3. The new strand must be sealed
up
7. Purpose of DNA Replication
The purpose of DNA replication is to hand down genetic material so that
new cells can grow. Dan contains the genetic instructions used in the
development and function of all known living organisms. New cells need
to be made for you to live, and new cells wouldn’t be there if DNA
replication didn’t happen.
8. DNA Mutations
There are a few different types of mutations that can occur in DNA, such
as addition, deletion, and substitution. These mutations can cause
negative effects on your body. Some examples of these negative affects
would be cancer, diabetes and even death.
9. DNA Replication Information
Telomeres- protective caps made of proteins that are found on the ends of
chromosomes in cells
Okazaki fragments- short fragment of DNA created on the lagging strand
during DNA replication
DNA ligase- enzyme that repairs or seals together two fragments of
DNA, joins DNA strands
Telomerase- enzyme that adds nucleotides to telomeres, especially in
cancer cells
Cancer- grows rapidly because of the telomerase
Transplanted cells- therapy that allows the cells of the body to be
removed, fixed with a gene, and put back in
Cloning- process of creating genetically identical copies of biological
matter
Aging- certain cells grow in certain cultures
