DNA Replication
Which of the following is required for DNA replication to occur?
-DNA helicase -DNA ligase -DNA polymerase
If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?
20
DNA Polymerase can only READ DNA ___________; and can only BUILD/ADD DNA ______________.
3' to 5' . 5' to 3'
Direction that DNA is READ?
5' to 3'
Direction that DNA is replicated
5' to 3'
Does A, B, or C represent the way DNA replicates?
A
The separation of the two single strands of DNA creates a 'Y' shape?
A replication fork
Letter B represents the
DNA Ligase
Which of the following must happen first in order for DNA replication to occur?
DNA is unwound
Letter D represents the
DNA polymerase working continuously
Describes the twisted ladder-like shape of a DNA molecule
Double Helix
DNA replication results in two DNA molecules,
Each one with one new strand and one original strand.
This structure is an Okazaki fragment.
F
The enzyme _____ unzips the DNA strand during Replication.
Helicase
Which of the following sequences expresses the correct order of enzyme function in DNA replication?
Helicase---DNA polymerase--ligase
What strand is copied faster?
Leading
The enzyme ________ adds on the free nucleotides to the leading strand during DNA Replication
Polymerase
A process in which DNA has the unique ability to make an exact copy of itself.
Replication
Which sequence of DNA bases would pair with this partial strand ATG TGA CAG?
TAC ACT GTC
What are the 4 nitrogen bases?
adenine, thymine cytosine, and guanine
Which 2 molecules form the sides (backbone) of the DNA ladder?
deoxyribose sugar and phosphate
Which choice represents the correct order of organization from smallest to largest?
gene, chromosome, cell, organism
Nitrogenous bases are joined by which type of bond?
hydrogen bonds
Why is DNA important?
it serves as the blueprint for traits of all living things
Letter E represents the
lagging strand
Okazaki fragments form on the:
lagging strand
Name this structure w/ Deoxyribose sugar, base, and a phosphate
nucelotide
Which organelle is DNA usually found in?
nucleus
What are the three components of a nucleotide?
sugar, phosphate, nitrogen base
What determines the code, or information, of a DNA molecule?
the order (sequence) of the nitrogen bases