DNA ______________ is an enzyme that works in moving nucleotides to the parent strand of DNA while checking for errors.
Helicase
Polymerase
Rigase
Ligase
Deoxyribose
A five-carbon sugar that is a component of DNA nucleotides
The weak bonds that hold the nitrogen bases together
The base that pairs with Guanine with DNA
The base that pairs with Adenine in DNA
This model of the cell cycle includes two arrows that each represent a process in the cycle. What do the two arrows represent?
Arrow 1 represents prophase, and Arrow 2 represents interpha
Arrow 1 represents meiosis, and Arrow 2 represents prophase.
Arrow 1 represents mitosis, and Arrow 2 represents meiosis.
Arrow 1 represents interphase, and Arrow 2 represents mitosi
DNA replication results in two DNA molecules,
one with two new strands and the other with two original str
each with one new strand and one original strand.
each with two new strands.
each with two original strands.
Thymine pairs with
Cytosine
Adenine
Guanine
Thymine
In one type of cell division, a single cell forms two new cells. This process is called the cell cycle. What is the reason that human skin cells frequently undergo division?
to prevent bruises on the body
to replace dead or damaged skin cells
to get energy for the body
to replace dead or damaged nerve cells
The division of the cytoplasm during the cell cycle is called
meiosis
cytokinesis
mitosis
telophase
Cytosine pairs with
Guanine
Thymine
Cytosine
Adenine
Adenine pairs with
Cytosine
Thymine
Adenine
Guanine
In order to ensure an exact copy of DNA is passed on, replication must occur before
meiosis
mitosis
protein synthesis
glycolysis
What structures allow chromosomes to separate and move during mitosis?
chromosomes
spindle fibers
chromatins
chromatids
Which statement BEST describes the semiconservative replication sequence of the DNA sequence CCGCAT?
Identical bases in the same order
Identical bases in the reverse order
complementary bases in the reverse order
Complementary bases in the same order
People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?
G2
G1
S
G0
DNA __________ is an enzyme that is vital in unzipping the original DNA molecule.
Rigase
Helicase
Ligase
Polymerase
The length of the cell cycle is the same for all types of cells
IDK
Fasle
True
Maybe?
What is the G0 phase of the cell cycle?
The cell undergoes mitosis
A phase of interphase where the DNA is copied
The phase of mitosis in which the chromosomes are crossing over
A phase outside of the cell cycle, where the cell is neither dividing or growing
Which part of the model represents the S phase?
I
III
IV
II
Guanine pairs with
Cytosine
Thymine
Guanine
Adenine
Which if the following are an example of cells that enter the G0 phase and stay there forever?
liver cells
nerve cells
bacteria cells
skin cells
What is cancer?
Uncontrolled cell division
benign cells
mitosis
tumors
If a DNA molecule is 35% Guanine, what percent of the DNA molecule is Thymine?
15%
35%
70%
30%
The stage of the cell cycle that occupies most of the cell’s life is
interphase (G1, G0, Synthesis and G2)
G1
Cytokinesis
Mitosis
DNA helicase
The base that pairs with Cytosine in DNA
The base that pairs with Thymine in DNA
A bond that holds the phosphate and deoxyribose together
An enzyme that unwinds "unzips" the DNA double helix during
Phosphate and Deoxyribose
Enzyme involved in DNA replication that joins individual nuc
mass of rapidly dividing cells that can damage surrounding t
A disease in which some body cells grow and divide uncontrol
The molecules that make up the backbone (sides) of the DNA l