Bio 1010 Final Exam 3 Questions and
All Correct Answers 2025-2026
Updated.
What is the monomer that makes up DNA?
a. Nucleic acid
b. Nucleotides
c. Amino acids
d. Sugars - Answer b. Nucleotides
When a cell undergoes reproduction, or *?*, two "daughter cells are produced that are
genetically identical to each other and to the "parent" cell - Answer cell division
When a cell undergoes cell division there is *more/equal/less* DNA in the replicated cell -
Answer equal
In *?*, DNA is passed from parent to offspring - Answer reproduction
Organisms that reproduce by making identical copies of themselves use *?* (such as
*prokaryotes*) - Answer asexual reproduction
*?* requires the fertilization of an egg and sperm and makes unique, multicellular organisms -
Answer sexual reproduction
There are *?* ft of DNA in the nucleus of every cell of your body - Answer 6
Most of a cell's DNA is organized into structures called *?* - Answer chromosomes
Chromosomes are DNA wrapped around *proteins* called *?* - Answer histones
Small sections of *?* wrap around a set of *histones*, forming something that looks like a bead.
The 'beaded string' continues to wrap on itself over and over until it forms a very *condensed
structure* - Answer DNA
T/F
,Once a chromosome is formed, it cannot become loose again. - Answer False. It can go back
and forth between being tightly wrapped up and loosely held together.
T/F
Cells divide by simply splitting half. - Answer False
T/F
Cells pass through a series of phases in order to divide. - Answer True
The *?* is a sequence of events that make up the life of a typical cell; an ordered sequence of
stages - Answer Cell cycle
The *cell cycle* is made of *?* and *?* phases - Answer preparatory and division
In the cell cycle, one cell becomes two *?* cells - Answer identical
*?* includes the stages of the cell cycle in which cells spend their time preparing for cell division
(G1, S, G2) - Answer Interphase
*?* is the phase that cells spend most of their time in - Answer Interphase
What are the 3 stages of Interphase? - Answer G1, S, G2
What happens in the G1 phase of interphase? - Answer rapid cell growth and metabolism
(Gap 1)
What happens in the S phase of interphase? - Answer DNA replication occurs (Synthesis - to
put together)
What happens in the G2 phase of interphase? - Answer Production of new organelles; cell
prepares for division (Gap 2)
Sometimes the cell presses pause between G1 and S during interphase. This phase in between
G1 and S is called *?* - Answer G0
In phase *?*, the cell does not divide, but it can still go back and divide if required to (can pause
for days to years) - Answer G0
, Give an example of G0 phase in humans. - Answer liver cells go into G0 which is why they
can regrow themselves. Having a transplant makes livers come out of G0 so they finish the cycle
and continue to grow
*Chromosomes* duplicate during *?* phase - Answer S
The two copies of the chromosomes are called *?* - Answer sister chromatids
The *?* is the region of a chromosome where sister chromatids are joined - Answer
centromere
Before the S phase, a chromosome has 1 long strand of DNA and 1 copy of DNA molecule. After
the S phase, there are 2 separate strands of DNA and 2 copies of the DNA molecule in the *?* -
Answer sister chromatids
The *centromere* is made of very condensed *?* - Answer DNA
T/F
Chromatids cannot be separated. - Answer False
*Chromosomes* duplicate during the *S phase* and separate in *?* - Answer cell division
The *?* phase is the part of the cell cycle when the cell is actually dividing - Answer M phase
(mitotic phase)
What are the two overlapping stages of the mitotic phase? - Answer Mitosis and Cytokinesis
*?* is when the nucleus and its contents divide and are evenly distributed into two nuclei (DNA
is duplicated) - Answer Mitosis
*?* is when the cytoplasm along with the organelles is divide in two. (physical splitting of
cytoplasm, plasma membrane, other organelles) - Answer Cytokinesis
M phase takes up about *?* percent of a cell's life - Answer 10%
Interphase takes up about *?* percent of a cell's life - Answer 90%
All Correct Answers 2025-2026
Updated.
What is the monomer that makes up DNA?
a. Nucleic acid
b. Nucleotides
c. Amino acids
d. Sugars - Answer b. Nucleotides
When a cell undergoes reproduction, or *?*, two "daughter cells are produced that are
genetically identical to each other and to the "parent" cell - Answer cell division
When a cell undergoes cell division there is *more/equal/less* DNA in the replicated cell -
Answer equal
In *?*, DNA is passed from parent to offspring - Answer reproduction
Organisms that reproduce by making identical copies of themselves use *?* (such as
*prokaryotes*) - Answer asexual reproduction
*?* requires the fertilization of an egg and sperm and makes unique, multicellular organisms -
Answer sexual reproduction
There are *?* ft of DNA in the nucleus of every cell of your body - Answer 6
Most of a cell's DNA is organized into structures called *?* - Answer chromosomes
Chromosomes are DNA wrapped around *proteins* called *?* - Answer histones
Small sections of *?* wrap around a set of *histones*, forming something that looks like a bead.
The 'beaded string' continues to wrap on itself over and over until it forms a very *condensed
structure* - Answer DNA
T/F
,Once a chromosome is formed, it cannot become loose again. - Answer False. It can go back
and forth between being tightly wrapped up and loosely held together.
T/F
Cells divide by simply splitting half. - Answer False
T/F
Cells pass through a series of phases in order to divide. - Answer True
The *?* is a sequence of events that make up the life of a typical cell; an ordered sequence of
stages - Answer Cell cycle
The *cell cycle* is made of *?* and *?* phases - Answer preparatory and division
In the cell cycle, one cell becomes two *?* cells - Answer identical
*?* includes the stages of the cell cycle in which cells spend their time preparing for cell division
(G1, S, G2) - Answer Interphase
*?* is the phase that cells spend most of their time in - Answer Interphase
What are the 3 stages of Interphase? - Answer G1, S, G2
What happens in the G1 phase of interphase? - Answer rapid cell growth and metabolism
(Gap 1)
What happens in the S phase of interphase? - Answer DNA replication occurs (Synthesis - to
put together)
What happens in the G2 phase of interphase? - Answer Production of new organelles; cell
prepares for division (Gap 2)
Sometimes the cell presses pause between G1 and S during interphase. This phase in between
G1 and S is called *?* - Answer G0
In phase *?*, the cell does not divide, but it can still go back and divide if required to (can pause
for days to years) - Answer G0
, Give an example of G0 phase in humans. - Answer liver cells go into G0 which is why they
can regrow themselves. Having a transplant makes livers come out of G0 so they finish the cycle
and continue to grow
*Chromosomes* duplicate during *?* phase - Answer S
The two copies of the chromosomes are called *?* - Answer sister chromatids
The *?* is the region of a chromosome where sister chromatids are joined - Answer
centromere
Before the S phase, a chromosome has 1 long strand of DNA and 1 copy of DNA molecule. After
the S phase, there are 2 separate strands of DNA and 2 copies of the DNA molecule in the *?* -
Answer sister chromatids
The *centromere* is made of very condensed *?* - Answer DNA
T/F
Chromatids cannot be separated. - Answer False
*Chromosomes* duplicate during the *S phase* and separate in *?* - Answer cell division
The *?* phase is the part of the cell cycle when the cell is actually dividing - Answer M phase
(mitotic phase)
What are the two overlapping stages of the mitotic phase? - Answer Mitosis and Cytokinesis
*?* is when the nucleus and its contents divide and are evenly distributed into two nuclei (DNA
is duplicated) - Answer Mitosis
*?* is when the cytoplasm along with the organelles is divide in two. (physical splitting of
cytoplasm, plasma membrane, other organelles) - Answer Cytokinesis
M phase takes up about *?* percent of a cell's life - Answer 10%
Interphase takes up about *?* percent of a cell's life - Answer 90%
