CCBC BIO 110 final exam Questions
with Accurate Answers
Why is only one strand of DNA transcribed into mRNA? - ANSWERSBecause the other
strand would produce the same amino acid sequence in reverse order
During which phase does crossing-over occur? - ANSWERSprophase-I
What is the function of nucleosomes? - ANSWERSTo prevent DNA strands from
tangling.
Which of the following combinations of letters accurately represents two sister
chromatids? - ANSWERSA and C
During which of the following stages of meiosis do the sister chromatids separate? -
ANSWERSanaphase II
Which of the following combinations of letters accurately represents two homologous
chromatids? - ANSWERSA and D
A maternal homologue and a paternal homologue synapse to form: - ANSWERSa
tetrad.
Once nerve cells become mature, they don't usually undergo cell division. Based on
your knowledge of the cell cycle, you would predict that mature nerve cells become
arrested in the __________ of the cell cycle. - ANSWERSG0 phase
The M phase of the cell cycle involves two main processes: - ANSWERSmitosis and
cytokinesis.
The mitotic spindle is made of: - ANSWERSmicrotubules.
A cell is in metaphase if: - ANSWERSthe chromosomes are aligned at the midplane of
the cell.
During prophase, __________ is(are) compacted into visible chromosomes. -
ANSWERSchromatin
__________ contain identical DNA sequences and are held together by __________
during mitosis. - ANSWERSSister chromatids; centromeres
, Duplicated centrioles start moving to opposite poles of a dividing __________ cell
during __________ of the cell cycle. - ANSWERSanimal; prophase
Cytokinesis in animal cells involves contraction of a ring of __________ microfilaments.
Answers:
cyclin plus actin - ANSWERSactin plus myosin
If mitosis produced gametes in sexually reproducing organisms, then: -
ANSWERSchromosome number would double in each generation
Which of the following events does not occur during meiosis I? - ANSWERSseparation
of sister chromatids
The correct number of chromosomes is maintained during sexual reproduction by: -
ANSWERSmeiosis, which reduces the chromosome number by half.
An animal with a diploid number of 36 chromosomes will have __________
chromosomes in its gametes and __________ chromosomes in its somatic cells. -
ANSWERS18;36
DNA is duplicated during __________ of the cell cycle. - ANSWERSS phase
Which of the following represents the overall sequence of events during mitosis? -
ANSWERSprophase − metaphase − anaphase − telophase
Nucleosomes are best described as: - ANSWERSeukaryotic DNA associated with
histone proteins.
Cytokinesis in plant cells begins with the formation of a(n): - ANSWERScell plate
If a cell is dividing by binary fission then you know that: - ANSWERSthe cell is
prokaryotic
If mitosis produced gametes in sexually reproducing organisms, then: -
ANSWERSchromosome number would double in each generation.
In a human cell at prophase I, there are __________ tetrads. - ANSWERS23
Homologous chromosomes undergo synapsis during - ANSWERSprophase I
The cell cycle of a typical somatic cell consists of __________ and M phase. -
ANSWERSinterphase
If a cell is in G2 - ANSWERSit has twice the amount of DNA present in telophase.
with Accurate Answers
Why is only one strand of DNA transcribed into mRNA? - ANSWERSBecause the other
strand would produce the same amino acid sequence in reverse order
During which phase does crossing-over occur? - ANSWERSprophase-I
What is the function of nucleosomes? - ANSWERSTo prevent DNA strands from
tangling.
Which of the following combinations of letters accurately represents two sister
chromatids? - ANSWERSA and C
During which of the following stages of meiosis do the sister chromatids separate? -
ANSWERSanaphase II
Which of the following combinations of letters accurately represents two homologous
chromatids? - ANSWERSA and D
A maternal homologue and a paternal homologue synapse to form: - ANSWERSa
tetrad.
Once nerve cells become mature, they don't usually undergo cell division. Based on
your knowledge of the cell cycle, you would predict that mature nerve cells become
arrested in the __________ of the cell cycle. - ANSWERSG0 phase
The M phase of the cell cycle involves two main processes: - ANSWERSmitosis and
cytokinesis.
The mitotic spindle is made of: - ANSWERSmicrotubules.
A cell is in metaphase if: - ANSWERSthe chromosomes are aligned at the midplane of
the cell.
During prophase, __________ is(are) compacted into visible chromosomes. -
ANSWERSchromatin
__________ contain identical DNA sequences and are held together by __________
during mitosis. - ANSWERSSister chromatids; centromeres
, Duplicated centrioles start moving to opposite poles of a dividing __________ cell
during __________ of the cell cycle. - ANSWERSanimal; prophase
Cytokinesis in animal cells involves contraction of a ring of __________ microfilaments.
Answers:
cyclin plus actin - ANSWERSactin plus myosin
If mitosis produced gametes in sexually reproducing organisms, then: -
ANSWERSchromosome number would double in each generation
Which of the following events does not occur during meiosis I? - ANSWERSseparation
of sister chromatids
The correct number of chromosomes is maintained during sexual reproduction by: -
ANSWERSmeiosis, which reduces the chromosome number by half.
An animal with a diploid number of 36 chromosomes will have __________
chromosomes in its gametes and __________ chromosomes in its somatic cells. -
ANSWERS18;36
DNA is duplicated during __________ of the cell cycle. - ANSWERSS phase
Which of the following represents the overall sequence of events during mitosis? -
ANSWERSprophase − metaphase − anaphase − telophase
Nucleosomes are best described as: - ANSWERSeukaryotic DNA associated with
histone proteins.
Cytokinesis in plant cells begins with the formation of a(n): - ANSWERScell plate
If a cell is dividing by binary fission then you know that: - ANSWERSthe cell is
prokaryotic
If mitosis produced gametes in sexually reproducing organisms, then: -
ANSWERSchromosome number would double in each generation.
In a human cell at prophase I, there are __________ tetrads. - ANSWERS23
Homologous chromosomes undergo synapsis during - ANSWERSprophase I
The cell cycle of a typical somatic cell consists of __________ and M phase. -
ANSWERSinterphase
If a cell is in G2 - ANSWERSit has twice the amount of DNA present in telophase.
