Ccbc Bio 110 Final Exam Complete 300 Questions And Correct Detailed Answers - Just Released

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CCBC BIO 110 FINAL EXAM COMPLETE 300
QUESTIONS AND CORRECT DETAILED
ANSWERS - JUST RELEASED

CCBC Bio 110 Final EXAM

QUESTION: 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. - ANSWER-G0 phase




QUESTION: The M phase of the cell cycle involves two main processes: - ANSWER-mitosis and
cytokinesis.




QUESTION: The mitotic spindle is made of: - ANSWER-microtubules.




QUESTION: A cell is in metaphase if: - ANSWER-the chromosomes are aligned at the midplane
of the cell.




QUESTION: During prophase, __________ is(are) compacted into visible chromosomes. -
ANSWER-chromatin




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QUESTION: __________ contain identical DNA sequences and are held together by __________
during mitosis. - ANSWER-Sister chromatids; centromeres




QUESTION: Duplicated centrioles start moving to opposite poles of a dividing __________ cell
during __________ of the cell cycle. - ANSWER-animal; prophase




QUESTION: Cytokinesis in animal cells involves contraction of a ring of __________
microfilaments.

Answers:

cyclin plus actin - ANSWER-actin plus myosin




Why is only one strand of DNA transcribed into mRNA? - ANSWER-Because the other strand
would produce the same amino acid sequence in reverse order




QUESTION: During which phase does crossing-over occur? - ANSWER-prophase-I




QUESTION: What is the function of nucleosomes? - ANSWER-To prevent DNA strands from
tangling.




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QUESTION: Which of the following combinations of letters accurately represents two sister
chromatids? - ANSWER-A and C




QUESTION: During which of the following stages of meiosis do the sister chromatids separate? -
ANSWER-anaphase II




QUESTION: Which of the following combinations of letters accurately represents two
homologous chromatids? - ANSWER-A and D




QUESTION: A maternal homologue and a paternal homologue synapse to form: - ANSWER-a
tetrad.




QUESTION: If mitosis produced gametes in sexually reproducing organisms, then: - ANSWER-
chromosome number would double in each generation




QUESTION: Which of the following events does not occur during meiosis I? - ANSWER-
separation of sister chromatids




QUESTION: The correct number of chromosomes is maintained during sexual reproduction by: -
ANSWER-meiosis, which reduces the chromosome number by half.




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QUESTION: An animal with a diploid number of 36 chromosomes will have __________
chromosomes in its gametes and __________ chromosomes in its somatic cells. - ANSWER-
18;36




QUESTION: DNA is duplicated during __________ of the cell cycle. - ANSWER-S phase




QUESTION: Which of the following represents the overall sequence of events during mitosis? -
ANSWER-prophase − metaphase − anaphase − telophase




QUESTION: Nucleosomes are best described as: - ANSWER-eukaryotic DNA associated with
histone proteins.




QUESTION: Cytokinesis in plant cells begins with the formation of a(n): - ANSWER-cell plate




QUESTION: If a cell is dividing by binary fission then you know that: - ANSWER-the cell is
prokaryotic




QUESTION: If mitosis produced gametes in sexually reproducing organisms, then: - ANSWER-
chromosome number would double in each generation.




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