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Chapter 10!

Quiz by nichole stokes

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12 questions
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  • Q1
    Binary fission in prokaryotes does not require the.....
    Separation of daughter cells by septum formation
    Elongation of the cell
    Replication of DNA
    Assembly of the nuclear envelope
    45s
  • Q2
    Chromatin is composed of ?
    RNA and protein
    DNA and protein
    Sister chromatids
    Chromosomes
    45s
  • Q3
    What is a nucleosome?
    A region of a chromosome made up of multiple loops of chromtin
    A region in the cell's nucleus that contains euchromatin
    A region of DNA wound around histone proteins
    A 30-nm fiber found in chromatin
    45s
  • Q4
    What is the role of cohesion proteins in cell division?
    They hold the DNA of the sister chromatids together
    They help the cell divide into two daughter cells
    They organize the DNA of the chromosome s into highly condensed structures
    They connect mircotubules and chromosomes
    45s
  • Q5
    The kinetochore is a structure that functions to...
    Aid in chromosomes cohesion
    Connect the centromere to microtubules
    Connect centrioles to microtubules
    Aid in chromosome condensation
    45s
  • Q6
    Separation of the sister chromatids occurs during....
    Prophase
    Prometaphase
    Telophase
    Anaphase
    45s
  • Q7
    Why is cytokinesis an important part of cell division?
    It is responsible for the proper separation of the cytoplasmic contents
    It allows cells to halt at checkpoints
    It triggers the movement of a cell through the cell cycle
    It is responsible for the proper separation of genetic information
    45s
  • Q8
    Cyclin-dependent kinases (Cdks) are regulated by.....
    The periodic destruction of cyclins
    Both a and b are correct
    Bipolar attachment of chromosomes to the spindle
    DNA synthesis
    45s
  • Q9
    Genetically, proto-oncogenes act in a dominant fashion. This is because....
    They act in a loss-of-function fashion to turn off the cell cycle
    They act in a gain-of-function fashion to turn on the cell cycle
    They require that both genomic copies are altered to affect function
    There is only one copy of each proto-oncogene in the genome
    45s
  • Q10
    The metaphase to anaphase transition involves....
    Completing DNA replication of centromeres allowing chromosomes to be pulled
    New force being generated to pull the chromatids apart
    Loss of cohesion between sister chromatids
    An increase in force on sister chromatids to pull them apart
    45s
  • Q11
    The main difference between bacterial cell division and eukaryotic cell division is that....
    Eukaryotes mark their chromosomes to identify them and bacteria do not
    None of the above is correct
    Bacterial DNA replication and chromosome segregation are concerted processes but in eukaryotes they are separated in time
    Since bacteria only have one chromosome, they can count the number of copies in the cell
    45s
  • Q12
    In animals cells, cytokinesis is accomplished by a contractile ring containing actin. The related process in bacteria is.....
    Cytokinesis, which requires formation of a cell plate via vesicular fusion
    Chromosome segregation, which also appears to use an actin-like protein
    Septation via a ring of FtsZ protein, which is a tubulin-like protein
    Septation via a ring of FtsZ protein, which is a actin-like protein
    45s

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