FNU A Nucleosome Consists of DNA Wrapped Around Scaffolding Proteins MCQs

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1. 
   
   Question 1

   1 PointOnce nerve cells become mature, they do not typically undergo cell division. Based on your knowledge of the cell cycle, you might predict that mature nerve cells become arrested in the ____ of the cell cycle.

   1. G2 phase
   2. prophase
   3. G1 phase
   4. S phase
   5. G0 phase

2. 
   
   Question 2

   1 PointA nucleosome consists of DNA wrapped around scaffolding proteins.__________________

   1. True
   2. False

3. 
   
   Question 3

   1 PointChromosomes are duplicated during the ____ of the cell cycle.

   1. S phase
   2. metaphase
   3. prophase
   4. G1 phase
   5. G2 phase

4. 
   
   Question 4

   1 PointMicrotubules of the mitotic spindle attach directly to each chromosome at the centromere.__________________

   1. True
   2. False

5. 
   
   Question 5

   1 PointHomologous chromosomes can be identified and/or characterized by:

   1. maternal chromosomes only.
   2. paternal chromosomes only.
   3. their similar and characteristic staining patterns.
   4. those chromosomes that do not have partners.
   5. the different centromere positions in the maternal vs. paternal chromosomes.

6. 
   
   Question 6

   1 PointA cell in the G2 phase:

   1. has twice the amount of DNA present in a telophase nucleus.
   2. has visibly distinct chromosomes.
   3. is in mitosis.
   4. is in cytokinesis.
   5. lacks a visible nuclear membrane.

7. 
   
   Question 7

   1 PointAn animal zygote is a(n) haploid cell.__________________

   1. True
   2. False

8. 
   
   Question 8

   1 Point____ contain identical DNA sequences and are held together by ____ during mitosis.

   1. Sister chromatids; spindle fibers
   2. Daughter chromosomes; hydrogen bonding
   3. Sister chromatids; cohesin proteins
   4. Sister chromosomes; histone proteins
   5. Daughter chromosomes; ionic bonding

9. 
   
   Question 9

   1 PointAn animal with a diploid number of 36 chromosomes will have ____ chromosomes in its gametes and ____ chromosomes in its somatic cells.

   1. 36; 18
   2. 18; 36
   3. 36; 36
   4. 36; 72
   5. 18; 18

10. 
    
    Question 10

    1 PointIn a human cell at prophase I, there are ____ tetrads.

    1. 23
    2. 4
    3. 46
    4. 92
    5. 2