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2. The answer is is "c" . Identify the processes which occur during
the various stages of the cell cycle in your notes. Most of your
body cells are in the G1 stage. Many cells remain in this stage for their
entire life.
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3. The answer is "c". DNA replicates during the synthesis stage
preparing the cell for mitosis.
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4. The answer is "a". All working cells are in this stage. The cells
you studied in miniunit Beta were in the G1 stage of interphase.
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5. The answer is "a". Cytokinesis occurs at the end of the mitotic
stage "K". (figure below)
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6. The answer is "b". Each mitotic cell cycle produces two new
cells containing the same number of chromosomes as the mother cell.
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7. The answer is "c". Both daughter cells will have the same number
of chromosomes as the original mother cell.
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8. The answer is "d". During the synthesis stage the DNA is replicated;
therefore the G2 stage will have twice the number of DNA molecules. During
the G-1 stage each "chromosome" consists of a single DNA molecule
and during the G-2 stage each "chromosome" consists of two DNA molecules.
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9. The answer is "c". Count the number of DNA molecules and chromosomes
in the figure below.
G1
G2
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10. The answer is "d". Most of your epithelial cells are working cells.
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11. The answer is "d". The reason for the 92 : 46 answer is: during
the G2 stage the DNA has doubled but remains attached; therefore the chromosome
number remains the same but consists of two parts (chromatids) instead
of a single DNA molecule.
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12. The correct answer is "c". G1 stage followed by the S stage where
DNA replicates.
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13. The answer is "a". There are two original DNA molecules in
the G1 stage containing the genes Tt and gg. After DNA replicates during
the synthesis stage, the G2 DNA molecules will have replicated of all genes
- TTtt and gggg. The figure below represents the G2 stage.
G2 pair 
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14. The correct answer is "a".
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15. The answer is "a". There are two chromosomes and each chromosome
consists of two chromatids.
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17. The answer is "a". Only one centromere per chromosome.
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18. The answer is "b". Three homologous pair - one short pair,
one medium pair and one long pair.
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19. The correct answer is "c". Homologous pair have the same gene sequence
and must be of the same length.
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20. The correct answer is "b". Each chromatid contains one kinetochore;
therefore two kinetochores per chromosome.
.
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21. The correct answer is "b".
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22. The correct answer is "b". "1" is long and "3" is short.
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23. The answer is "b". The centromere of the chromosome splits and
sister chromatids are pulled to opposite poles.
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24. The correct answer is "a". Yes sister chromatids are being pulled
to opposite poles.
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25.
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26. The answer is "c". Each cell contains six chromosomes.
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27. The correct answer is "b". This is the final stage of mitosis.
Each cell contains homologous pair of chromosomes, but each chromosomes
is "single".
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27a.
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28. The correct answer is "b". No! Mitosis only produces two
daughter cells.
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29. The correct answer is "a". True
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31. The answer is is "b" false. The daughter cells are genetically
alike and genetically like the mother cell.
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32.
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33. The correct answer is "a".
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34. The correct answer is "c".
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35. The correct answer is "d" - 40.
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36. The correct answer is "b". You may want to go back to miniunit
Beta and compare centrioles with cilia and basal bodies.
c 
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37. The answer is "d". Protein microtubules.
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