Quiz: Cell Division

Choose which phase of mitosis is being described for questions 1 through 3.

1. The paired chromatids are aligning across the center of the cell.
a. prophase
b. metaphase
c. anaphase
2. The paired chromatids are separating and being pulled to opposite ends of the cell.
a. metaphase
b. anaphase
c. prophase
3. Two nuclear membranes are formed around the chromosomes located at opposite ends of the cell.
a. telophase
b. prophase
c. cytokinesis
4. Each chromosome is made of identical halves called __________.
a. centromeres
b. centrioles
c. chromatids
5. During prophase, as the centrioles are migrating to opposite ends of the cell, their spindle fibers attach to the __________ of the chromatids.
a. telomeres
b. centromeres
c. microtubules
6. If you can count 46 centromeres during mitosis, how many chromosomes are present?
a. 23
b. 46
c. 92
7. The paired chromatids are pulled apart during anaphase. The new cells that are formed consist of chromatids, now called chromosomes. During which phase of the cell cycle is DNA replicated?”
a. G phase of interphase
b. S phase of interphase
c. G2 phase of interphase
8. If a cell begins with 50 chromosomes, after the completion of all the mitotic events, each of the new cells will have __________ chromosomes.
a. 25
b. 50
c. 100
9. Which of the following phases of meiosis is being described? The paired chromatids are separating and are being pulled to opposite ends of the cell.
a. anaphase I
b. anaphase II
c. Both A and B are correct
10. The development of sperm cells and egg cells is via __________.
a. mitotic division
b. meiotic division
c. cytokinesis
11. The union of a sperm cell with an egg cell results in a developing child having cells with a complete number of chromosomes. To accomplish this, each sperm cell and each egg cell has to have a(n) __________ set of chromosomes.
a. haploid
b. diploid
c. triploid
12. In humans, a zygote is a __________ cell having __________ chromosomes.
a. diploid; 46
b. diploid; 23
c. haploid; 46
13. At the end of the mitotic events, each new cell will have a __________ number of chromosomes. At the end of the meiotic events, each new cell will have a __________ number of chromosomes.
a. haploid; diploid
b. diploid; haploid
c. monoploid; diploid
14. Which of the following is the correct sequence of events during protein synthesis in eukaryotic cells?
a. transcription, RNA processing, translation
b. RNA processing, transcription, translation
c. translation, RNA processing, transcription
15. In order for the DNA molecule to replicate, it doesn't just immediately produce a duplicate; rather, it comes apart by “splitting” in half in a very precise manner. Which of the following is an enzyme that causes the DNA molecule to “split” or “unzip”?
a. RNA primer
b. helicase
c. DNA polymerase
16. During which set of events are amino acids assembled into protein?
a. translation
b. RNA processing
c. transcription
17. There are many types of RNA that are involved during transcription. Which type of RNA is involved in making the template for sequencing amino acids to eventually make a protein?
a. mRNA (messenger RNA)
b. tRNA (transfer RNA)
c. rRNA (ribosomal RNA)

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