Some cancer drugs such as vinblastine function by preventing formation of the mi

Question

Some cancer drugs such as vinblastine function by preventing formation of the mitotic spindle. The outcome is to _____________________________ of(in) cancerous cells.
A) prevent chromosomes coiling ready for duplication
B) reinstate the stop/start controls in the cell cycle
C) prevent chromosomes from producing chromatids
D) prevent homologous chromosomes lining up on the metaphase plate
2. Most of the cell cycle is spent in ________________ during which time the cell grows and performs normal functions.
A) interphase
B) S phase
C) G2 phase
D) M (mitotic) phase
3. When an organism is described as “haploid” this infers that its cells
A) each contain one set of chromosomes
B) each contain half a chromosome
C) each contain two sets of chromosomes
D) each contain an “Y” chromosome
4. During _________________ of meiosis chromatids of homologous chromosomes exchange genetic material.
A) prophase II
B) anaphase I
C) prophase I
D) anaphase II
5. In a cell containing 20 chromosomes the process of meiosis will result in ___ chromosomes in each cell.
A) 10
B) 20
C) 40
D) 30
6. Some fungi cells complete mitosis however they do not complete cytokinesis. This would result in
A) large nuclei containing many chromatids
B) large cells containing lots of nuclei
C) many cells each containing one nucleus
D) daughter cells identical to the original cell
7. Which of the following statements best describes a karyotype? A picture showing
A) most pairs of homologous chromosomes including sex chromosomes taken from a skin cell
B) pairs of homologous chromosomes taken from a sperm cell
C) all pairs of homologous chromosomes taken from a skin cell
D) pairs of homologous chromosomes taken from an egg cell
8. Which one of the following occurs during mitosis?
A) Chromosomes are duplicated
B) The cell grows
C) Organelles such as mitochondria are duplicated
D) Chromatids separate
9. The function of meiosis is to generate cells
A) that are identical to the original cell
B) to be used for asexual reproduction
C) to be used in sexual reproduction
D) to be used for tissue repair
10. The general body cells of a Koala bear contain 16 chromosomes. Completion of one cell cycle will result in ______ cell(s) (each) with _____ chromosomes.
A) one; 16
B) two; 32
C) two; 32
D) two; 16

Explanation / Answer

Here are some hints and definitions of some terms that may be helpful. Also, the Wikipedia pages for Meiosis and Mitosis Have very detailed breakdowns for each phase that may help you. Good luck! 1) The Mitotic spindle functions to pull apart the duplicated chromosomes after they have lined up on the metaphase plate. If they are not present the Chromosomes will not be separated and the rest of the cell's mitotic cyle cannot continue. 2) Hint: The S and G2 Phases are a part of Interphase 3) Haploid is the oposite of Diploid, Diploid cells have Two sets of chromosomes. 4) Here's how to narrow this one down... It would have to be in the begining of the cell cyle because any point after the cell has cleaved the chromosomes are sparated and would not be able to exchange informantion (The cell cleaves at anaphase). So here is the order of Meiosis incase you dont have it... Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II, and Telophase II 5) Meiosis is the same as Mitosis except for the fact that Meiosis has two stages and does not create identical cells. 6) Cytokinesis the process in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. 7) Hint: a karyotype shows all 46 Chromosomes in a cell. 8) Mitosis is all about the genetic information a cell carries. The other organelles are duplicated durring interphase. 9) Meiosis is used to create cells that are geneticaly diverse, not identical. 10) General body cells go through mitosis that will result in 2 identical cells.

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