BIOD 210 Exam 3 | Questions and Answers Latest
Updated (Graded A+)- Portage Learning
1. True or False: Chromosomes are uncondensed and diffuse for only a
short time during the cell cycle.
false
2. True or False: Chromosomes are in a uncondensed, diffuse form
through most of the cell cycle.
True
3. True or False: Chromosomes are in a condensed form through most of
the cell cycle.
False
4. Match the following terms to the correct description: Nuclear
membrane, cytosol, plasma membrane, endoplasmic reticulum,
nucleus.
- Protects the cell from the outside environment – plasma membrane
- Dissolves during mitosis – nuclear membrane
- Contains all the DNA within the cell - nucleus
- Studded with ribosomes on a large surface area – endoplasmic
reticulum
- Jelly-like substance within cells - cytosol
5. During prophase, which membrane breaks down?
The nuclear membrane
6. At which cell cycle phase does the nuclear membrane break down?
Prophase
7. The genetic flow of material between organisms is NOT dependent on
which of these criteria?
a) independent assortment of the genes
b) Replication of material
c) Storage of information
d) Variation of DNA through mutation
8. The genetic flow of material between organisms is NOT dependent on
which of the following criteria
a) Replication of material
b) Storage of information
, c) Variation of DNA through mutation
d) All of these criteria are needed for the flow of genetic
material.
9. Which of the following is correct?
a) sister chromatids are held together by cohesin
b) Centrioles are responsible for the formation of spindle fibers.
c) In metaphase, centromeres line up on an equatorial plate in the
center of the cell
d) All are correct
10. The longest of the stages during mitosis is:
Prophase
11. DNA is condensed within the nucleus (cellular compartment) by
coiling around (1) proteins. Modification of these
(2) charged proteins alters them to become either neutral or
negatively charged. Thus, the interaction with (3) charged
DNA is interrupted, and the interactions loosen.
histone; positively; negatively
12. DNA is condensed within the (1) (cellular compartment)
by coiling around (2) proteins. Modification of these positively
charged proteins alters them to become either neutral or negatively
charged. Thus, the interaction with (3) charged DNA is
interrupted, and the interactions loosen.
nucleus; histone; negatively
13. Which of the following is true about anaphase?
a) chromatids undergo disjunction to travel to opposite poles
b) It marks the shortest phase of the cell cycle
14. Interphase marks the period of the cell cycle just before active
cell division. Starting with interphase, place the phases of the cell of
the cell cycle in order 1-5: Telophase, Metaphase, Prophase, S-phase,
Anaphase
1. S-phase
2. Prophase
3. Metaphase
4. Anaphase
5. Telophase
Updated (Graded A+)- Portage Learning
1. True or False: Chromosomes are uncondensed and diffuse for only a
short time during the cell cycle.
false
2. True or False: Chromosomes are in a uncondensed, diffuse form
through most of the cell cycle.
True
3. True or False: Chromosomes are in a condensed form through most of
the cell cycle.
False
4. Match the following terms to the correct description: Nuclear
membrane, cytosol, plasma membrane, endoplasmic reticulum,
nucleus.
- Protects the cell from the outside environment – plasma membrane
- Dissolves during mitosis – nuclear membrane
- Contains all the DNA within the cell - nucleus
- Studded with ribosomes on a large surface area – endoplasmic
reticulum
- Jelly-like substance within cells - cytosol
5. During prophase, which membrane breaks down?
The nuclear membrane
6. At which cell cycle phase does the nuclear membrane break down?
Prophase
7. The genetic flow of material between organisms is NOT dependent on
which of these criteria?
a) independent assortment of the genes
b) Replication of material
c) Storage of information
d) Variation of DNA through mutation
8. The genetic flow of material between organisms is NOT dependent on
which of the following criteria
a) Replication of material
b) Storage of information
, c) Variation of DNA through mutation
d) All of these criteria are needed for the flow of genetic
material.
9. Which of the following is correct?
a) sister chromatids are held together by cohesin
b) Centrioles are responsible for the formation of spindle fibers.
c) In metaphase, centromeres line up on an equatorial plate in the
center of the cell
d) All are correct
10. The longest of the stages during mitosis is:
Prophase
11. DNA is condensed within the nucleus (cellular compartment) by
coiling around (1) proteins. Modification of these
(2) charged proteins alters them to become either neutral or
negatively charged. Thus, the interaction with (3) charged
DNA is interrupted, and the interactions loosen.
histone; positively; negatively
12. DNA is condensed within the (1) (cellular compartment)
by coiling around (2) proteins. Modification of these positively
charged proteins alters them to become either neutral or negatively
charged. Thus, the interaction with (3) charged DNA is
interrupted, and the interactions loosen.
nucleus; histone; negatively
13. Which of the following is true about anaphase?
a) chromatids undergo disjunction to travel to opposite poles
b) It marks the shortest phase of the cell cycle
14. Interphase marks the period of the cell cycle just before active
cell division. Starting with interphase, place the phases of the cell of
the cell cycle in order 1-5: Telophase, Metaphase, Prophase, S-phase,
Anaphase
1. S-phase
2. Prophase
3. Metaphase
4. Anaphase
5. Telophase
