Rutgers Biology 115 Exam 2 Review
(Fall Semester) Questions Solved
Correctly.
Identify chromosome number. In the following image, cell A has _______ chromosomes and cell
B has ________ chromosomes
a. 6, 6
b. 6, 3
c. 12, 6
d. 3, 6 - Answer a. 6, 6
White-tailed deer have 70 chromosomes in each of their kidney cells. During the cell cycle of a
deer kidney cell, there are _______ chromosomes in the cell during interphase and ______
chromosomes in the cell during the mitotic phase.
a. 35; 70
b. 70; 35
c. 35; 35
d. 70; 70 - Answer d. 70; 70
A cell that is in the M phase of the cell cycle is exposed to a toxin that prevents the separation
of identical DNA molecules. Hypothesize which of the following will be the most immediate
outcome.
a. The sister chromatids will not move to opposite poles
b. The microtubules will not depolymerize.
c. The nuclear envelope will not break down.
d. The chromosomes will not line up. - Answer a. The sister chromatids will not move to
opposite poles
(Image of chromosomes Q#4)
In the following image, Y is a _____ and Z is a _____.
(Y is the image on the far most right, Z is the entire image in the middle)
a. sister chromatid, centromere
, b. kinetochore handles, chromosomes
c. chromosome, centromere
d. chromosomes, sister chromatid - Answer d. chromosomes, sister chromatid
A cell in G1 is diploid and has 34 chromosomes. What is the ploidy of the daughter cells after
this cell goes through mitosis?
a. 2n=34
b. n=34
c. 2n=17
d. 2n=68 - Answer a. 2n=34
Correctly SEQ the following events in the cell cycle starting with the start of S phase.
I. DNA is replicated
II. Nuclear envelope reforms
III.Chromosomes condense
IV. Mitotic spindle fibers attach to the kinetochores
V. Sister chromatids move to opposite sides of the cell - Answer I, III, IV, V, II
SEQ mitosis and meiosis. During which stage[s] of mitosis and meiosis do sister chromatids
separate?
I. Anaphase
II. Anaphase I
III. Anaphase II - Answer I and III
A scientist is studying the cell cycle. She lyses several cells and runs an assay for cell
components. Her sample shows high levels of helicase and SSBP (single-stranded binding
proteins.) In which stage of the cell cycle are her sample cells currently?
a. Metaphase
b. Anaphase
c. Interphase
d. Prophase - Answer c. Interphase
Compare and contrast life cycles. Which of the following occur in the lifecycle of BOTH a fungus
and an animal?
I. fertilization
II. mitosis
(Fall Semester) Questions Solved
Correctly.
Identify chromosome number. In the following image, cell A has _______ chromosomes and cell
B has ________ chromosomes
a. 6, 6
b. 6, 3
c. 12, 6
d. 3, 6 - Answer a. 6, 6
White-tailed deer have 70 chromosomes in each of their kidney cells. During the cell cycle of a
deer kidney cell, there are _______ chromosomes in the cell during interphase and ______
chromosomes in the cell during the mitotic phase.
a. 35; 70
b. 70; 35
c. 35; 35
d. 70; 70 - Answer d. 70; 70
A cell that is in the M phase of the cell cycle is exposed to a toxin that prevents the separation
of identical DNA molecules. Hypothesize which of the following will be the most immediate
outcome.
a. The sister chromatids will not move to opposite poles
b. The microtubules will not depolymerize.
c. The nuclear envelope will not break down.
d. The chromosomes will not line up. - Answer a. The sister chromatids will not move to
opposite poles
(Image of chromosomes Q#4)
In the following image, Y is a _____ and Z is a _____.
(Y is the image on the far most right, Z is the entire image in the middle)
a. sister chromatid, centromere
, b. kinetochore handles, chromosomes
c. chromosome, centromere
d. chromosomes, sister chromatid - Answer d. chromosomes, sister chromatid
A cell in G1 is diploid and has 34 chromosomes. What is the ploidy of the daughter cells after
this cell goes through mitosis?
a. 2n=34
b. n=34
c. 2n=17
d. 2n=68 - Answer a. 2n=34
Correctly SEQ the following events in the cell cycle starting with the start of S phase.
I. DNA is replicated
II. Nuclear envelope reforms
III.Chromosomes condense
IV. Mitotic spindle fibers attach to the kinetochores
V. Sister chromatids move to opposite sides of the cell - Answer I, III, IV, V, II
SEQ mitosis and meiosis. During which stage[s] of mitosis and meiosis do sister chromatids
separate?
I. Anaphase
II. Anaphase I
III. Anaphase II - Answer I and III
A scientist is studying the cell cycle. She lyses several cells and runs an assay for cell
components. Her sample shows high levels of helicase and SSBP (single-stranded binding
proteins.) In which stage of the cell cycle are her sample cells currently?
a. Metaphase
b. Anaphase
c. Interphase
d. Prophase - Answer c. Interphase
Compare and contrast life cycles. Which of the following occur in the lifecycle of BOTH a fungus
and an animal?
I. fertilization
II. mitosis
