Question 1

All the products of oogenesis are equal in size and content.

Accepted Answer

A) True 
 B)False

Question 2

Two sister chromatids are held together at the

Accepted Answer

A)  centromere.
B)  spindle.
C)  aster.
D)  telomere.
E)  autosomE.F) B) and C)
G) A) and E)

Question 3

How long does it take to proceed from prophase I to metaphase I in oogenesis?

Accepted Answer

A)  One follows directly after the other.
B)  There is usually a pause of about 1 hour.
C)  It varies,but on the order of years.
D)  There is a pause for a day.
E)  There is a pause for about a month.F) A) and B)
G) B) and E)

Question 4

Trisomy of which pair of chromosomes has the greatest chance of survival?

Accepted Answer

A)  XX
B)  pair 13
C)  pair 8
D)  pair 3
E)  pair 15F) A) and B)
G) A) and C)

Question 5

What structure is not divided during cytokinesis?

Accepted Answer

A)  chromosomes
B)  cell membrane
C)  cell wall
D)  cytoplasm
E)  endoplasmic reticulumF) A) and E)
G) A) and D)

Question 6

In which stage of meiosis do homologous chromosomes separate from each other?

Accepted Answer

A)  metaphase I
B)  metaphase II
C)  anaphase I
D)  anaphase II
E)  interkinesisF) B) and D)
G) A) and E)

Question 7

External signals such as hormones and growth factors can stimulate a cell to go through the cell cycle.

Accepted Answer

A) True 
 B)False

Question 8

Independent alignment creates genetic variation.This is associated with which stage of meiosis?

Accepted Answer

A)  prophase I
B)  metaphase I
C)  prophase II
D)  metaphase II
E)  anaphase IIF) D) and E)
G) B) and E)

Question 9

When do the centromeres divide in meiosis?

Accepted Answer

A)  prophase I
B)  prophase II
C)  anaphase I
D)  anaphase II
E)  telophase IF) C) and D)
G) A) and E)

Question 10

How are G1 and G2 different?

Accepted Answer

A)  The cell copies its DNA during G1 but not G2.
B)  The cell does not grow during G1 but doubles its organelles in G2.
C)  In G1,the cell prepares to synthesize its DNA and in G2,it synthesizes the proteins needed for cell division.
D)  The cell spends much more time in G2 than in G1.
E)  Mitosis occurs during G1 but not during G2.F) B) and D)
G) B) and C)

Question 11

How are Jacobs and Klinefelter syndromes alike?

Accepted Answer

A)  Both have only two X chromosomes.
B)  Both have only two Y chromosomes.
C)  Both have three sex chromosomes.
D)  Both have one sex chromosome.
E)  Both have only 45 chromosomes.F) A) and B)
G) A) and C)

Question 12

In which two phases of mitosis does the nuclear membrane appear or disappear?

Accepted Answer

A)  prophase and metaphase
B)  metaphase and anaphase
C)  prophase and anaphase
D)  anaphase and telophase
E)  prophase and telophaseF) B) and E)
G) C) and D)

Question 13

Which phase of meiosis matches those of mitosis in regards to the events occurring in the cell?

Accepted Answer

A)  anaphase II and anaphase
B)  anaphase I and prophase
C)  metaphase I and prophase
D)  telophase II and telophase
E)  none of the phases of meiosis will match up with mitosisF) A) and B)
G) C) and D)

Question 14

Which type of change in chromosome structure characterizes cri du chat syndrome?

Accepted Answer

A)  deletion
B)  duplication
C)  translocation
D)  inversion
E)  trisomyF) A) and B)
G) C) and D)

Question 15

What happens at the G2 checkpoint?

Accepted Answer

A)  The cell makes a commitment to divide.
B)  The cell receives external signals to divide.
C)  The cell checks that the DNA has replicated.
D)  The cell makes sure the chromosomes are lined up correctly.
E)  The cell enters G0.F) C) and D)
G) A) and E)

Question 16

Cytokinesis is the division of the ___________.

Accepted Answer

A)  cytoplasm
B)  nucleus
C)  chromosomes
D)  chromatin
E)  zygoteF) C) and E)
G) A) and E)

Question 17

In what stage of meiosis does synapsis occur?

Accepted Answer

A)  prophase I
B)  prophase II
C)  metaphase I
D)  metaphase II
E)  anaphase IF) B) and D)
G) C) and D)

Question 18

In a translocation,all of the DNA is present,and there is only one copy of each piece.

Accepted Answer

A) True 
 B)False

Question 19

If a cell has 4 pairs of chromosomes,after mitosis each daughter cell will have how many chromosomes?

Accepted Answer

A)  2
B)  4
C)  8
D)  16
E)  32F) A) and B)
G) B) and D)

Question 20

How do proto-oncogenes affect the cell cycle?

Accepted Answer

A)  stimulate it
B)  inhibit it
C)  they do not affect the cell cycle
D)  they cause it to temporarily pause and then rapidly accelerate
E)  they rapidly accelerate it and then cause it to pauseF) A) and B)
G) A) and C)

Exam 19: Patterns of Chromosome Inheritance

How long does it take to proceed from prophase I to metaphase I in oogenesis?

Correct AnswerverifiedShow Answer

External signals such as hormones and growth factors can stimulate a cell to go through the cell cycle.

Correct AnswerverifiedShow Answer

All the products of oogenesis are equal in size and content.

Correct AnswerverifiedShow Answer

How are G1 and G2 different?

Correct AnswerverifiedShow Answer

Which type of change in chromosome structure characterizes cri du chat syndrome?

Correct AnswerverifiedShow Answer

What structure is not divided during cytokinesis?

Correct AnswerverifiedShow Answer

Which phase of meiosis matches those of mitosis in regards to the events occurring in the cell?

Correct AnswerverifiedShow Answer

In which two phases of mitosis does the nuclear membrane appear or disappear?

Correct AnswerverifiedShow Answer

How are Jacobs and Klinefelter syndromes alike?

Correct AnswerverifiedShow Answer

Two sister chromatids are held together at the

Correct AnswerverifiedShow Answer

When do the centromeres divide in meiosis?

Correct AnswerverifiedShow Answer

In what stage of meiosis does synapsis occur?

Correct AnswerverifiedShow Answer

How do proto-oncogenes affect the cell cycle?

Correct AnswerverifiedShow Answer

Cytokinesis is the division of the ___________.

Correct AnswerverifiedShow Answer

If a cell has 4 pairs of chromosomes,after mitosis each daughter cell will have how many chromosomes?

Correct AnswerverifiedShow Answer

In a translocation,all of the DNA is present,and there is only one copy of each piece.

Correct AnswerverifiedShow Answer

What happens at the G2 checkpoint?

Correct AnswerverifiedShow Answer

In which stage of meiosis do homologous chromosomes separate from each other?

Correct AnswerverifiedShow Answer

Independent alignment creates genetic variation.This is associated with which stage of meiosis?

Correct AnswerverifiedShow Answer

Trisomy of which pair of chromosomes has the greatest chance of survival?

Correct AnswerverifiedShow Answer

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How are G₁ and G₂ different?

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What happens at the G₂ checkpoint?

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