Question 1

What is the genetic makeup of an individual who has inherited Jacobs syndrome?

Accepted Answer

A)   XYY
B)   XXX
C)   XXY
D)   XO
E)   none of theseF) A) and D)
G) A) and C)

Question 2

At what two checkpoints does the cell check for the integrity of the DNA?

Accepted Answer

A)   G1 and G2
B)   G1 and mitotic
C)   G2 and mitotic
D)   cytokinesis and G2
E)   G1 and cytokinesisF) B) and D)
G) A) and E)

Question 3

If an organism does not undergo meiosis,then it cannot undergo sexual reproduction.

Accepted Answer

A) True 
 B)False

Question 4

If the parent cell has 24 chromosomes,and each of the daughter cells has 24 chromosomes,then the cell has undergone

Accepted Answer

A)   mitosis.
B)   meiosis I.
C)   meiosis II.
D)   G1
E)   none of theseF) C) and D)
G) D) and E)

Question 5

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) A) and B)
G) B) and E)

Question 6

If a cell has four 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 D)
G) A) and E)

Question 7

Genetic variation is useful to evolution because environments change.

Accepted Answer

A) True 
 B)False

Question 8

From a karyotype,you could tell all of the following about the cell except whether

Accepted Answer

A)   a fusion of two chromosomes had occurred.
B)   a translocation had occurred between two chromosomes.
C)   one chromosome was missing.
D)   there were three copies of a chromosome present.
E)   a particular gene contained a mutation.F) B) and C)
G) B) and E)

Question 9

There is no mechanism to ensure the exact partitioning of the cytoplasm as there is of the DNA.

Accepted Answer

A) True 
 B)False

Question 10

Which stage comes directly after interphase?

Accepted Answer

A)   mitosis
B)   cytokinesis
C)   G1
D)   S
E)   G2F) A) and B)
G) C) and D)

Question 11

Which aspect of the cytoskeleton is involved in the cleavage furrow?

Accepted Answer

A)   microtubules
B)   intermediate filaments
C)   actin filaments
D)   centrioles
E)   spindle fibersF) None of the above
G) A) and B)

Question 12

If nondisjunction occurs during meiosis I,how many of the final four products will be abnormal?

Accepted Answer

A)   one
B)   two
C)   four
D)   three
E)   noneF) D) and E)
G) A) and B)

Question 13

DNA is found in association with proteins within the cell.What is the term for this DNA-protein complex?

Accepted Answer

A)   chromatin
B)   nucleus
C)   karyotype
D)   centromere
E)   chromatidsF) A) and B)
G) A) and C)

Question 14

If there are four pairs of chromosomes,how many different combinations of chromosomes are possible?

Accepted Answer

A)   2
B)   4
C)   8
D)   16
E)   32F) None of the above
G) A) and E)

Question 15

List the stages of meiosis I and explain the events that occur during each stage.

Accepted Answer

Prophase I: Chromosomes become visiblE P...

Question 16

Which of the following is not a symptom of Down syndrome?

Accepted Answer

A)   short stature
B)   eyelid fold
C)   flat face
D)   stubby fingers
E)   indeterminate genitaliaF) A) and B)
G) B) and D)

Question 17

How many chromosome pairs does a human have?

Accepted Answer

A)   23
B)   25
C)   46
D)   50
E)   92F) A) and C)
G) C) and D)

Question 18

In a karyotype it can be seen that a homologous pair of duplicated chromosomes will contain how many chromatids?

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   sixF) B) and D)
G) A) and E)

Question 19

Two sister chromatids are held together at the

Accepted Answer

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

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 19: Patterns of Chromosome Inheritance

Genetic variation is useful to evolution because environments change.

Correct AnswerverifiedShow Answer

If an organism does not undergo meiosis,then it cannot undergo sexual reproduction.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In a karyotype it can be seen that a homologous pair of duplicated chromosomes will contain how many chromatids?

Correct AnswerverifiedShow Answer

What is the genetic makeup of an individual who has inherited Jacobs syndrome?

Correct AnswerverifiedShow Answer

List the stages of meiosis I and explain the events that occur during each stage.

Correct AnswerverifiedProphase I: Chromosomes become visiblE P...View AnswerShow Answer

Two sister chromatids are held together at the

Correct AnswerverifiedShow Answer

At what two checkpoints does the cell check for the integrity of the DNA?

Correct AnswerverifiedShow Answer

DNA is found in association with proteins within the cell.What is the term for this DNA-protein complex?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not a symptom of Down syndrome?

Correct AnswerverifiedShow Answer

Which stage comes directly after interphase?

Correct AnswerverifiedShow Answer

If nondisjunction occurs during meiosis I,how many of the final four products will be abnormal?

Correct AnswerverifiedShow Answer

There is no mechanism to ensure the exact partitioning of the cytoplasm as there is of the DNA.

Correct AnswerverifiedShow Answer

Which aspect of the cytoskeleton is involved in the cleavage furrow?

Correct AnswerverifiedShow Answer

In what stage of meiosis does synapsis occur?

Correct AnswerverifiedShow Answer

How many chromosome pairs does a human have?

Correct AnswerverifiedShow Answer

If the parent cell has 24 chromosomes,and each of the daughter cells has 24 chromosomes,then the cell has undergone

Correct AnswerverifiedShow Answer

If there are four pairs of chromosomes,how many different combinations of chromosomes are possible?

Correct AnswerverifiedShow Answer

From a karyotype,you could tell all of the following about the cell except whether

Correct AnswerverifiedShow Answer

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Prophase I: Chromosomes become visiblE P...
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