Question 1

What is the structure that holds the chromatids together?

Accepted Answer

A)   centromere
B)   chromatin
C)   chromosomes
D)   karyotype
E)   none of theseF) All of the above
G) A) and C)

Question 2

In a karyotype of duplicated chromosomes, each chromosome contains two sister chromatids.

Accepted Answer

A) True 
 B)False

Question 3

What structure is not divided during cytokinesis?

Accepted Answer

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

Question 4

In a karyotype, the chromosomes are arranged in order from

Accepted Answer

A)   largest to smallest, with the sex chromosomes at the end.
B)   smallest to largest, with the sex chromosomes at the end.
C)   largest to smallest, including the sex chromosomes.
D)   smallest to largest, including the sex chromosomes.
E)   sex chromosomes first and then smallest to the largest.F) A) and E)
G) A) and D)

Question 5

Following mitosis, the daughter cells are identical to the parent cell.

Accepted Answer

A) True 
 B)False

Question 6

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) B) and D)
G) A) and B)

Question 7

When does a chromosome go from one chromatid to two sister chromatids?

Accepted Answer

A)   during the G1 phase of interphase
B)   during the S phase of interphase
C)   during the G2 phase of interphase
D)   during mitosis
E)   during cytokinesisF) D) and E)
G) A) and B)

Question 8

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) None of the above
G) A) and B)

Question 9

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 10

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) D) and E)
G) All of the above

Question 11

In both spermatogenesis and oogenesis, one sperm/egg forms from one primary spermatocyte/oocyte.

Accepted Answer

A) True 
 B)False  False

Question 12

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) B) and C)

Question 13

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

Accepted Answer

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

Question 14

At what stage of mitosis do sister chromatids become full-fledged chromosomes?

Accepted Answer

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

Question 15

Sexual reproduction introduces more genetic variation than does asexual reproduction.

Accepted Answer

A) True 
 B)False

Question 16

If the secondary oocyte is not fertilized, it does not complete meiosis II.

Accepted Answer

A) True 
 B)False

Question 17

In humans, how many of the chromosomes are autosomes?

Accepted Answer

A)   22 pairs
B)   22
C)   1 pair
D)   46
E)   23 pairsF) B) and E)
G) A) and D) A

Question 18

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 E)
G) All of the above

Question 19

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

Accepted Answer

Prophase I: Chromosomes become visible. Pairing of homologous chromosomes occur. Metaphase I: Duplicated homologous chromosomes line up at the equator of the cell.
Anaphase I: Homologous chromosomes are separated and move towards opposite sides of the cell. Cytokinesis begins.
Telophase I: Two haploid daughter cells are produced as the cytokinesis is completed.

Question 20

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) A) and E)

Exam 19: Patterns of Chromosome Inheritance

What is the structure that holds the chromatids together?

Correct Answer
verified

In a karyotype of duplicated chromosomes, each chromosome contains two sister chromatids.

Correct Answer
verified

What structure is not divided during cytokinesis?

Correct Answer
verified

In a karyotype, the chromosomes are arranged in order from

Correct Answer
verified

Following mitosis, the daughter cells are identical to the parent cell.

Correct Answer
verified

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

Correct Answer
verified

When does a chromosome go from one chromatid to two sister chromatids?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

In both spermatogenesis and oogenesis, one sperm/egg forms from one primary spermatocyte/oocyte.

Correct Answer
verified
False

How are Jacobs and Klinefelter syndromes alike?

Correct Answer
verified

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

Correct Answer
verified

At what stage of mitosis do sister chromatids become full-fledged chromosomes?

Correct Answer
verified

Sexual reproduction introduces more genetic variation than does asexual reproduction.

Correct Answer
verified

If the secondary oocyte is not fertilized, it does not complete meiosis II.

Correct Answer
verified

In humans, how many of the chromosomes are autosomes?

Correct Answer
verified
A

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

Correct Answer
verified

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

In what stage of meiosis does synapsis occur?

Correct Answer
verified

Exam 19: Patterns of Chromosome Inheritance

What is the structure that holds the chromatids together?

Correct AnswerverifiedShow Answer

In a karyotype of duplicated chromosomes, each chromosome contains two sister chromatids.

Correct AnswerverifiedShow Answer

What structure is not divided during cytokinesis?

Correct AnswerverifiedShow Answer

In a karyotype, the chromosomes are arranged in order from

Correct AnswerverifiedShow Answer

Following mitosis, the daughter cells are identical to the parent cell.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When does a chromosome go from one chromatid to two sister chromatids?

Correct AnswerverifiedShow Answer

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

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

Correct AnswerverifiedShow Answer

In both spermatogenesis and oogenesis, one sperm/egg forms from one primary spermatocyte/oocyte.

Correct AnswerverifiedFalse

How are Jacobs and Klinefelter syndromes alike?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

At what stage of mitosis do sister chromatids become full-fledged chromosomes?

Correct AnswerverifiedShow Answer

Sexual reproduction introduces more genetic variation than does asexual reproduction.

Correct AnswerverifiedShow Answer

If the secondary oocyte is not fertilized, it does not complete meiosis II.

Correct AnswerverifiedShow Answer

In humans, how many of the chromosomes are autosomes?

Correct AnswerverifiedA

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.

In what stage of meiosis does synapsis occur?

Correct AnswerverifiedShow Answer

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False

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A

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