Question 1

In what way is spermatogenesis similar to oogenesis?

Accepted Answer

A)  Both occur continuously from puberty on. 
B)  Both result in 4 daughter cells. 
C)  Both result in cells with half the chromosome number. 
D)  Both are arrested in prophase I. 
E)  Both result in 1 or 2 polar bodies. 
A)  Both occur continuously from puberty on. 
B)  Both result in 4 daughter cells. 
C)  Both result in cells with half the chromosome number. 
D)  Both are arrested in prophase I. 
E)  Both result in 1 or 2 polar bodies. C

Question 2

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 these 
A)  mitosis. 
B)  meiosis I. 
C)  meiosis II. 
D)  G1 
E)  none of these A

Question 3

Which of the following is part of the mitotic spindle?

Accepted Answer

A)  sister chromatid 
B)  nucleolus 
C)  nuclear membrane 
D)  aster 
E)  centromere 
A)  sister chromatid 
B)  nucleolus 
C)  nuclear membrane 
D)  aster 
E)  centromere D

Question 4

Cytokinesis is the division of the ___________.

Accepted Answer

A)  cytoplasm 
B)  nucleus 
C)  chromosomes 
D)  chromatin 
E)  zygote 
A)  cytoplasm 
B)  nucleus 
C)  chromosomes 
D)  chromatin 
E)  zygote

Question 5

If nondisjunction occurs during meiosis I, how many of the final 4 products will be abnormal?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  3 
E)  none 
A)  1 
B)  2 
C)  4 
D)  3 
E)  none

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

How many cells are produced as the result of meiosis and mitosis?

Accepted Answer

A)  4, 2 
B)  2, 2 
C)  2, 4 
D)  4, 4 
E)  it varies each time the cells go through meiosis and mitosis 
A)  4, 2 
B)  2, 2 
C)  2, 4 
D)  4, 4 
E)  it varies each time the cells go through meiosis and mitosis

Question 9

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. 
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.

Question 10

In a karyotype, each chromosome contains two sister chromatids.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  six 
A)  one 
B)  two 
C)  three 
D)  four 
E)  six

Question 12

In what stage of meiosis does synapsis occur?

Accepted Answer

A)  prophase I 
B)  prophase II 
C)  metaphase I 
D)  metaphase II 
E)  anaphase I 
A)  prophase I 
B)  prophase II 
C)  metaphase I 
D)  metaphase II 
E)  anaphase I

Question 13

What structure is not divided during cytokinesis?

Accepted Answer

A)  chromosomes 
B)  cell membrane 
C)  cell wall 
D)  cytoplasm 
E)  endoplasmic reticulum 
A)  chromosomes 
B)  cell membrane 
C)  cell wall 
D)  cytoplasm 
E)  endoplasmic reticulum

Question 14

The amount of time the cell takes for interphase is approximately 1 hour, plus or minus about 5 minutes.

Accepted Answer

A) True 
 B)False

Question 15

What is the structure that holds the chromatids together?

Accepted Answer

A)  centromere 
B)  chromatin 
C)  chromosomes 
D)  karyotype 
E)  none of these 
A)  centromere 
B)  chromatin 
C)  chromosomes 
D)  karyotype 
E)  none of these

Question 16

At which stage of mitosis do the chromsomes look like the letter "V"?

Accepted Answer

A)  prophase 
B)  metaphase 
C)  anaphase 
D)  telophase 
E)  cytokinesis 
A)  prophase 
B)  metaphase 
C)  anaphase 
D)  telophase 
E)  cytokinesis

Question 17

Which cell could you not use to produce a karyotype?

Accepted Answer

A)  white blood cells 
B)  red blood cells 
C)  epithelial cells 
D)  smooth muscle cells 
E)  skeletal muscle cells 
A)  white blood cells 
B)  red blood cells 
C)  epithelial cells 
D)  smooth muscle cells 
E)  skeletal muscle cells

Question 18

Which of the following is associated with mental retardation in Down syndrome?

Accepted Answer

A)  elevated levels of purines in the blood 
B)  increased tendency toward leukemia 
C)  increased tendency toward cataracts 
D)  accelerated rate of aging 
E)  thickening of the muscles of the tongue 
A)  elevated levels of purines in the blood 
B)  increased tendency toward leukemia 
C)  increased tendency toward cataracts 
D)  accelerated rate of aging 
E)  thickening of the muscles of the tongue

Question 19

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 these 
A)  XYY 
B)  XXX 
C)  XXY 
D)  XO 
E)  none of these

Question 20

List the stages of interphase and the events that occur during each of these stages.

Accepted Answer

G1 stage: The cell grows and returns to

Exam 18: Patterns of Chromosome Inheritance

In what way is spermatogenesis similar to oogenesis?

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

Which of the following is part of the mitotic spindle?

Cytokinesis is the division of the ___________.

If nondisjunction occurs during meiosis I, how many of the final 4 products will be abnormal?

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

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

How many cells are produced as the result of meiosis and mitosis?

In a karyotype, the chromosomes are arranged in order from

In a karyotype, each chromosome contains two sister chromatids.

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

In what stage of meiosis does synapsis occur?

What structure is not divided during cytokinesis?

The amount of time the cell takes for interphase is approximately 1 hour, plus or minus about 5 minutes.

What is the structure that holds the chromatids together?

At which stage of mitosis do the chromsomes look like the letter "V"?

Which cell could you not use to produce a karyotype?

Which of the following is associated with mental retardation in Down syndrome?

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

List the stages of interphase and the events that occur during each of these stages.

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