Question 1

If there are 4 pairs of chromosomes,how many different combinations of chromosomes are possible?

Accepted Answer

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

Question 2

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 3

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

Accepted Answer

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

Question 4

When is chorionic villi sampling generally performed?

Accepted Answer

A)   1-2 weeks of pregnancy
B)   3-4 weeks of pregnancy
C)   5-8 weeks of pregnancy
D)   8-12 weeks of pregnancy
E)   12-16 weeks of pregnancyF) All of the above
G) A) and E)

Question 5

If an organism has 4 pairs of chromosomes,after meiosis it will contain how many chromosomes?

Accepted Answer

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

Question 6

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

Accepted Answer

A)   prophase
B)   metaphase
C)   anaphase
D)   telophaseE) None of the above
F) A) and B)

Question 7

How are mitosis and cytokinesis alike?

Accepted Answer

A)   Both involve the nucleus.
B)   Both involve mitochondria.
C)   Both involve division.
D)   Both involve apoptosis.
E)   Both involve DNA synthesis.F) B) and C)
G) All of the above

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

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) All of the above
F) B) and C)

Question 10

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.F) C) and E)
G) A) and D)

Question 11

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) All of the above
E) A) and B)

Question 12

How do proto-oncogenes affect the cell cycle?

Accepted Answer

A)   stimulate it
B)   inhibit itC) A) and B)
D) undefined

Question 13

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 D)

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

Jessica and Nathan just found out they are pregnant.The doctor estimates it has been 6 weeks since her last menstruation.Can they have an amniocentesis done now?

Accepted Answer

NO
Explanation: No. ...

Question 16

How many chromosome pairs does a human have?

Accepted Answer

A)   23
B)   25
C)   46
D)   50
E)   92F) A) and B)
G) None of the above

Question 17

What are the two parts of the cell cycle?

Accepted Answer

A)   apoptosis and interphase
B)   mitosis and cytokinesis
C)   nucleus and cytoplasm
D)   mitosis and meiosis
E)   interphase and cell divisionF) C) and D)
G) D) and E)

Question 18

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 E)
G) None of the above

Question 19

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 agingE) C) and D)
F) B) and C)

Question 20

At what 2 checkpoints does the cell check for the integrity of the DNA?

Accepted Answer

A)   G1 and G2
B)   G1 and mitotic
C)   G2 and mitoticD) All of the above
E) B) and C)

Exam 18: Patterns of Chromosome Inheritance

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

Correct AnswerverifiedShow Answer

If there are 4 pairs of chromosomes,how many different combinations of chromosomes are possible?

Correct AnswerverifiedShow Answer

When is chorionic villi sampling generally performed?

Correct AnswerverifiedShow Answer

In a karyotype the chromosomes are arranged in order from

Correct AnswerverifiedShow Answer

How are mitosis and cytokinesis alike?

Correct AnswerverifiedShow Answer

Jessica and Nathan just found out they are pregnant.The doctor estimates it has been 6 weeks since her last menstruation.Can they have an amniocentesis done now?

Correct AnswerverifiedNOExplanation: No. ...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What are the two parts of the cell cycle?

Correct AnswerverifiedShow Answer

In what way is spermatogenesis similar to oogenesis?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

At what 2 checkpoints does the cell check for the integrity of the DNA?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

If an organism has 4 pairs of chromosomes,after meiosis it will contain how many chromosomes?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

How do proto-oncogenes affect the cell cycle?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

How many chromosome pairs does a human have?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
NO
Explanation: No. ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified