Question 1

Human cells have

Accepted Answer

A)  23 pairs of chromosomes.
B)  23 chromosomes.
C)  46 pairs of chromosomes.
D)  2 pairs of sex chromosomes.
E)  one pair of autosomes.F) A) and E)
G) A) and C)

Question 2

A female missing an X chromosome (XO)has Turner syndrome.

Accepted Answer

A) True 
 B)False

Question 3

In meiosis,paired homologs align down the center of the cell during

Accepted Answer

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

Question 4

A gamete having more than one complete set of chromosomes

Accepted Answer

A)  cannot be produced by meiosis.
B)  cannot participate in fertilization.
C)  is polyploid.
D)  will undergo mitosis.
E)  is not yet through meiosis.F) C) and E)
G) All of the above

Question 5

The X chromosome is

Accepted Answer

A)  larger than the Y chromosome.
B)  smaller than the Y chromosome.
C)  the same size as the Y chromosome.
D)  genetically identical to the Y chromosome.
E)  larger and genetically identical to the Y chromosomE.F) C) and E)
G) B) and D)

Question 6

Alternate forms of the same gene

Accepted Answer

A)  do not exist.
B)  are alleles.
C)  are homologs.
D)  are sister chromatids.
E)  do not occur in the same individual.F) B) and E)
G) C) and D)

Question 7

If a haploid cell goes through mitosis it will generate

Accepted Answer

A)  two haploid cells.
B)  two diploid cells.
C)  four haploid cells.
D)  four diploid cells.
E)  This is not possiblE.F) B) and E)
G) A) and D)

Question 8

Sexual reproduction is important to the survival of a species in a changing environment because

Accepted Answer

A)  sexual reproduction requires less overall energy expenditure than asexual reproduction.
B)  sexual reproduction produces genetically different individuals.
C)  sexual reproduction requires only one individual.
D)  sexual reproduction produces genetically-identical individuals.
E)  All answers are correct.F) A) and D)
G) D) and E)

Question 9

Meiotic cell division replicates a cell's DNA ____________ and then divides ______________.

Accepted Answer

A)  twice,once
B)  once,twice
C)  twice,twice
D)  once,once
E)  None of the answers are correct.F) None of the above
G) A) and B)

Question 10

What two processes results in genetically-identical products?

Accepted Answer

A)  mitosis and meiosis
B)  meiosis and asexual reproduction
C)  meiosis and sexual reproduction
D)  mitosis and sexual reproduction
E)  mitosis and asexual reproductionF) A) and E)
G) All of the above

Question 11

If a diploid cell goes through mitosis it will generate

Accepted Answer

A)  four haploid cells.
B)  two diploid cells.
C)  two haploid cells.
D)  four diploid cells.
E)  This is not possiblE.F) D) and E)
G) A) and B)

Question 12

In meiosis,the separated sister chromatids move to opposite poles of the cell during

Accepted Answer

A)  metaphase I.
B)  metaphase II.
C)  anaphase I.
D)  telophase I.
E)  anaphase II.F) C) and E)
G) A) and E)

Question 13

The process by which homologous chromosomes exchange genetic material

Accepted Answer

A)  is crossing over.
B)  is random fertilization.
C)  occurs only in bacteria.
D)  occurs only in animals.
E)  is independent assortment.F) B) and D)
G) B) and C)

Question 14

The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is

Accepted Answer

A)  meiosis.
B)  mutation.
C)  mitosis.
D)  conjugation.
E)  sexual reproduction.F) A) and E)
G) C) and D)

Question 15

When chromosomes fail to separate at either the first or second meiotic division,this

Accepted Answer

A)  is known as crossing over.
B)  results in a sperm or egg cell with an abnormal number of chromosomes.
C)  is known as translocation.
D)  results in a failure to produce gametes.
E)  results in arrest during meiosis.F) B) and C)
G) C) and D)

Question 16

Nondisjunction may cause

Accepted Answer

A)  trisomy 21.
B)  Turner syndrome.
C)  Jacobs syndrome.
D)  All answers are correct.
E)  Klinefelter syndromE.F) D) and E)
G) A) and B)

Question 17

Genetic information is passed from one generation to the next through

Accepted Answer

A)  DNA.
B)  asexual reproduction.
C)  sexual reproduction.
D)  gametes.
E)  All answers are correct.F) A) and D)
G) A) and B)

Question 18

A zygote is

Accepted Answer

A)  a haploid cell.
B)  a gamete.
C)  a direct product of meiosis.
D)  All answers are correct.
E)  a diploid cell.F) A) and E)
G) A) and C)

Question 19

People who have a single X chromosome are female,while those with XXY sex chromosomes are males.In order to be a female,a human

Accepted Answer

A)  must have two X chromosomes.
B)  cannot have a Y chromosome.
C)  must have only one X chromosome.
D)  must have only one Y chromosome.
E)  cannot have an X chromosomE.F) B) and C)
G) B) and D)

Question 20

Sexual reproduction includes

Accepted Answer

A)  mitosis,gamete formation,and fertilization.
B)  mitosis,meiosis,and gamete formation.
C)  meiosis,gamete formation,and fertilization.
D)  mitosis,fertilization,and meiosis.
E)  None of the answers are correct.F) C) and D)
G) None of the above

Exam 9: Sexual Reproduction and Meiosis

In meiosis,paired homologs align down the center of the cell during

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Sexual reproduction includes

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The process by which a bacterium uses a sex pilus to transfer genetic information to another bacterium is

Correct AnswerverifiedShow Answer

If a haploid cell goes through mitosis it will generate

Correct AnswerverifiedShow Answer

What two processes results in genetically-identical products?

Correct AnswerverifiedShow Answer

Meiotic cell division replicates a cell's DNA ____________ and then divides ______________.

Correct AnswerverifiedShow Answer

A female missing an X chromosome (XO)has Turner syndrome.

Correct AnswerverifiedShow Answer

The X chromosome is

Correct AnswerverifiedShow Answer

People who have a single X chromosome are female,while those with XXY sex chromosomes are males.In order to be a female,a human

Correct AnswerverifiedShow Answer

Sexual reproduction is important to the survival of a species in a changing environment because

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Human cells have

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The process by which homologous chromosomes exchange genetic material

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In meiosis,the separated sister chromatids move to opposite poles of the cell during

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A zygote is

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If a diploid cell goes through mitosis it will generate

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A gamete having more than one complete set of chromosomes

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Alternate forms of the same gene

Correct AnswerverifiedShow Answer

Genetic information is passed from one generation to the next through

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When chromosomes fail to separate at either the first or second meiotic division,this

Correct AnswerverifiedShow Answer

Nondisjunction may cause

Correct AnswerverifiedShow Answer

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Meiotic cell division replicates a cell's DNA and then divides __.

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