Question 1

After the completion of meiosis in humans,a diploid germ cell has produced cells with half the original chromosome number,generating __________ haploid nuclei.

Accepted Answer

A)  2
B)  3
C)  4
D)  23
E)  46F) C) and E)
G) None of the above

Question 2

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.miscellus has

Accepted Answer

A)  arisen only once with T.pratensis being the female parent.
B)  arisen only once with T.dubius being the female parent.
C)  arisen more than once with T.pratensis and T.dubius both being the female parent.
D)  arisen more than once with T.pratensis being the female parent.
E)  arisen more than once with T.dubius being the female parent.F) A) and E)
G) A) and B)

Question 3

If a diploid sperm fertilizes a diploid egg it will produce a ____ zygote.

Accepted Answer

A)  triploid
B)  tetraploid
C)  diploid
D)  haploid
E)  hexaploidF) A) and D)
G) A) and E)

Question 4

In meiosis,chromosomes containing sister chromatids (not homologous chromosomes) align along the center of the cell during

Accepted Answer

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

Question 5

Identical twins result from a single fertilization to form a zygote,which then clones itself.

Accepted Answer

A) True 
 B)False

Question 6

Genes A and B are on the same chromosome.If a person has one chromosome with the alleles AB and a second chromosome with the alleles ab,how could they produce a gamete with a chromosome containing the alleles Ab or aB?

Accepted Answer

A)  independent assortment
B)  random fertilization
C)  mitosis
D)  fragmentation of the chromosome
E)  crossing overF) A) and B)
G) A) and C)

Question 7

If the gene for presence or absence of hair is located on the maternal chromosomes #3,then the same gene is located on the paternal chromosome #3.

Accepted Answer

A) True 
 B)False

Question 8

The chromosomal designation for a human female is

Accepted Answer

A)  XYY.
B)  XY.
C)  YY.
D)  XX.
E)  None of the answers are correct.F) A) and D)
G) A) and C)

Question 9

What creates genetically-different offspring in both asexual and sexual reproduction?

Accepted Answer

A)  mutations
B)  mitosis
C)  meiosis
D)  mutations and mitosis
E)  mitosis and meiosisF) A) and D)
G) B) and D)

Question 10

What is an advantage of sexual reproduction over asexual reproduction?

Accepted Answer

A)  genetic variability during an ecological disaster
B)  genetic variability when the environment is stable
C)  faster reproduction
D)  requirement of less energy
E)  simpler form of reproductionF) B) and D)
G) C) and D)

Question 11

Genes A and B are on the same chromosome.What gametes could an individual with the allele combination AABB produce?

Accepted Answer

A)  AABB
B)  A
C)  AB
D)  B
E)  AABF) A) and C)
G) A) and B)

Question 12

For a plant to produce diploid sperm and egg ____ must occur during _____.

Accepted Answer

A)  nondisjunction,mitosis
B)  independent assortment,meiosis
C)  nondisjunction,meiosis
D)  independent assortment,mitosis
E)  independent assortment,fertilizationF) B) and E)
G) D) and E)

Question 13

If a woman in her late forties wants to have a baby and seeks medical advice,she will be advised that she is at greater risk of having a baby with Down syndrome.

Accepted Answer

A) True 
 B)False

Question 14

If a diploid cell goes through meiosis it will generate

Accepted Answer

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

Question 15

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.mirus would normally produce gametes with __ chromosomes.

Accepted Answer

A)  24
B)  12
C)  6
D)  2
E)  1F) D) and E)
G) A) and B)

Question 16

If the allele for presence or absence of hair is located on the maternal chromosomes #3,then the same allele is located on the paternal chromosome #3.

Accepted Answer

A) True 
 B)False

Question 17

If a haploid cell goes through meiosis it will generate

Accepted Answer

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

Question 18

The chromosomal designation for a human male is

Accepted Answer

A)  XX.
B)  XO.
C)  XY.
D)  YY.
E)  XXX.F) C) and D)
G) D) and E)

Question 19

In meiosis I,cytokinesis usually occurs after telophase I and produces

Accepted Answer

A)  one diploid cell with sister chromatids still attached.
B)  two haploid cells with sister chromatids still attached.
C)  four haploid cells.
D)  two diploid cells.
E)  one haploid cell.F) B) and D)
G) All of the above

Question 20

Mitosis occurs in germ cells throughout life.

Accepted Answer

A) True 
 B)False

Exam 9: Sexual Reproduction and Meiosis

If the gene for presence or absence of hair is located on the maternal chromosomes #3,then the same gene is located on the paternal chromosome #3.

Correct AnswerverifiedShow Answer

Identical twins result from a single fertilization to form a zygote,which then clones itself.

Correct AnswerverifiedShow Answer

What is an advantage of sexual reproduction over asexual reproduction?

Correct AnswerverifiedShow Answer

If a haploid cell goes through meiosis it will generate

Correct AnswerverifiedShow Answer

If a woman in her late forties wants to have a baby and seeks medical advice,she will be advised that she is at greater risk of having a baby with Down syndrome.

Correct AnswerverifiedShow Answer

The chromosomal designation for a human male is

Correct AnswerverifiedShow Answer

After the completion of meiosis in humans,a diploid germ cell has produced cells with half the original chromosome number,generating __________ haploid nuclei.

Correct AnswerverifiedShow Answer

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.mirus would normally produce gametes with __ chromosomes.

Correct AnswerverifiedShow Answer

The chromosomal designation for a human female is

Correct AnswerverifiedShow Answer

If a diploid sperm fertilizes a diploid egg it will produce a ____ zygote.

Correct AnswerverifiedShow Answer

Mitosis occurs in germ cells throughout life.

Correct AnswerverifiedShow Answer

For a plant to produce diploid sperm and egg ____ must occur during _____.

Correct AnswerverifiedShow Answer

In the section "Investigating Life: A New Species Is Born,but Who's the Daddy?",T.miscellus has

Correct AnswerverifiedShow Answer

In meiosis I,cytokinesis usually occurs after telophase I and produces

Correct AnswerverifiedShow Answer

What creates genetically-different offspring in both asexual and sexual reproduction?

Correct AnswerverifiedShow Answer

Genes A and B are on the same chromosome.If a person has one chromosome with the alleles AB and a second chromosome with the alleles ab,how could they produce a gamete with a chromosome containing the alleles Ab or aB?

Correct AnswerverifiedShow Answer

In meiosis,chromosomes containing sister chromatids (not homologous chromosomes) align along the center of the cell during

Correct AnswerverifiedShow Answer

Genes A and B are on the same chromosome.What gametes could an individual with the allele combination AABB produce?

Correct AnswerverifiedShow Answer

If a diploid cell goes through meiosis it will generate

Correct AnswerverifiedShow Answer

If the allele for presence or absence of hair is located on the maternal chromosomes #3,then the same allele is located on the paternal chromosome #3.

Correct AnswerverifiedShow Answer

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For a plant to produce diploid sperm and egg must occur during _.

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