Question 1

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 one X chromosome
D)  Must have one Y chromosome
E)  Cannot have an X chromosomeF) A) and D)
G) C) and E)

Question 2

In meiosis,homologous chromosomes align next to one another during:

Accepted Answer

A)  Interphase one
B)  Metaphase two
C)  Prophase one
D)  Metaphase one
E)  Prophase twoF) A) and B)
G) All of the above

Question 3

Meiosis is a process that produces:

Accepted Answer

A)  Sperm cells
B)  Egg cells
C)  Gametes
D)  Haploid cells
E)  All are correctF) None of the above
G) A) and E)

Question 4

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 D)
G) None of the above

Question 5

Nondisjunction may cause:

Accepted Answer

A)  Trisomy 21
B)  Turner Syndrome
C)  Jacobs Syndrome
D)  All are correct
E)  Klinefelter syndromeF) A) and B)
G) C) and E)

Question 6

When a woman's egg ovulates it arrests in metaphase II until it is fertilized by a sperm.How many chromosomes will be present in the egg?

Accepted Answer

A)  46
B)  2
C)  4
D)  23
E)  1F) C) and E)
G) A) and E)

Question 7

Figure 9.19 
-Based on Figure 9.19,T.mirus would normally produce gametes with __ chromosomes.

Accepted Answer

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

Question 8

The chromosomal designation for a human male is:

Accepted Answer

A)  XX
B)  XO
C)  XY
D)  YY
E)  XXXF) C) and E)
G) C) and D)

Question 9

The number of chromosomes in a daughter cell produced by meiosis is the same as the number of chromosomes in the parent cell.

Accepted Answer

A) True 
 B)False

Question 10

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)  Both A and D are correctF) A) and E)
G) C) and E)

Question 11

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 isn't possibleF) A) and B)
G) B) and E)

Question 12

A diploid germ cell reduces its chromosome number by half to generate four haploid nuclei in:

Accepted Answer

A)  Fertilization
B)  Mitosis
C)  Meiosis
D)  Replication
E)  ParthenogenesisF) B) and E)
G) C) and E)

Question 13

Without genetic diversity,a population might more easily fall victim to parasites and pathogens.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

In humans,germ cells are located in the:

Accepted Answer

A)  Ovaries and bone marrow
B)  Bone marrow
C)  Testes
D)  Ovaries
E)  Testes and ovariesF) A) and C)
G) B) and D)

Question 16

Figure 9.20 
-Based on Figure 9.20,T.mirus 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 parentF) C) and D)
G) A) and C)

Question 17

In plants,haploid gametophytes produce gametes by:

Accepted Answer

A)  Meiosis
B)  Mitosis
C)  Fertilization
D)  Sporulation
E)  Non-disjunctionF) C) and D)
G) C) and E)

Question 18

In meiosis,homologous chromosomes separate during:

Accepted Answer

A)  Prophase one
B)  Prophase two
C)  Anaphase one
D)  Metaphase one
E)  Anaphase twoF) D) and E)
G) A) and B)

Question 19

The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.

Accepted Answer

A) True 
 B)False

Question 20

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 individualF) A) and E)
G) A) and D)

Exam 9: Sexual Reproduction and Meiosis

In meiosis,homologous chromosomes align next to one another during:

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

A diploid germ cell reduces its chromosome number by half to generate four haploid nuclei in:

Correct AnswerverifiedShow Answer

If a haploid cell goes through mitosis it will generate:

Correct AnswerverifiedShow Answer

In meiosis,homologous chromosomes separate during:

Correct AnswerverifiedShow Answer

Nondisjunction may cause:

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

Meiosis is a process that produces:

Correct AnswerverifiedShow Answer

In humans,germ cells are located in the:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In plants,haploid gametophytes produce gametes by:

Correct AnswerverifiedShow Answer

Without genetic diversity,a population might more easily fall victim to parasites and pathogens.

Correct AnswerverifiedShow Answer

Figure 9.19 -Based on Figure 9.19,T.mirus would normally produce gametes with __ chromosomes.

Correct AnswerverifiedShow Answer

Figure 9.20 -Based on Figure 9.20,T.mirus has:

Correct AnswerverifiedShow Answer

The number of chromosomes in a daughter cell produced by mitosis is the same as the number of chromosomes in the parent cell.

Correct AnswerverifiedShow Answer

When a woman's egg ovulates it arrests in metaphase II until it is fertilized by a sperm.How many chromosomes will be present in the egg?

Correct AnswerverifiedShow Answer

The X chromosome is:

Correct AnswerverifiedShow Answer

Alternate forms of the same gene:

Correct AnswerverifiedShow Answer

The chromosomal designation for a human male is:

Correct AnswerverifiedShow Answer

The number of chromosomes in a daughter cell produced by meiosis is the same as the number of chromosomes in the parent cell.

Correct AnswerverifiedShow Answer

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