Question 1

A cell with two full sets of chromosomes would be termed a _______________ cell.

Accepted Answer

A)   somatic
B)   germ
C)   sister
D)   haploid
E)   diploidF) A) and B)
G) A) and C)

Question 2

If you mate a donkey (2n = 62) with a horse (2n = 64) you get a mule.Mules are sterile and cannot produce gametes by meiosis because they

Accepted Answer

A)   contain too few chromosomes.
B)   have an odd number of chromosomes.
C)   have an even number of chromosomes.
D)   contain too many chromosomes.
E)   lack genes that are essential for life.F) D) and E)
G) A) and B)

Question 3

A size-ordered chart,containing images of all the chromatids (chromosomes) of a cell,is

Accepted Answer

A)   used to detect damages to chromatids.
B)   used to show autosomes and sex chromosomes.
C)   All of the answer choices are correct.
D)   used to detect genetic abnormalities such as trisomy.
E)   a karyotype.F) C) and E)
G) B) and C)

Question 4

A desert plant called Kalanchoe can reproduce,either with sexual reproduction through flowers,or asexually by budding off miniature leaf and root clusters from its leaves.When buds are produced,they land on the ground,take root,and grow,genetically identical to the original.If budding is used for several years,a large area may be covered with these descendents from the same original plant.The resulting population of plants will

Accepted Answer

A)   adapt to environmental change, by shifting from asexual budding to conjugation, so they can sexually reproduce.
B)   be more strongly able to adapt to environmental change, compared to the Kalanchoe that are reproducing sexually.
C)   None of these answer options represent a likely response to environmental change.
D)   not be as strongly able to adapt to environmental change, compared to the Kalanchoe that are reproducing sexually.
E)   automatically experience more genetic mutations, so that some of the plants will survive environmental change.F) C) and E)
G) All of the above

Question 5

All sexual life cycles include

Accepted Answer

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

Question 6

In humans,the sex of a child is determined by the

Accepted Answer

A)   number of autosomes in the egg.
B)   number of autosomes in the sperm.
C)   number of X chromosomes in the egg.
D)   sex chromosome in the egg.
E)   sex chromosome in the sperm.F) B) and D)
G) A) and E)

Question 7

Among humans,you can observe that there is variability in shape (size) ,skin color,and other traits.The variety in a small population results from ___ in sexual reproduction and meiosis.

Accepted Answer

A)   independent assortment
B)   random fertilization
C)   All of the answer choices are correct.
D)   crossing overE) C) and D)
F) B) and D)

Question 8

Diploid means having

Accepted Answer

A)   the somatic cells have all chromosomes except the sex chromosomes.
B)   two complete sets of homologous chromosomes.
C)   one complete set of chromosomes in each gamete.
D)   both the allele and the autosome form of chromosomes.
E)   a single set of chromosomes not having homologous pairs.F) A) and C)
G) B) and C)

Question 9

In a cell dividing by meiosis,DNA is replicated

Accepted Answer

A)   between meiosis I and again before meiosis II.
B)   during prophase I.
C)   before meiosis I.
D)   during prophase II.E) None of the above
F) A) and D)

Question 10

In meiosis,homologous chromosomes align next to one another during

Accepted Answer

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

Question 11

How many of the mother's chromosomes are present in the egg before it is fertilized?

Accepted Answer

A)   1
B)   23
C)   46
D)   4
E)   2F) None of the above
G) A) and D)

Question 12

The process by which homologous chromosomes exchange genetic material

Accepted Answer

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

Question 13

Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

Accepted Answer

A)   fertilization of a diploid somatic cell by a haploid sperm
B)   nondisjunction in meiosis followed by normal fertilization
C)   fertilization of a haploid egg by two haploid sperm
D)   nondisjunction in mitosis followed by normal fertilization
E)   fertilization of a haploid egg by a haploid spermF) B) and E)
G) D) and E)

Question 14

If a woman in her late forties wants to have a baby and seeks medical advice,she would most likely be advised that she is at much greater risk of having a baby with Klinefelter's syndrome.

Accepted Answer

A) True 
 B)False

Question 15

A karyotype is produced by inducing cells to divide in culture,and then treating them with a molecule that arrests

Accepted Answer

A)   telophase.
B)   anaphase.
C)   metaphase.
D)   interphase.
E)   prophase.F) A) and B)
G) C) and E)

Question 16

Pollen contains _____ that produce _____

Accepted Answer

A)   gametophytes; sperm.
B)   sperm; spores.
C)   sporophytes; sperm.
D)   gametophytes; spores.
E)   sporophytes; spores.F) A) and B)
G) B) and E)

Question 17

A hybrid plant becoming a new species in a generation is an example of

Accepted Answer

A)   genetic drift.
B)   stabilizing selection.
C)   punctuated equilibrium.
D)   artificial selection.
E)   gradualism.F) C) and D)
G) A) and B)

Question 18

Discern which statement below is not a correct link in human gamete production.

Accepted Answer

A)   Gametogenesis produces gametes in human testes and ovaries.
B)   Gametes form after meiosis, in the process of parthenogenesis.
C)   Human eggs are produced by oogenesis in the ovaries.
D)   Meiosis to form eggs is only completed if an egg cell is fertilized.
E)   Human sperm are formed through spermatogenesis in the testes.F) All of the above
G) A) and E)

Question 19

A gamete having more than one complete set of paired chromosomes

Accepted Answer

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

Question 20

The chromosome content of most human cells does not include

Accepted Answer

A)   a pair of non-homologous X and Y chromosomes (in males) .
B)   2 pairs of sex chromosomes.
C)   23 pairs of chromosomes.
D)   a pair of homologous X chromosomes (in females) .
E)   22 pairs of autosomes.F) A) and B)
G) A) and C)

Exam 9: Sexual Reproduction and Meiosis

In meiosis,homologous chromosomes align next to one another during

Correct Answer
verified

Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

Correct Answer
verified

How many of the mother's chromosomes are present in the egg before it is fertilized?

Correct Answer
verified

A cell with two full sets of chromosomes would be termed a _______________ cell.

Correct Answer
verified

If you mate a donkey (2n = 62) with a horse (2n = 64) you get a mule.Mules are sterile and cannot produce gametes by meiosis because they

Correct Answer
verified

In humans,the sex of a child is determined by the

Correct Answer
verified

All sexual life cycles include

Correct Answer
verified

Correct Answer
verified

Diploid means having

Correct Answer
verified

A size-ordered chart,containing images of all the chromatids (chromosomes) of a cell,is

Correct Answer
verified

Discern which statement below is not a correct link in human gamete production.

Correct Answer
verified

The process by which homologous chromosomes exchange genetic material

Correct Answer
verified

In a cell dividing by meiosis,DNA is replicated

Correct Answer
verified

Among humans,you can observe that there is variability in shape (size) ,skin color,and other traits.The variety in a small population results from ___ in sexual reproduction and meiosis.

Correct Answer
verified

A gamete having more than one complete set of paired chromosomes

Correct Answer
verified

Pollen contains _ that produce _

Correct Answer
verified

A karyotype is produced by inducing cells to divide in culture,and then treating them with a molecule that arrests

Correct Answer
verified

A hybrid plant becoming a new species in a generation is an example of

Correct Answer
verified

The chromosome content of most human cells does not include

Correct Answer
verified

If a woman in her late forties wants to have a baby and seeks medical advice,she would most likely be advised that she is at much greater risk of having a baby with Klinefelter's syndrome.

Correct Answer
verified

Exam 9: Sexual Reproduction and Meiosis

In meiosis,homologous chromosomes align next to one another during

Correct AnswerverifiedShow Answer

Most cultivated bananas are triploid.How could these be generated from diploid parent banana plants?

Correct AnswerverifiedShow Answer

How many of the mother's chromosomes are present in the egg before it is fertilized?

Correct AnswerverifiedShow Answer

A cell with two full sets of chromosomes would be termed a _______________ cell.

Correct AnswerverifiedShow Answer

If you mate a donkey (2n = 62) with a horse (2n = 64) you get a mule.Mules are sterile and cannot produce gametes by meiosis because they

Correct AnswerverifiedShow Answer

In humans,the sex of a child is determined by the

Correct AnswerverifiedShow Answer

All sexual life cycles include

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Diploid means having

Correct AnswerverifiedShow Answer

A size-ordered chart,containing images of all the chromatids (chromosomes) of a cell,is

Correct AnswerverifiedShow Answer

Discern which statement below is not a correct link in human gamete production.

Correct AnswerverifiedShow Answer

The process by which homologous chromosomes exchange genetic material

Correct AnswerverifiedShow Answer

In a cell dividing by meiosis,DNA is replicated

Correct AnswerverifiedShow Answer

Among humans,you can observe that there is variability in shape (size) ,skin color,and other traits.The variety in a small population results from ___ in sexual reproduction and meiosis.

Correct AnswerverifiedShow Answer

A gamete having more than one complete set of paired chromosomes

Correct AnswerverifiedShow Answer

Pollen contains _____ that produce _____

Correct AnswerverifiedShow Answer

A karyotype is produced by inducing cells to divide in culture,and then treating them with a molecule that arrests

Correct AnswerverifiedShow Answer

A hybrid plant becoming a new species in a generation is an example of

Correct AnswerverifiedShow Answer

The chromosome content of most human cells does not include

Correct AnswerverifiedShow Answer

If a woman in her late forties wants to have a baby and seeks medical advice,she would most likely be advised that she is at much greater risk of having a baby with Klinefelter's syndrome.

Correct AnswerverifiedShow Answer

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Pollen contains _ that produce _

Correct Answer
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