Question 1

Which of the following is a diploid cell destined for a specialized role in the production of gametes?

Accepted Answer

A) somatic cell 
B) germ-line cell 
C) spermatid 
D) polar body 
E) ootid 
A) somatic cell 
B) germ-line cell 
C) spermatid 
D) polar body 
E) ootid B

Question 2

Chromosome duplication occurs prior to both mitosis and meiosis.

Accepted Answer

A) True 
 B)False  True

Question 3

Nondisjunction can occur at either the first or second division of meiosis.XYY individuals would most likely arise from nondisjunction at the ________ meiotic division in the ________.

Accepted Answer

A) first; mother 
B) second; mother 
C) first; father 
D) second; father 
E) More than one of the choices could give rise to XYY individuals. 
A) first; mother 
B) second; mother 
C) first; father 
D) second; father 
E) More than one of the choices could give rise to XYY individuals. D

Question 4

Red-green color blindness is controlled by an X-linked gene in humans.The allele that causes color blindness is recessive to the allele for normal vision.A man and woman both with normal vision had color-blind fathers.If this man and woman have a child, what is the probability that the child will be color blind?

Accepted Answer

A) 1/2 
B) 1/4 
C) 1/8 
D) 1/3 
E) 0 
A) 1/2 
B) 1/4 
C) 1/8 
D) 1/3 
E) 0

Question 5

Which of the following events occurs during mitosis but not during meiosis?

Accepted Answer

A) Sister chromatids segregate. 
B) Homologous chromosomes pair. 
C) Crossing-over occurs between homologous chromosomes. 
D) Chromosomes align on the metaphase plate. 
E) None of the choices is correct. 
A) Sister chromatids segregate. 
B) Homologous chromosomes pair. 
C) Crossing-over occurs between homologous chromosomes. 
D) Chromosomes align on the metaphase plate. 
E) None of the choices is correct.

Question 6

Which term describes chromosomes whose centromeres are located closer to one end of the chromosome?

Accepted Answer

A) metacentric 
B) acrocentric 
C) holocentric 
D) anacentric 
A) metacentric 
B) acrocentric 
C) holocentric 
D) anacentric

Question 7

What is the correct order of these meiotic events? A Segregation of homologous chromosomes to opposite poles.
B Segregation of sister chromatids to opposite poles.
C Alignment of homologous pairs on the midplate of the cell.
D Pairing and synapsis of homologous chromosomes.
E Condensation of chromosomes in a diploid nucleus.

Accepted Answer

A) CDEAB 
B) DCEBA 
C) EDCBA 
D) EDCAB 
E) DCABE 
A) CDEAB 
B) DCEBA 
C) EDCBA 
D) EDCAB 
E) DCABE

Question 8

Nondisjunction can occur at either the first or second division of meiosis.XXY individuals could arise from nondisjunction at the ________ meiotic division in the ________.

Accepted Answer

A) first; mother 
B) second; mother 
C) first; father 
D) second; father 
E) More than one of the choices could give rise to XXY individuals. 
A) first; mother 
B) second; mother 
C) first; father 
D) second; father 
E) More than one of the choices could give rise to XXY individuals.

Question 9

The chromosomal structure to which spindle fibers attach during the mitotic divisions is the

Accepted Answer

A) chromatid. 
B) centrosome. 
C) kinetochore. 
D) metaphase plate. 
E) centromere. 
A) chromatid. 
B) centrosome. 
C) kinetochore. 
D) metaphase plate. 
E) centromere.

Question 10

The period between meiosis I and II is termed interkinesis.

Accepted Answer

A) True 
 B)False

Question 11

In human oogenesis, how many chromosomes does an oogonium carry?

Accepted Answer

A) 22 
B) 23 
C) 44 
D) 46 
E) 92 
A) 22 
B) 23 
C) 44 
D) 46 
E) 92

Question 12

In human oogenesis, how many chromosomes does an ovum carry?

Accepted Answer

A) 22 
B) 23 
C) 44 
D) 46 
E) 92 
A) 22 
B) 23 
C) 44 
D) 46 
E) 92

Question 13

A variable trait in corn is the presence or absence of knobs at particular sites on some chromosomes.The allele present on each chromosome determines whether or not that chromosome has a knob.Suppose that one member of each of two pairs of homologs in a corn plant has a knob.If this plant is crossed with a knobless plant, what percentage of the offspring is expected to have only knobless chromosomes?

Accepted Answer

A) 100% 
B) 75% 
C) 50% 
D) 25% 
E) 0% 
A) 100% 
B) 75% 
C) 50% 
D) 25% 
E) 0%

Question 14

In animal gametogenesis, a single primary spermatocyte generates ________ sperm, while a single primary oocyte generates ________ egg(s).

Accepted Answer

A) 1; 4 
B) 1; 1 
C) 4; 2 
D) 4; 1 
E) 4; 4 
A) 1; 4 
B) 1; 1 
C) 4; 2 
D) 4; 1 
E) 4; 4

Question 15

Which sex chromosomes are present in only one sex?

Accepted Answer

A) X and Z 
B) X and W 
C) Y and Z 
D) Y and W 
E) X and Y 
A) X and Z 
B) X and W 
C) Y and Z 
D) Y and W 
E) X and Y

Question 16

The cells that undergo meiosis in males are

Accepted Answer

A) spermatocytes. 
B) spermatogonia. 
C) spermatids. 
D) oocytes. 
E) sperm. 
A) spermatocytes. 
B) spermatogonia. 
C) spermatids. 
D) oocytes. 
E) sperm.

Question 17

In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome.Red-green color blindness is caused by an X-linked recessive allele.Suppose a color-blind man and a woman with normal vision and no family history of color blindness married and had a daughter who was color blind and had Turner syndrome.Which event could have given rise to this offspring?

Accepted Answer

A) nondisjunction at meiosis I in the mother 
B) nondisjunction at meiosis II in the mother 
C) nondisjunction at meiosis I in the father 
D) nondisjunction at meiosis II in the father 
E) nondisjunction at either meiosis I or meiosis II in the mother 
A) nondisjunction at meiosis I in the mother 
B) nondisjunction at meiosis II in the mother 
C) nondisjunction at meiosis I in the father 
D) nondisjunction at meiosis II in the father 
E) nondisjunction at either meiosis I or meiosis II in the mother

Question 18

The stage of mitosis when chromosomes condense to form rod-shaped structures visible under the microscope is called

Accepted Answer

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

Question 19

What is the correct order of these mitotic events? A Chromosomes align on the midplate of the cell.
B Kinetochores begin attaching to spindle fibers.
C Nuclear membrane reforms and chromosomes decondense.
D Chromosomes condense and centrosomes migrate to opposite sides of nucleus.
E Sister chromatids separate and move to opposite poles.

Accepted Answer

A) BDACE 
B) DABEC 
C) DBAEC 
D) ABDCE 
E) EDBAC 
A) BDACE 
B) DABEC 
C) DBAEC 
D) ABDCE 
E) EDBAC

Question 20

A chromosome with two arms of similar length is referred to as

Accepted Answer

A) acrocentric. 
B) homologous. 
C) telocentric. 
D) metazoan. 
E) metacentric. 
A) acrocentric. 
B) homologous. 
C) telocentric. 
D) metazoan. 
E) metacentric.

Which of the following is a diploid cell destined for a specialized role in the production of gametes?

Chromosome duplication occurs prior to both mitosis and meiosis.

Nondisjunction can occur at either the first or second division of meiosis.XYY individuals would most likely arise from nondisjunction at the meiotic division in the .

Which of the following events occurs during mitosis but not during meiosis?

Which term describes chromosomes whose centromeres are located closer to one end of the chromosome?

Nondisjunction can occur at either the first or second division of meiosis.XXY individuals could arise from nondisjunction at the meiotic division in the .

The chromosomal structure to which spindle fibers attach during the mitotic divisions is the

The period between meiosis I and II is termed interkinesis.

In human oogenesis, how many chromosomes does an oogonium carry?

In human oogenesis, how many chromosomes does an ovum carry?

In animal gametogenesis, a single primary spermatocyte generates sperm, while a single primary oocyte generates egg(s).

Which sex chromosomes are present in only one sex?

The cells that undergo meiosis in males are

The stage of mitosis when chromosomes condense to form rod-shaped structures visible under the microscope is called

A chromosome with two arms of similar length is referred to as

Genetics: the Study of Biological Information

Mendels Principles of Heredity

Extensions to Mendels Laws

Linkage, Recombination, and the Mapping of Genes on Chromosomes

DNA Structure, Replication, and Recombination

Anatomy and Function of a Gene: Dissection Through Mutation

Gene Expression: the Flow of Information From Dna to Rna to Protein

Digital Analysis of Dna

Genome Annotation

Analyzing Genomic Variation

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

The Genetics of Complex Traits

Filters

Exam 4: The Chromosome Theory of Inheritance

Which of the following is a diploid cell destined for a specialized role in the production of gametes?

Chromosome duplication occurs prior to both mitosis and meiosis.

Nondisjunction can occur at either the first or second division of meiosis.XYY individuals would most likely arise from nondisjunction at the ________ meiotic division in the ________.

Which of the following events occurs during mitosis but not during meiosis?

Which term describes chromosomes whose centromeres are located closer to one end of the chromosome?

Nondisjunction can occur at either the first or second division of meiosis.XXY individuals could arise from nondisjunction at the ________ meiotic division in the ________.

The chromosomal structure to which spindle fibers attach during the mitotic divisions is the

The period between meiosis I and II is termed interkinesis.

In human oogenesis, how many chromosomes does an oogonium carry?

In human oogenesis, how many chromosomes does an ovum carry?

In animal gametogenesis, a single primary spermatocyte generates ________ sperm, while a single primary oocyte generates ________ egg(s).

Which sex chromosomes are present in only one sex?

The cells that undergo meiosis in males are

The stage of mitosis when chromosomes condense to form rod-shaped structures visible under the microscope is called

A chromosome with two arms of similar length is referred to as

Genetics: the Study of Biological Information

Mendels Principles of Heredity

Extensions to Mendels Laws

Linkage, Recombination, and the Mapping of Genes on Chromosomes

DNA Structure, Replication, and Recombination

Anatomy and Function of a Gene: Dissection Through Mutation

Gene Expression: the Flow of Information From Dna to Rna to Protein

Digital Analysis of Dna

Genome Annotation

Analyzing Genomic Variation

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

The Genetics of Complex Traits

Filters

Nondisjunction can occur at either the first or second division of meiosis.XYY individuals would most likely arise from nondisjunction at the meiotic division in the .

Nondisjunction can occur at either the first or second division of meiosis.XXY individuals could arise from nondisjunction at the meiotic division in the .

In animal gametogenesis, a single primary spermatocyte generates sperm, while a single primary oocyte generates egg(s).