Question 1

Amniocentesis is

Accepted Answer

A)  a surgical means of repairing deformities. 
B)  a form of chemotherapy that modifies or inhibits gene expression or the function of gene products. 
C)  used in prenatal diagnosis to detect chromosomal mutations and metabolic disorders in embryos. 
D)  a form of gene replacement therapy. 
E)  all of these. 
A)  a surgical means of repairing deformities. 
B)  a form of chemotherapy that modifies or inhibits gene expression or the function of gene products. 
C)  used in prenatal diagnosis to detect chromosomal mutations and metabolic disorders in embryos. 
D)  a form of gene replacement therapy. 
E)  all of these. C

Question 2

Matching.Match the cause with the disorder.
a.autosomal recessive inheritance; lactose metabolism is blocked
b.nondisjunction of the twenty-first chromosomal pair
c.X-linked recessive inheritance
d.nondisjunction of the sex chromosomes
-Down syndrome

Accepted Answer

B

Question 3

A chromosome's gene sequence that was ABCDEFG before modification and ABCDCDEFG afterward is an example of

Accepted Answer

A)  inversion. 
B)  deletion. 
C)  duplication. 
D)  translocation. 
E)  aneuploidy. 
A)  inversion. 
B)  deletion. 
C)  duplication. 
D)  translocation. 
E)  aneuploidy. C

Question 4

Classification.Answer the following questions in reference to the five items listed below.
a.12
b.23
c.24
d.46
e.47
-How many chromosomes are present in each cell of the germ cell line for a tetraploid species where its normal complement of chromosomes is 48?

Accepted Answer

The answer of Classification.Answer the following questions in reference to...

Question 5

Classification.Answer the following questions in reference to the five items listed below.
a.12
b.23
c.24
d.46
e.47
-How many chromosomes does each somatic cell have in a human male who has two X chromosomes?

Accepted Answer

The answer of Classification.Answer the following questions in reference to...

Question 6

Classification.Answer the following questions in reference to the five items listed below.
a.12
b.23
c.24
d.46
e.47
-The normal sperm cell of species X carries 11 chromosomes.Following nondisjunction in the formation of secondary spermatocytes and their subsequent fertilization of normal ova, some of the zygotes will have 21 chromosomesand the remainder will have how many chromosomes?

Accepted Answer

The answer of Classification.Answer the following questions in reference to...

Question 7

A chromosome's gene sequence that was ABCDEFG before damage and ABFEDCG after is an example of

Accepted Answer

A)  inversion. 
B)  deletion. 
C)  duplication. 
D)  translocation. 
E)  aneuploidy. 
A)  inversion. 
B)  deletion. 
C)  duplication. 
D)  translocation. 
E)  aneuploidy.

Question 8

-An X-linked carrier is a

Accepted Answer

A)  homozygous dominant female. 
B)  heterozygous female. 
C)  homozygous recessive female. 
D)  homozygous male. 
E)  heterozygous male. 
A)  homozygous dominant female. 
B)  heterozygous female. 
C)  homozygous recessive female. 
D)  homozygous male. 
E)  heterozygous male.

Question 9

MATCHING
Matching.Choose the most appropriate answer for each.
a.3n; generally sterile
b.a chromosome segment is permanently transferred to a nonhomologous chromosome
c.(2n - 1); a zygote deprived of a chromosome
d.a repeat of a particular DNA sequence in the same chromosome or in nonhomologous ones
e.(2n + 1); three chromosomes of the same kind are present in a set of chromosomes
f.a piece of the chromosome is inadvertently left out during the repair process
g.inhibits microtubule assembly; used in karyotyping
h.a chromosome segment that has been cut out and rejoined at the same place, but backward
-trisomy

Accepted Answer

The answer of MATCHING
Matching.Choose the most appropriate answer for each.
a.3n;...

Question 10

A human X-linked gene is

Accepted Answer

A)  found only in males. 
B)  more frequently expressed in females. 
C)  found on the Y chromosome. 
D)  transmitted from father to son. 
E)  found on the X chromosome. 
A)  found only in males. 
B)  more frequently expressed in females. 
C)  found on the Y chromosome. 
D)  transmitted from father to son. 
E)  found on the X chromosome.

Question 11

MATCHING
Matching.Choose the most appropriate answer for each.
a.3n; generally sterile
b.a chromosome segment is permanently transferred to a nonhomologous chromosome
c.(2n - 1); a zygote deprived of a chromosome
d.a repeat of a particular DNA sequence in the same chromosome or in nonhomologous ones
e.(2n + 1); three chromosomes of the same kind are present in a set of chromosomes
f.a piece of the chromosome is inadvertently left out during the repair process
g.inhibits microtubule assembly; used in karyotyping
h.a chromosome segment that has been cut out and rejoined at the same place, but backward
-colchicine

Accepted Answer

The answer of MATCHING
Matching.Choose the most appropriate answer for each.
a.3n;...

Question 12

MATCHING
Matching.Choose the most appropriate answer for each.
a.3n; generally sterile
b.a chromosome segment is permanently transferred to a nonhomologous chromosome
c.(2n - 1); a zygote deprived of a chromosome
d.a repeat of a particular DNA sequence in the same chromosome or in nonhomologous ones
e.(2n + 1); three chromosomes of the same kind are present in a set of chromosomes
f.a piece of the chromosome is inadvertently left out during the repair process
g.inhibits microtubule assembly; used in karyotyping
h.a chromosome segment that has been cut out and rejoined at the same place, but backward
-triploidy

Accepted Answer

The answer of MATCHING
Matching.Choose the most appropriate answer for each.
a.3n;...

Question 13

-The above figure represents which of the following:

Accepted Answer

A)  a male with trisomy 21 
B)  a female with trisomy 21 
C)  a result caused by the use of colchicine 
D)  a gorilla globin gene spread 
E)  none of these 
A)  a male with trisomy 21 
B)  a female with trisomy 21 
C)  a result caused by the use of colchicine 
D)  a gorilla globin gene spread 
E)  none of these

Question 14

Males tend to be affected in greater numbers by X-linked recessive genetic disorders than are females because

Accepted Answer

A)  females have two dominant genes for the disorder. 
B)  males have only one X chromosome. 
C)  males have a double dose of the gene. 
D)  Y chromosomes are not as strong as X chromosomes. 
E)  none of these. 
A)  females have two dominant genes for the disorder. 
B)  males have only one X chromosome. 
C)  males have a double dose of the gene. 
D)  Y chromosomes are not as strong as X chromosomes. 
E)  none of these.

Question 15

Classification.Select the best disorder listed below to match the following statements.
a.Galactosemia
b.Turner syndrome
c.Klinefelter's syndrome
d.hemophilia A
e.Down syndrome
-Color blindness is an X-linked recessive gene.Two normal-vision parents produce a color-blind child.
(a)
Is this child male or female?
(b)
What are the genotypes of the parents?
(c)
What are the chances that their next child will be a color-blind daughter?

Accepted Answer

(a)
male
(b)
Cc * CY

Question 16

Males that tend to be taller than average and show mild mental impairment may have

Accepted Answer

A)  XXY chromosomes. 
B)  XYY chromosomes. 
C)  Turner syndrome. 
D)  Down syndrome. 
E)  none of these. 
A)  XXY chromosomes. 
B)  XYY chromosomes. 
C)  Turner syndrome. 
D)  Down syndrome. 
E)  none of these.

Question 17

-The Punnett square illustration above shows that theoretically

Accepted Answer

A)  half of human sperm carry a Y chromosome. 
B)  half of human zygotes are XY. 
C)  all zygotes carry an X chromosome. 
D)  gender depends upon which type of sperm fertilizes the egg. 
E)  all of these are true. 
A)  half of human sperm carry a Y chromosome. 
B)  half of human zygotes are XY. 
C)  all zygotes carry an X chromosome. 
D)  gender depends upon which type of sperm fertilizes the egg. 
E)  all of these are true.

Question 18

-Achondroplasia

Accepted Answer

A)  is inherited as an autosomal recessive condition. 
B)  affects about one in one million people. 
C)  affects only homozygotes. 
D)  is characterized by abnormally short arms and legs. 
E)  is all of these. 
A)  is inherited as an autosomal recessive condition. 
B)  affects about one in one million people. 
C)  affects only homozygotes. 
D)  is characterized by abnormally short arms and legs. 
E)  is all of these.

Question 19

Classification.Select the best disorder listed below to match the following statements.
a.Galactosemia
b.Turner syndrome
c.Klinefelter's syndrome
d.hemophilia A
e.Down syndrome
-This disorder is an autosomal recessive disorder.

Accepted Answer

The answer of Classification.Select the best disorder listed below to...

Question 20

MATCHING
Matching.Choose the most appropriate answer for each.
a.3n; generally sterile
b.a chromosome segment is permanently transferred to a nonhomologous chromosome
c.(2n - 1); a zygote deprived of a chromosome
d.a repeat of a particular DNA sequence in the same chromosome or in nonhomologous ones
e.(2n + 1); three chromosomes of the same kind are present in a set of chromosomes
f.a piece of the chromosome is inadvertently left out during the repair process
g.inhibits microtubule assembly; used in karyotyping
h.a chromosome segment that has been cut out and rejoined at the same place, but backward
-deletion

Accepted Answer

The answer of MATCHING
Matching.Choose the most appropriate answer for each.
a.3n;...

Exam 14: Chromosomes and Human Inheritance

Amniocentesis is

Matching.Match the cause with the disorder. a.autosomal recessive inheritance; lactose metabolism is blocked b.nondisjunction of the twenty-first chromosomal pair c.X-linked recessive inheritance d.nondisjunction of the sex chromosomes -Down syndrome

A chromosome's gene sequence that was ABCDEFG before modification and ABCDCDEFG afterward is an example of

Classification.Answer the following questions in reference to the five items listed below. a.12 b.23 c.24 d.46 e.47 -How many chromosomes are present in each cell of the germ cell line for a tetraploid species where its normal complement of chromosomes is 48?

Classification.Answer the following questions in reference to the five items listed below. a.12 b.23 c.24 d.46 e.47 -How many chromosomes does each somatic cell have in a human male who has two X chromosomes?

A chromosome's gene sequence that was ABCDEFG before damage and ABFEDCG after is an example of

-An X-linked carrier is a

A human X-linked gene is

-The above figure represents which of the following:

Males tend to be affected in greater numbers by X-linked recessive genetic disorders than are females because

Males that tend to be taller than average and show mild mental impairment may have

-The Punnett square illustration above shows that theoretically

-Achondroplasia

Classification.Select the best disorder listed below to match the following statements. a.Galactosemia b.Turner syndrome c.Klinefelter's syndrome d.hemophilia A e.Down syndrome -This disorder is an autosomal recessive disorder.

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

Ground Rules of Metabolism

Where It Startsphotosynthesis

How Cells Release Chemical Energy

Dna Structure and Function

From Dna to Protein

Gene Control

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information About Species

Lifes Origin and Early Evolution

Viruses and Prokaryotes

Protiststhe Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolutionthe Invertebrates

Animal Evolutionthe Chordates

Animal Evolutionhuman Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters