Question 1

The hormone that induces contractions that lead to birth is ____.

Accepted Answer

A)  estrogen 
B)  prostaglandin 
C)  oxytocin 
D)  melatonin 
E)  progesterone 
A)  estrogen 
B)  prostaglandin 
C)  oxytocin 
D)  melatonin 
E)  progesterone

Question 2

Normally, only one sperm fertilizes an egg. What role do other sperm play?

Accepted Answer

A)  They assist the fertilizing sperm in penetrating the egg. 
B)  They trigger chemical changes in the egg. 
C)  They dissolve the outer barriers surrounding the oocyte. 
D)  They assist the fertilizing sperm in penetrating the egg and trigger chemical changes in the egg. 
E)  They trigger chemical changes in the egg and dissolve the outer barriers surrounding the oocyte. 
A)  They assist the fertilizing sperm in penetrating the egg. 
B)  They trigger chemical changes in the egg. 
C)  They dissolve the outer barriers surrounding the oocyte. 
D)  They assist the fertilizing sperm in penetrating the egg and trigger chemical changes in the egg. 
E)  They trigger chemical changes in the egg and dissolve the outer barriers surrounding the oocyte.

Question 3

____________________ equalizes the dosage of functional genes carried on the X chromosome in males and females.

Accepted Answer

The answer of ____________________ equalizes the dosage of functional genes...

Question 4

In dosage compensation, females have the same amount of X-linked gene products as males. This is brought about by

Accepted Answer

A)  the loss of one X chromosome from all somatic cells in females. 
B)  the accelerated production by genes on the Y chromosome. 
C)  the lowered rate of synthesis by genes on the X chromosome. 
D)  the inactivation of one X chromosome in all somatic cells of females. 
E)  none of these. 
A)  the loss of one X chromosome from all somatic cells in females. 
B)  the accelerated production by genes on the Y chromosome. 
C)  the lowered rate of synthesis by genes on the X chromosome. 
D)  the inactivation of one X chromosome in all somatic cells of females. 
E)  none of these.

Question 5

At around ___ weeks of fetal life, genes are activated that initiate sexual differentiation.

Accepted Answer

A)  9 
B)  12 
C)  15 
D)  21 
E)  25 
A)  9 
B)  12 
C)  15 
D)  21 
E)  25

Question 6

Androgen insensitivity is caused by lack of a specific ____________________ protein.

Accepted Answer

The answer of Androgen insensitivity is caused by lack of...

Question 7

Barr bodies are found only in normal males.

Accepted Answer

A) True 
 B)False

Question 8

The initial reports on Bruce, who became Brenda, confirmed __________in determining sexual identity.

Accepted Answer

A)  nature is more important than nurture 
B)  nurture is more important than nature 
C)  nature and nurture are equally important 
D)  nothing of interest 
A)  nature is more important than nurture 
B)  nurture is more important than nature 
C)  nature and nurture are equally important 
D)  nothing of interest

Question 9

Meiosis I in females is completed at ____________.

Accepted Answer

The answer of Meiosis I in females is completed at...

Question 10

In the uterus, the ____________________ is shed during menstruation.

Accepted Answer

The answer of In the uterus, the ____________________ is shed...

Question 11

Describe in detail two different examples of individuals where chromosomal sex and phenotypic sex are not consistent. In each case, should these individuals be considered male or female?

Accepted Answer

One example of an individual where chrom

Question 12

During oogenesis, cells divide unequally into a large functional oocyte and a small ____________________.

Accepted Answer

The answer of During oogenesis, cells divide unequally into a...

Question 13

During the third trimester, calcium in the mother's diet is used for development of the ____________________.

Accepted Answer

The answer of During the third trimester, calcium in the...

Question 14

In humans, the male is the sex whose gametes determine the sex of the offspring. Do you think this is a universal situation? Why or why not?

Accepted Answer

The statement that in humans, the male i

Question 15

The site of implantation of a blastocyst is the

Accepted Answer

A)  myometrium. 
B)  oviduct. 
C)  endometrium. 
D)  vagina. 
E)  ovary. 
A)  myometrium. 
B)  oviduct. 
C)  endometrium. 
D)  vagina. 
E)  ovary.

Question 16

It would be possible for a Klinefelter (XXY) cat to have tortoise shell color.

Accepted Answer

A) True 
 B)False

Question 17

Meiosis in females is completed

Accepted Answer

A)  at conception. 
B)  at ovulation. 
C)  at puberty. 
D)  at fertilization. 
E)  prior to conception. 
A)  at conception. 
B)  at ovulation. 
C)  at puberty. 
D)  at fertilization. 
E)  prior to conception.

Question 18

Individuals with androgen insensitivity are abnormal because

Accepted Answer

A)  their ovarian ducts do not develop. 
B)  their testes do not produce testosterone. 
C)  they have no Müllerian ducts. 
D)  they are missing a receptor protein for testosterone. 
E)  they have two copies of the SRY gene. 
A)  their ovarian ducts do not develop. 
B)  their testes do not produce testosterone. 
C)  they have no Müllerian ducts. 
D)  they are missing a receptor protein for testosterone. 
E)  they have two copies of the SRY gene.

Question 19

Human chorionic gonadotrophin (hCG) is produced during pregnancy by the ovaries.

Accepted Answer

A) True 
 B)False

Question 20

The phenotypic, gonadal, and chromosomal sex are always consistent.

Accepted Answer

A) True 
 B)False

The hormone that induces contractions that lead to birth is ____.

Normally, only one sperm fertilizes an egg. What role do other sperm play?

____________________ equalizes the dosage of functional genes carried on the X chromosome in males and females.

In dosage compensation, females have the same amount of X-linked gene products as males. This is brought about by

At around ___ weeks of fetal life, genes are activated that initiate sexual differentiation.

Androgen insensitivity is caused by lack of a specific ____________________ protein.

Barr bodies are found only in normal males.

The initial reports on Bruce, who became Brenda, confirmed __________in determining sexual identity.

Meiosis I in females is completed at ____________.

In the uterus, the ____________________ is shed during menstruation.

Describe in detail two different examples of individuals where chromosomal sex and phenotypic sex are not consistent. In each case, should these individuals be considered male or female?

During oogenesis, cells divide unequally into a large functional oocyte and a small ____________________.

During the third trimester, calcium in the mother's diet is used for development of the ____________________.

In humans, the male is the sex whose gametes determine the sex of the offspring. Do you think this is a universal situation? Why or why not?

The site of implantation of a blastocyst is the

It would be possible for a Klinefelter (XXY) cat to have tortoise shell color.

Meiosis in females is completed

Individuals with androgen insensitivity are abnormal because

Human chorionic gonadotrophin (hCG) is produced during pregnancy by the ovaries.

The phenotypic, gonadal, and chromosomal sex are always consistent.

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes From Generation to Generation

Pedigree Analysis in Human Genetics

Complex Patterns of Inheritance

Cytogenetics: Karyotypes and Chromosome Aberrations

DNA Structure and Chromosomal Organization

Gene Expression: From Genes to Proteins

From Proteins to Phenotypes

Mutation: the Source of Genetic Variation

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology, Genetic Testing, and Gene Therapy

Genes and the Immune System

Genetics of Behavior

Population Genetics and Human Evolution

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Exam 7: Development and Sex Determination

The hormone that induces contractions that lead to birth is ____.

Normally, only one sperm fertilizes an egg. What role do other sperm play?

____________________ equalizes the dosage of functional genes carried on the X chromosome in males and females.

In dosage compensation, females have the same amount of X-linked gene products as males. This is brought about by

At around ___ weeks of fetal life, genes are activated that initiate sexual differentiation.

Androgen insensitivity is caused by lack of a specific ____________________ protein.

Barr bodies are found only in normal males.

The initial reports on Bruce, who became Brenda, confirmed __________in determining sexual identity.

Meiosis I in females is completed at ____________.

In the uterus, the ____________________ is shed during menstruation.

Describe in detail two different examples of individuals where chromosomal sex and phenotypic sex are not consistent. In each case, should these individuals be considered male or female?

During oogenesis, cells divide unequally into a large functional oocyte and a small ____________________.

During the third trimester, calcium in the mother's diet is used for development of the ____________________.

In humans, the male is the sex whose gametes determine the sex of the offspring. Do you think this is a universal situation? Why or why not?

The site of implantation of a blastocyst is the

It would be possible for a Klinefelter (XXY) cat to have tortoise shell color.

Meiosis in females is completed

Individuals with androgen insensitivity are abnormal because

Human chorionic gonadotrophin (hCG) is produced during pregnancy by the ovaries.

The phenotypic, gonadal, and chromosomal sex are always consistent.

A Perspective on Human Genetics

Cells and Cell Division

Transmission of Genes From Generation to Generation

Pedigree Analysis in Human Genetics

Complex Patterns of Inheritance

Cytogenetics: Karyotypes and Chromosome Aberrations

DNA Structure and Chromosomal Organization

Gene Expression: From Genes to Proteins

From Proteins to Phenotypes

Mutation: the Source of Genetic Variation

Genes and Cancer

An Introduction to Genetic Technology

Biotechnology and Society

Genomes and Genomics

Reproductive Technology, Genetic Testing, and Gene Therapy

Genes and the Immune System

Genetics of Behavior

Population Genetics and Human Evolution

Filters