Question 1

Match the following descriptions with the appropriate letter.
  
-fallopian tube

Accepted Answer

A

Question 2

An individual who is (47,XXY)would be phenotypically female.

Accepted Answer

A) True 
 B)False  False

Question 3

When can ultrasound be used to determine the sex of a fetus?

Accepted Answer

A)  within days after implantation 
B)  1-2 weeks after fertilization 
C)  at the end of the first trimester 
D)  at the beginning of the second trimester 
E)  not until the third trimester 
A)  within days after implantation 
B)  1-2 weeks after fertilization 
C)  at the end of the first trimester 
D)  at the beginning of the second trimester 
E)  not until the third trimester D

Question 4

In humans,fertilization usually occurs

Accepted Answer

A)  in the ovary. 
B)  in the fallopian tube. 
C)  in the vagina. 
D)  in the uterus. 
E)  right at the cervix. 
A)  in the ovary. 
B)  in the fallopian tube. 
C)  in the vagina. 
D)  in the uterus. 
E)  right at the cervix.

Question 5

Match the appropriate term with the description.
-Blastocyst

Accepted Answer

A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane 
A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane

Question 6

Match the appropriate term with the description.
-Inner cell mass

Accepted Answer

A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane 
A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane

Question 7

Match the description to the number of chromosomes.
-22

Accepted Answer

A) normal number of chromosomes in humans 
B) number of autosomal chromosomal pairs 
C) number of chromosomes present in an individual with Kleinfelter syndrome 
D) number of chromosomes present in an individual with Turner syndrome 
A) normal number of chromosomes in humans 
B) number of autosomal chromosomal pairs 
C) number of chromosomes present in an individual with Kleinfelter syndrome 
D) number of chromosomes present in an individual with Turner syndrome

Question 8

Which of the following is FALSE?

Accepted Answer

A)  Testes secrete the hormone testosterone. 
B)  Testosterone promotes the development of male reproductive organs. 
C)  Testosterone promotes the development of the ovary. 
D)  Testosterone promotes the development of secondary male sex characteristics. 
E)  The Y chromosome must be present for the secretion of testosterone. 
A)  Testes secrete the hormone testosterone. 
B)  Testosterone promotes the development of male reproductive organs. 
C)  Testosterone promotes the development of the ovary. 
D)  Testosterone promotes the development of secondary male sex characteristics. 
E)  The Y chromosome must be present for the secretion of testosterone.

Question 9

Which of the following properties does a zygote possess?

Accepted Answer

A)  Carries XX, XY, or YY chromosomes. 
B)  Cell division occurs before fertilization. 
C)  Carries 1 pair of sex chromosomes and 22 pairs of autosomal chromosomes. 
D)  Carries an X or Y chromosome and a single set of 22 autosomal chromosomes. 
E)  Undergoes multiple meiotic cell divisions to produce an embryo. 
A)  Carries XX, XY, or YY chromosomes. 
B)  Cell division occurs before fertilization. 
C)  Carries 1 pair of sex chromosomes and 22 pairs of autosomal chromosomes. 
D)  Carries an X or Y chromosome and a single set of 22 autosomal chromosomes. 
E)  Undergoes multiple meiotic cell divisions to produce an embryo.

Question 10

Match the appropriate term with the description.
-Chorion

Accepted Answer

A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane 
A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane

Question 11

During early embryonic development,one of the X chromosomes is randomly inactivated in each cell to form a Barr body,a condensed structure near the nuclear envelope that can be used to identify the sex of the individual and/or the presence of a sex chromosome abnormality.In individuals with abnormal numbers of X chromosomes,all but one of the X chromosomes will be inactivated.What would the number of Barr bodies,sex,and syndrome (if any)be for each of the following situations?

Accepted Answer

The answer of During early embryonic development,one of the X...

Question 12

Whether a fetus develops as a male or female depends on

Accepted Answer

A)  a complex interaction of genes and environment. 
B)  hormones produced by the mother during pregnancy. 
C)  how many sperm enter the egg. 
D)  the number of autosomes present. 
E)  only on which sex chromosomes are present. 
A)  a complex interaction of genes and environment. 
B)  hormones produced by the mother during pregnancy. 
C)  how many sperm enter the egg. 
D)  the number of autosomes present. 
E)  only on which sex chromosomes are present.

Question 13

Match the appropriate term with the description.
-Implantation

Accepted Answer

A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane 
A) finger-like projections 
B) large hollow ball of cells 
C) attachment of embryo to uterus 
D) source of embryonic stem cells 
E) hCG is produced by this membrane

Question 14

Describe the genetic factors required for the development of the male internal and external sex organs.Describe the genetic factors required for the development of the female internal and external sex organs.

Accepted Answer

In males,the pathway begins with the act

Question 15

In countries like China and India,sex selection using ultrasound,amniocentesis,preimplantation genetic diagnosis,and sperm sorting has resulted in an imbalance of male and female offspring in the population.The trend has led to a gradual increase in the number of males born.How would you anticipate this sex selection could influence society in these countries? Do you think the same possibility exists in this country?

Accepted Answer

Answers will vary but should discuss how

Question 16

What is the normal number of chromosomes for a human?

Accepted Answer

A)  44 
B)  42 
C)  40 
D)  46 
E)  45 
A)  44 
B)  42 
C)  40 
D)  46 
E)  45

Question 17

How many Barr bodies would be found in cells from an individual with Turner syndrome?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  The number would vary depending on the age of the individual. 
A)  0 
B)  1 
C)  2 
D)  3 
E)  The number would vary depending on the age of the individual.

Question 18

Which of the following is FALSE about androgen insensitivity?

Accepted Answer

A)  Complete androgen insensitivity is caused by a mutation in a gene on the X chromosome. 
B)  Individuals have a mutation in the androgen receptor gene. 
C)  Development of individuals continues as if testosterone were absent. 
D)  Individuals with this condition have an XX sex chromosome combination. 
E)  Individuals with complete androgen insensitivity have the chromosome combination of a female but appear male. 
A)  Complete androgen insensitivity is caused by a mutation in a gene on the X chromosome. 
B)  Individuals have a mutation in the androgen receptor gene. 
C)  Development of individuals continues as if testosterone were absent. 
D)  Individuals with this condition have an XX sex chromosome combination. 
E)  Individuals with complete androgen insensitivity have the chromosome combination of a female but appear male.

Question 19

What is the normal number of pairs of chromosomes for humans?

Accepted Answer

A)  21 
B)  22 
C)  23 
D)  24 
E)  42 
A)  21 
B)  22 
C)  23 
D)  24 
E)  42

Question 20

Sperm sorting relies on _________________ between sperm carrying the X chromosome and sperm carrying the Y chromosome.

Accepted Answer

A)  differences in electrical charges 
B)  direct microscopic examination and recognition of visual differences 
C)  differences in the swimming speed 
D)  magnetic differences 
E)  differences in the amounts of fluorescent dye binding. 
A)  differences in electrical charges 
B)  direct microscopic examination and recognition of visual differences 
C)  differences in the swimming speed 
D)  magnetic differences 
E)  differences in the amounts of fluorescent dye binding.

Match the following descriptions with the appropriate letter. -fallopian tube

An individual who is (47,XXY)would be phenotypically female.

When can ultrasound be used to determine the sex of a fetus?

In humans,fertilization usually occurs

Match the appropriate term with the description. -Blastocyst

Match the appropriate term with the description. -Inner cell mass

Match the description to the number of chromosomes. -22

Which of the following is FALSE?

Which of the following properties does a zygote possess?

Match the appropriate term with the description. -Chorion

Whether a fetus develops as a male or female depends on

Match the appropriate term with the description. -Implantation

Describe the genetic factors required for the development of the male internal and external sex organs.Describe the genetic factors required for the development of the female internal and external sex organs.

What is the normal number of chromosomes for a human?

How many Barr bodies would be found in cells from an individual with Turner syndrome?

Which of the following is FALSE about androgen insensitivity?

What is the normal number of pairs of chromosomes for humans?

Sperm sorting relies on _________________ between sperm carrying the X chromosome and sperm carrying the Y chromosome.

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Gene Expression and Gene Regulation

Changes in DNA: Mutations and Epigenetics

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 2-DNA and RNA

Biology Basics 3-Genes, Populations, and the Environment

Filters

Exam 1: Sex and Development

Match the following descriptions with the appropriate letter. -fallopian tube

An individual who is (47,XXY)would be phenotypically female.

When can ultrasound be used to determine the sex of a fetus?

In humans,fertilization usually occurs

Match the appropriate term with the description. -Blastocyst

Match the appropriate term with the description. -Inner cell mass

Match the description to the number of chromosomes. -22

Which of the following is FALSE?

Which of the following properties does a zygote possess?

Match the appropriate term with the description. -Chorion

Whether a fetus develops as a male or female depends on

Match the appropriate term with the description. -Implantation

Describe the genetic factors required for the development of the male internal and external sex organs.Describe the genetic factors required for the development of the female internal and external sex organs.

What is the normal number of chromosomes for a human?

How many Barr bodies would be found in cells from an individual with Turner syndrome?

Which of the following is FALSE about androgen insensitivity?

What is the normal number of pairs of chromosomes for humans?

Sperm sorting relies on _________________ between sperm carrying the X chromosome and sperm carrying the Y chromosome.

Assisted Reproductive Technology

Changes in Chromosome Number

How Genes Are Transmitted From Generation to Generation

Gene Expression and Gene Regulation

Changes in DNA: Mutations and Epigenetics

Biotechnology

Genetic Testing and Prenatal Diagnosis

DNA Forensics

Genomics

Inheritance of Complex Traits

Cancer and the Cell Cycle

Behavior

Immunogenetics

Genetics and Populations

Human Evolution

A Different World: The Past, Present, and Future of Human Genetics

Biology Basics 1-Cells and Cell Structure

Biology Basics 2-DNA and RNA

Biology Basics 3-Genes, Populations, and the Environment

Filters