Question 1

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

Accepted Answer

A

Question 2

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 3

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 membraneF) C) and D)
G) B) and D)

Question 4

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 trimesterF) B) and D)
G) B) and E) D

Question 5

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 syndromeE) A) and B)
F) A) and C)

Question 6

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

Accepted Answer

A)   21
B)   22
C)   23
D)   24
E)   42F) A) and E)
G) A) and D)

Question 7

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.F) None of the above
G) A) and D)

Question 8

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 membraneF) All of the above
G) B) and C)

Question 9

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 membraneF) All of the above
G) A) and E)

Question 10

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.F) B) and C)
G) C) and D)

Question 11

What is the normal number of chromosomes for a human?

Accepted Answer

A)   44
B)   42
C)   40
D)   46
E)   45F) A) and C)
G) A) and B)

Question 12

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 membraneF) A) and B)
G) B) and E)

Question 13

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 14

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.F) C) and D)
G) B) and C)

Question 15

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.F) A) and E)
G) B) and D)

Question 16

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.F) C) and E)
G) A) and E)

Question 17

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

Accepted Answer

A) True 
 B)False  False

Question 18

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.F) A) and E)
G) All of the above

Question 19

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.F) D) and E)
G) A) and D)

Question 20

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...

Exam 1: Sex and Development

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

Correct Answer
verified
A

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.

Correct Answer
verified
In males,the pathway begins with the act...
View Answer

Match the appropriate term with the description. -Blastocyst

Correct Answer
verified

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

Correct Answer
verified
D

Match the description to the number of chromosomes. -22

Correct Answer
verified

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

Correct Answer
verified

In humans,fertilization usually occurs

Correct Answer
verified

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

Correct Answer
verified

Match the appropriate term with the description. -Chorion

Correct Answer
verified

Which of the following is FALSE?

Correct Answer
verified

What is the normal number of chromosomes for a human?

Correct Answer
verified

Match the appropriate term with the description. -Implantation

Correct Answer
verified

Correct Answer
verified
Answers will vary but should discuss how...
View Answer

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

Correct Answer
verified

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

Correct Answer
verified

Whether a fetus develops as a male or female depends on

Correct Answer
verified

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

Correct Answer
verified
False

Which of the following properties does a zygote possess?

Correct Answer
verified

Which of the following is FALSE about androgen insensitivity?

Correct Answer
verified

Correct Answer
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Exam 1: Sex and Development

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

Correct AnswerverifiedA

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.

Correct AnswerverifiedIn males,the pathway begins with the act...View AnswerShow Answer

Match the appropriate term with the description. -Blastocyst

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

Match the description to the number of chromosomes. -22

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In humans,fertilization usually occurs

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Match the appropriate term with the description. -Chorion

Correct AnswerverifiedShow Answer

Which of the following is FALSE?

Correct AnswerverifiedShow Answer

What is the normal number of chromosomes for a human?

Correct AnswerverifiedShow Answer

Match the appropriate term with the description. -Implantation

Correct AnswerverifiedShow Answer

Correct AnswerverifiedAnswers will vary but should discuss how...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Whether a fetus develops as a male or female depends on

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedFalse

Which of the following properties does a zygote possess?

Correct AnswerverifiedShow Answer

Which of the following is FALSE about androgen insensitivity?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
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A

Correct Answer
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In males,the pathway begins with the act...
View Answer

Correct Answer
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Correct Answer
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D

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Answers will vary but should discuss how...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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False

Correct Answer
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Correct Answer
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Correct Answer
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