Question 1

A fetus's exposure to ____ is the leading preventable cause of birth defects.

Accepted Answer

A)  alcohol 
B)  X-rays 
C)  viruses 
D)  thalidomide 
E)  Toxoplasma gondii

Question 2

Teratogens affect the ____ more than any other part of the fetal body.

Accepted Answer

A)  central nervous system 
B)  upper limbs 
C)  heart 
D)  lower limbs 
E)  external genitalia

Question 3

The duct between a testis and a seminal vesicle used for the transport of sperm is the ____________________.

Accepted Answer

The answer of The duct between a testis and a...

Question 4

Seminal vesicles secrete fructose and ____ into the semen

Accepted Answer

A)  DHT 
B)  oxytocin 
C)  testosterone 
D)  estrogen 
E)  prostaglandins

Question 5

Children born with ____________________ have genital structures that are neither fully male nor fully female.

Accepted Answer

The answer of Children born with ____________________ have genital structures...

Question 6

Chromosomal sex of a fetus with the sex chromosomes XXY is almost always ____________________.

Accepted Answer

The answer of Chromosomal sex of a fetus with the...

Question 7

Bruce Reimer was born with ambiguous genitalia.

Accepted Answer

A) True 
 B)False

Question 8

A Barr body is a(n)____.

Accepted Answer

A)  activated X chromosome 
B)  inactivated X chromosome 
C)  immature trophoblast 
D)  immature blastocyst 
E)  mature blastocyst

Question 9

Most of the protein eaten by the mother during the third trimester of pregnancy is used for fetal brain and ____________________ system growth and development.

Accepted Answer

The answer of Most of the protein eaten by the...

Question 10

Figure
 
-The accompanying figure illustrates the process of human development from fertilization to implantation.Describe what happens from day 1 through days 6-7 of this process.

Accepted Answer

The answer of Figure
 
-The accompanying figure illustrates the process...

Question 11

The inheritance of sex-influenced traits can be dominant in one sex but recessive in the other.

Accepted Answer

A) True 
 B)False

Question 12

The health effects of X-rays on a fetus depend on the amount of ____________________ and the ____________________ of the fetus.

Accepted Answer

The answer of The health effects of X-rays on a...

Question 13

Sperm mature and are stored in the epididymis.

Accepted Answer

A) True 
 B)False

Question 14

In 2012,the International Olympic Committee began using tests that measure the levels and the body's response to the male hormone ____________________ as a means of distinguishing females from males when sex was questionable.

Accepted Answer

The answer of In 2012,the International Olympic Committee began using...

Question 15

X inactivation can lead to ____________________ in females who are heterozygous for X-linked genes.

Accepted Answer

The answer of X inactivation can lead to ____________________ in...

Question 16

In humans,body size,muscle mass,and patterns of fat distribution are types of ____ sex characteristics.

Accepted Answer

A)  primary 
B)  secondary 
C)  tertiary 
D)  initial 
E)  mutable

Question 17

Sex-influenced traits are expressed ____.

Accepted Answer

A)  aftafter the formation of a Barr body 
B)  more in males than in females 
C)  as a result of hormone differences between males and females 
D)  only in males 
E)  only in females

Question 18

The pathway from ____ sex to ____ sex can be disrupted at several stages.

Accepted Answer

A)  chromosomal; phenotypic 
B)  phenotypic; chromosomal 
C)  gonadal; chromosomal 
D)  gonadal; genotypic 
E)  phenotypic; gonadal

Question 19

At term,____________________ changes initiate and drive the events surrounding birth.

Accepted Answer

The answer of At term,____________________ changes initiate and drive the...

Question 20

Pattern baldness is a(n)____ trait.

Accepted Answer

A)  X-linked 
B)  Y-linked 
C)  sex-linked 
D)  sex-limited 
E)  sex-influenced

Exam 7: Development and Sex Determination

A fetus's exposure to ____ is the leading preventable cause of birth defects.

Teratogens affect the ____ more than any other part of the fetal body.

The duct between a testis and a seminal vesicle used for the transport of sperm is the ____________________.

Seminal vesicles secrete fructose and ____ into the semen

Children born with ____________________ have genital structures that are neither fully male nor fully female.

Chromosomal sex of a fetus with the sex chromosomes XXY is almost always ____________________.

Bruce Reimer was born with ambiguous genitalia.

A Barr body is a(n) ____.

Most of the protein eaten by the mother during the third trimester of pregnancy is used for fetal brain and ____________________ system growth and development.

Figure -The accompanying figure illustrates the process of human development from fertilization to implantation.Describe what happens from day 1 through days 6-7 of this process.

The inheritance of sex-influenced traits can be dominant in one sex but recessive in the other.

The health effects of X-rays on a fetus depend on the amount of and the of the fetus.

Sperm mature and are stored in the epididymis.

In 2012,the International Olympic Committee began using tests that measure the levels and the body's response to the male hormone ____________________ as a means of distinguishing females from males when sex was questionable.

X inactivation can lead to ____________________ in females who are heterozygous for X-linked genes.

In humans,body size,muscle mass,and patterns of fat distribution are types of ____ sex characteristics.

Sex-influenced traits are expressed ____.

The pathway from sex to sex can be disrupted at several stages.

At term,____________________ changes initiate and drive the events surrounding birth.

Pattern baldness is a(n) ____ trait.