Question 1

Which of the following is the gene expression seen in sickle-cell disease?

Accepted Answer

A)   Dominance
B)   Incomplete dominance
C)   Homozygous recessive
D)   CodominanceE) B) and C)
F) A) and D)

Question 2

The foramen ovale is an opening that allows fetal blood to pass from the

Accepted Answer

A)   right atrium to the left atrium.
B)   left atrium to the right atrium.
C)   right ventricle to the left ventricle.
D)   left ventricle to the right ventricle.
E)   fetal liver to the inferior vena cava.F) All of the above
G) B) and E)

Question 3

Match the time period with the correct postnatal term.
1. Birth to 1 month after
2. 1 month to 2 years of age
3. 2 years of age to puberty
4. Puberty to 20 years of age
5. 20 years of age to death

Accepted Answer

Neonatal period
Inf...

Question 4

Which of the following is derived from the neural crest cells?

Accepted Answer

A)   Spinal cord
B)   Brain
C)   Peripheral nervous system
D)   All of these are correctE) A) and B)
F) B) and C) C

Question 5

Which of the following would NOT provide evidence for a genetic basis for aging?

Accepted Answer

A)   Children of short-lived parents live shorter lives than children of long-lived parents.
B)   Cells only divide for a set number of divisions.
C)   Cell lines become nonfunctional before their maximum number of divisions is reached.
D)   Smoking and excessive alcohol intake are linked to shorter life spans.
E)   Certain genes that code for antioxidant enzymes to detoxify free radicals are present in animals that live longer. Since smoking and alcohol consumption are not genetic factors they would not provide a genetic basis for aging. They can, however, act to increase the affects of aging.F) D) and E)
G) B) and E)

Question 6

Which of the following is responsible for milk release or milk letdown after birth?

Accepted Answer

A)   Progesterone
B)   Prolactin
C)   Oxytocin
D)   None of these are correctE) None of the above
F) All of the above

Question 7

Newborns lose between 5 - 10% of their body weight during the first few days of life.

Accepted Answer

A) True 
 B)False

Question 8

It is estimated that the newborn's central nervous system contains the adult number of neurons, but subsequent brain growth and maturation add new neuroglia.

Accepted Answer

A) True 
 B)False

Question 9

Neonate is the term used to refer to a baby

Accepted Answer

A)   in the 24-48 hours preceding birth.
B)   in the 24-48 hours after birth.
C)   during the first month after birth.
D)   during the six months after birth.
E)   during the first year after birth.F) C) and E)
G) All of the above

Question 10

What structure forms the lower jaw?

Accepted Answer

A)   mesonephros
B)   mandibular processes
C)   neural tube
D)   secondary palate
E)   somitesF) A) and B)
G) A) and D)

Question 11

Death is defined as the loss of heartbeat and respiration.

Accepted Answer

A) True 
 B)False  False

Question 12

Which of the following is correctly matched?

Accepted Answer

A)   first stage of labor - baby exits vagina
B)   second stage of labor - ends with cervix dilation to maximum
C)   third stage of labor - placenta expelled from uterusD) A) and B)
E) None of the above

Question 13

What is(are)  the hormone(s)  that the chorion secretes which maintain(s)  the endometrium of the uterus?

Accepted Answer

A)   LH
B)   Human chorionic gonadotropin
C)   Progesterone and estrogen
D)   OxytocinE) A) and B)
F) C) and D)

Question 14

The onset of puberty is considered to be the beginning of which life stage?

Accepted Answer

A)   early childhood
B)   late childhood
C)   adolescence
D)   young adult
E)   middle ageF) B) and E)
G) B) and D)

Question 15

Which of the following is derived from the endoderm?

Accepted Answer

A)   Brain
B)   Urinary bladder
C)   Dermis of skin
D)   MusclesE) B) and C)
F) None of the above

Question 16

Many genes occur in alternative forms called alleles.

Accepted Answer

A) True 
 B)False  True

Question 17

One component of brain death is defined as

Accepted Answer

A)   loss of reflexes.
B)   lack of spontaneous movement.
C)   a flat electroencephalogram (EEG) .D) None of the above
E) B) and C)

Question 18

Which of the following structures attaches to the uterine wall and begins the process of implantation?

Accepted Answer

A)   Blastocyst
B)   Morula
C)   Gastrocyst
D)   ZygoteE) A) and D)
F) B) and C)

Question 19

Which of the following is the correct order of structures that the sperm must penetrate to fertilize the secondary oocyte?

Accepted Answer

A)   Corona radiata, oocyte plasma membrane and zona pellucida
B)   Zona pellucida, corona radiata and oocyte plasma membrane
C)   Corona radiata, zona pellucida and oocyte plasma membrane
D)   Oocyte plasma membrane, zona radiata and corona pellucidaE) C) and D)
F) A) and B)

Question 20

The prenatal period during which the major organ systems form is the

Accepted Answer

A)   fetal period.
B)   germinal period.
C)   embryonic period.
D)   neonatal period.E) B) and C)
F) None of the above

Exam 20: Development, Heredity, and Aging

Which of the following is the gene expression seen in sickle-cell disease?

Correct AnswerverifiedShow Answer

The foramen ovale is an opening that allows fetal blood to pass from the

Correct AnswerverifiedShow Answer

Match the time period with the correct postnatal term. 1. Birth to 1 month after 2. 1 month to 2 years of age 3. 2 years of age to puberty 4. Puberty to 20 years of age 5. 20 years of age to death

Correct AnswerverifiedNeonatal period Inf...View AnswerShow Answer

Which of the following is derived from the neural crest cells?

Correct AnswerverifiedC

Which of the following would NOT provide evidence for a genetic basis for aging?

Correct AnswerverifiedShow Answer

Which of the following is responsible for milk release or milk letdown after birth?

Correct AnswerverifiedShow Answer

Newborns lose between 5 - 10% of their body weight during the first few days of life.

Correct AnswerverifiedShow Answer

It is estimated that the newborn's central nervous system contains the adult number of neurons, but subsequent brain growth and maturation add new neuroglia.

Correct AnswerverifiedShow Answer

Neonate is the term used to refer to a baby

Correct AnswerverifiedShow Answer

What structure forms the lower jaw?

Correct AnswerverifiedShow Answer

Death is defined as the loss of heartbeat and respiration.

Correct AnswerverifiedFalse

Which of the following is correctly matched?

Correct AnswerverifiedShow Answer

What is(are) the hormone(s) that the chorion secretes which maintain(s) the endometrium of the uterus?

Correct AnswerverifiedShow Answer

The onset of puberty is considered to be the beginning of which life stage?

Correct AnswerverifiedShow Answer

Which of the following is derived from the endoderm?

Correct AnswerverifiedShow Answer

Many genes occur in alternative forms called alleles.

Correct AnswerverifiedTrue

One component of brain death is defined as

Correct AnswerverifiedShow Answer

Which of the following structures attaches to the uterine wall and begins the process of implantation?

Correct AnswerverifiedShow Answer

Which of the following is the correct order of structures that the sperm must penetrate to fertilize the secondary oocyte?

Correct AnswerverifiedShow Answer

The prenatal period during which the major organ systems form is the

Correct AnswerverifiedShow Answer

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Neonatal period
Inf...
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C

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False

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True

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