Question 1

If neither testosterone nor mullerian-inhibiting hormone is secreted during embryonic development,

Accepted Answer

A)   the paramesonephric duct system degenerates.
B)   the mesonephric duct system is stimulated.
C)   internally female reproductive structures form.
D)   the individual appears as a male.
E)   internally male reproductive structures form.F) A) and B)
G) A) and E)

Question 2

Which germ layer is the system responsible for moving substances around the body derived from?

Accepted Answer

A)   Ectoderm
B)   Mesoderm
C)   EndodermD) B) and C)
E) A) and C)

Question 3

The chorionic villi

Accepted Answer

A)   form from branches of the syncytiotrophoblast cords.
B)   increase surface area of the amniotic cavity.
C)   contribute to the formation of the placenta.
D)   are necessary for implantation to occur.
E)   are not part of the placental formation.F) A) and C)
G) A) and D)

Question 4

Which of the following is NOT a change associated with aging?

Accepted Answer

A)   Loss of neurons
B)   Loss of skeletal and cardiac muscle tissue
C)   Decreased cross-linking of collagen
D)   Decreased ability of the lens in the eye to accommodate
E)   ArteriosclerosisF) All of the above
G) A) and B)

Question 5

During birth, an infant is normally stimulated to breathe by ________.

Accepted Answer

A)   CO2 accumulating in the baby's blood
B)   an increased O2 level in the baby's new environment
C)   prostaglandins
D)   surfactant
E)   being spanked by the doctorF) A) and E)
G) A) and D)

Question 6

________ is an example of a recessive genetic disease that affects the formation of normal hemoglobin molecules.

Accepted Answer

A)   Albinism
B)   Sickle cell disease
C)   Hemophilia
D)   Down syndrome
E)   AchondroplasiaF) C) and D)
G) A) and B)

Question 7

If a woman ovulates two oocytes and both are fertilized,

Accepted Answer

A)   identical twins result.
B)   fraternal twins result.
C)   conjoined twins result.
D)   monozygotic twinning occurs.
E)   paternal twins result.F) B) and D)
G) B) and E)

Question 8

If an albino (aa)  mates with a person homozygous for normal pigment (AA) ,

Accepted Answer

A)   there is a 50% probability that the child will have normal pigmentation.
B)   there is a 50% probability that the child will have albinism.
C)   there is a 100% probability that the child will have normal pigmentation.
D)   there is a 100% probability that the child will have albinism.E) A) and D)
F) B) and D)

Question 9

Fusion of the male and female pronuclei forms the ________.

Accepted Answer

A)   blastocyst
B)   morula
C)   zygote
D)   gastrula
E)   trophoblastF) A) and B)
G) C) and E)

Question 10

An infant who has just started cooing and gurgling in response to smiles and attention from its parents is about ________ months old.

Accepted Answer

A)   two
B)   four
C)   six
D)   eight
E)   tenF) B) and C)
G) A) and D)

Question 11

Which structure develops from an evagination of the ectoderm in the roof of the embryonic oral cavity?

Accepted Answer

A)   Anterior pituitary
B)   Posterior pituitary
C)   Thyroid gland
D)   Adrenal glands
E)   PancreasF) C) and D)
G) A) and E)

Question 12

The waxy coat of sloughed epithelial cells that covers the fetus is called ________.

Accepted Answer

A)   lanugo
B)   fetal hair
C)   colostrum
D)   vernix caseosa
E)   primary hairF) A) and E)
G) A) and D)

Question 13

Where does implantation normally occur?

Accepted Answer

A)   In the fundus area of the uterus
B)   In the isthmus area of the uterine tube
C)   In the cervix area of the uterus
D)   In the infundibulum area of the uterine tubeE) C) and D)
F) B) and C)

Question 14

The process of forming three germ layers from the embryonic disk is called ________.

Accepted Answer

A)   gastrulation
B)   differentiation
C)   fertilization
D)   meiosis
E)   implantationF) A) and B)
G) A) and E)

Question 15

The hormone responsible for milk production is ________.

Accepted Answer

A)   estrogen
B)   progesterone
C)   oxytocin
D)   prolactin
E)   FSHF) All of the above
G) B) and E)

Question 16

Regarding fertilization, which of the following events happens first?

Accepted Answer

A)   The fast block to polyspermy
B)   The slow block to polyspermy
C)   The cortical reaction
D)   The acrosomal reactionE) C) and D)
F) All of the above

Question 17

Urine retention is a greater problem for elderly men than for elderly women because men

Accepted Answer

A)   can develop benign prostatic hyperplasia.
B)   have larger bladders.
C)   have weaker urinary sphincters.
D)   have narrower ureters.
E)   have fewer glomeruli.F) B) and D)
G) A) and E)

Exam 29: Development, Growth, Aging, and Genetics

The chorionic villi

Correct Answer
verified

Urine retention is a greater problem for elderly men than for elderly women because men

Correct Answer
verified

An infant who has just started cooing and gurgling in response to smiles and attention from its parents is about ________ months old.

Correct Answer
verified

Regarding fertilization, which of the following events happens first?

Correct Answer
verified

The hormone responsible for milk production is ________.

Correct Answer
verified

Which structure develops from an evagination of the ectoderm in the roof of the embryonic oral cavity?

Correct Answer
verified

If a woman ovulates two oocytes and both are fertilized,

Correct Answer
verified

Which of the following is NOT a change associated with aging?

Correct Answer
verified

During birth, an infant is normally stimulated to breathe by ________.

Correct Answer
verified

________ is an example of a recessive genetic disease that affects the formation of normal hemoglobin molecules.

Correct Answer
verified

If neither testosterone nor mullerian-inhibiting hormone is secreted during embryonic development,

Correct Answer
verified

The waxy coat of sloughed epithelial cells that covers the fetus is called ________.

Correct Answer
verified

Which germ layer is the system responsible for moving substances around the body derived from?

Correct Answer
verified

Where does implantation normally occur?

Correct Answer
verified

If an albino (aa) mates with a person homozygous for normal pigment (AA) ,

Correct Answer
verified

The process of forming three germ layers from the embryonic disk is called ________.

Correct Answer
verified

Fusion of the male and female pronuclei forms the ________.

Correct Answer
verified

Exam 29: Development, Growth, Aging, and Genetics

The chorionic villi

Correct AnswerverifiedShow Answer

Urine retention is a greater problem for elderly men than for elderly women because men

Correct AnswerverifiedShow Answer

An infant who has just started cooing and gurgling in response to smiles and attention from its parents is about ________ months old.

Correct AnswerverifiedShow Answer

Regarding fertilization, which of the following events happens first?

Correct AnswerverifiedShow Answer

The hormone responsible for milk production is ________.

Correct AnswerverifiedShow Answer

Which structure develops from an evagination of the ectoderm in the roof of the embryonic oral cavity?

Correct AnswerverifiedShow Answer

If a woman ovulates two oocytes and both are fertilized,

Correct AnswerverifiedShow Answer

Which of the following is NOT a change associated with aging?

Correct AnswerverifiedShow Answer

During birth, an infant is normally stimulated to breathe by ________.

Correct AnswerverifiedShow Answer

________ is an example of a recessive genetic disease that affects the formation of normal hemoglobin molecules.

Correct AnswerverifiedShow Answer

If neither testosterone nor mullerian-inhibiting hormone is secreted during embryonic development,

Correct AnswerverifiedShow Answer

The waxy coat of sloughed epithelial cells that covers the fetus is called ________.

Correct AnswerverifiedShow Answer

Which germ layer is the system responsible for moving substances around the body derived from?

Correct AnswerverifiedShow Answer

Where does implantation normally occur?

Correct AnswerverifiedShow Answer

If an albino (aa) mates with a person homozygous for normal pigment (AA) ,

Correct AnswerverifiedShow Answer

The process of forming three germ layers from the embryonic disk is called ________.

Correct AnswerverifiedShow Answer

Fusion of the male and female pronuclei forms the ________.

Correct AnswerverifiedShow Answer

Correct Answer
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