Question 1

The closed foramen ovale becomes the _____ after birth.

Accepted Answer

A)   fossa ovalis
B)   ligamentum ovale
C)   ligamentum venosum
D)   ligamentum arteriosum
E)   valvesF) C) and D)
G) None of the above

Question 2

What type of gene expression are the ABO blood types an example of?

Accepted Answer

A)   complete dominance
B)   codominance
C)   incomplete dominance
D)   recessiveness
E)   polymorphismF) B) and E)
G) B) and C)

Question 3

Fine, soft hair that covers the fetus is called

Accepted Answer

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

Question 4

Which of the following conditions might result in stress on a fetus that has nearly completed 9 months of fetal development?

Accepted Answer

A)   placental growth greater than fetal growth
B)   cramped quarters in the uterus
C)   increased O2 supply to the fetus
D)   excessive weight gain by the mother
E)   hormone fluctuationsF) B) and D)
G) D) and E)

Question 5

Before parturition,

Accepted Answer

A)   the placenta secretes increased amounts of oxytocin.
B)   the uterus stretches, causing the release of ACTH from the adenohypophysis.
C)   there is an increase in the stimulatory effects of progesterone on the uterine muscle.
D)   prostaglandin synthesis is inhibited.
E)   fetal glucocorticoids decrease the production of progesterone by the placenta.F) B) and D)
G) A) and B)

Question 6

An infant born with a gestational age of 254 days would be considered

Accepted Answer

A)   premature.
B)   normal maturity.
C)   postmature.
D)   immature.
E)   None of these choices is correct.F) A) and E)
G) A) and D)

Question 7

Which of the following genotypes will result in a male?

Accepted Answer

A)   XO
B)   XY
C)   XX
D)   XXX
E)   YYF) A) and B)
G) B) and E)

Question 8

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 D)
G) B) and C)

Question 9

Somites give rise to

Accepted Answer

A)   nerves.
B)   blood.
C)   glands.
D)   muscles.
E)   spinal cord.F) All of the above
G) A) and C)

Question 10

-The picture shows a full term pregnancy. What does "D" represent?

Accepted Answer

A)   placenta
B)   umbilical cord
C)   urinary bladder
D)   mucus plug in cervical canal
E)   vaginaF) A) and B)
G) B) and C)

Question 11

Which of the following fetal shunts bypasses the fetal lungs?

Accepted Answer

A)   ductus arteriosus
B)   ductus venosus
C)   umbilical arteries
D)   umbilical vein
E)   ductus byosusF) B) and D)
G) B) and E)

Question 12

The central cavity of the neural tube becomes the

Accepted Answer

A)   cerebrum.
B)   mid-brain.
C)   cranial cavity.
D)   ventricles of the brain.
E)   epidural space.F) C) and E)
G) B) and C)

Question 13

Which of the following is involved in stimulating milk letdown?

Accepted Answer

A)   increased estrogen levels
B)   increased progesterone levels
C)   mechanical stimulation of the breasts that cause release of oxytocin
D)   secretion of a small amount of milk
E)   None of these choices is correctF) B) and D)
G) D) and E)

Question 14

Which germ layer is the brain and spinal cord derived from?

Accepted Answer

A)   ectoderm
B)   mesoderm
C)   endodermD) A) and B)
E) All of the above

Question 15

The specific location of a gene on a chromosome is its

Accepted Answer

A)   homolog.
B)   genotype.
C)   phenotype.
D)   allele.
E)   locus.F) B) and E)
G) A) and C)

Question 16

In females, the genital tubercle becomes the

Accepted Answer

A)   uterus.
B)   ovary.
C)   clitoris.
D)   vagina.
E)   labia.F) C) and E)
G) C) and D)

Question 17

Which germ layer is most muscle derived from?

Accepted Answer

A)   ectoderm
B)   mesoderm
C)   endodermD) None of the above
E) All of the above

Question 18

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) All of the above
G) A) and D)

Question 19

Once the embryonic mass has 12 or more cells, it is called a

Accepted Answer

A)   morula.
B)   gastrula.
C)   blastula.
D)   blastocyst.
E)   trophoblast.F) B) and E)
G) B) and D)

Question 20

Which of the following is formed from mesoderm?

Accepted Answer

A)   autonomic neurons
B)   dermis of the skin
C)   adrenal medulla
D)   teeth
E)   tonsilsF) A) and D)
G) B) and C)

Exam 29: Development, Growth, Aging, and Genetics

-The picture shows a full term pregnancy. What does "D" represent?

Correct AnswerverifiedShow Answer

Which of the following genotypes will result in a male?

Correct AnswerverifiedShow Answer

In females, the genital tubercle becomes the

Correct AnswerverifiedShow Answer

Once the embryonic mass has 12 or more cells, it is called a

Correct AnswerverifiedShow Answer

Which germ layer is the brain and spinal cord derived from?

Correct AnswerverifiedShow Answer

The central cavity of the neural tube becomes the

Correct AnswerverifiedShow Answer

Which of the following is involved in stimulating milk letdown?

Correct AnswerverifiedShow Answer

What type of gene expression are the ABO blood types an example of?

Correct AnswerverifiedShow Answer

Which of the following fetal shunts bypasses the fetal lungs?

Correct AnswerverifiedShow Answer

Somites give rise to

Correct AnswerverifiedShow Answer

Neonate is the term used to refer to a baby

Correct AnswerverifiedShow Answer

Before parturition,

Correct AnswerverifiedShow Answer

An infant born with a gestational age of 254 days would be considered

Correct AnswerverifiedShow Answer

Fine, soft hair that covers the fetus is called

Correct AnswerverifiedShow Answer

Which of the following is formed from mesoderm?

Correct AnswerverifiedShow Answer

Which of the following conditions might result in stress on a fetus that has nearly completed 9 months of fetal development?

Correct AnswerverifiedShow Answer

Which germ layer is most muscle derived from?

Correct AnswerverifiedShow Answer

The closed foramen ovale becomes the _____ after birth.

Correct AnswerverifiedShow Answer

The specific location of a gene on a chromosome is its

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

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