Question 1

Which gland is derived from both neural crest cells and mesoderm?

Accepted Answer

A)   anterior pituitary gland
B)   posterior pituitary gland
C)   thyroid gland
D)   adrenal glands
E)   pancreasF) A) and E)
G) A) and B)

Question 2

An embryonic cell that has the potential to develop into a wide range of tissues is called a/an

Accepted Answer

A)   differentiated cell.
B)   multipotent cell.
C)   pluripotent cell.
D)   omnipotent cell.
E)   totipotent cell.F) A) and C)
G) All of the above

Question 3

A cleft lip results when

Accepted Answer

A)   the two halves of the secondary palate do not fuse.
B)   the frontonasal and maxillary processes do not fuse.
C)   the lateral edges of the nasal placodes do not fuse with the maxillary processes.
D)   the maxillary processes do not fuse with the mandibular processes.
E)   None of these choices is correct.F) None of the above
G) C) and E)

Question 4

As parturition nears, the levels of progesterone ______ and the levels of estrogen ______.

Accepted Answer

A)   decrease; increase
B)   increase; decrease
C)   decrease; decrease
D)   increase; increaseE) B) and C)
F) A) and D)

Question 5

The period from conception until birth is

Accepted Answer

A)   the prenatal period.
B)   the germinal period.
C)   the embryonic period.
D)   the fetal period.
E)   the conceptual period.F) D) and E)
G) All of the above

Question 6

Fusion of the male and female pronuclei forms the

Accepted Answer

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

Question 7

In females, the genital tubercle becomes the

Accepted Answer

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

Question 8

The opening that connects the right and left atria in the fetal heart is the

Accepted Answer

A)   interatrial septum.
B)   septum primum.
C)   septum secundum.
D)   foramen ovale.
E)   foramen rotundum.F) B) and C)
G) All of the above

Question 9

Which germ layer is the cardiovascular system derived from?

Accepted Answer

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

Question 10

If the secondary palate does not fuse the result is a

Accepted Answer

A)   cleft palate.
B)   cleft throat.
C)   facial cleft.
D)   cleft lip.
E)   cleft tongue.F) A) and C)
G) D) and E)

Question 11

Which germ layer is the urinary bladder derived from?

Accepted Answer

A)   ectoderm
B)   mesoderm
C)   endodermD) A) and C)
E) B) and C)

Question 12

Which of the following chromosome anomalies can be found in either sex?

Accepted Answer

A)   Turner's Syndrome (XO) 
B)   Klinefelter's Syndrome (XXY) 
C)   Down Syndrome (Trisomy 21) 
D)   Barker's Syndrome
E)   They all can be found in either sex.F) B) and D)
G) C) and D)

Question 13

Developmental events are calculated from

Accepted Answer

A)   ovulation.
B)   conception.
C)   the last menstrual period.
D)   fourteen days after the last menstrual period.
E)   fourteen days before the last menstrual period.F) D) and E)
G) A) and E)

Question 14

Chromosomes that are NOT associated with sex determination are known as

Accepted Answer

A)   structural genes.
B)   autosomes.
C)   genotypes.
D)   polygenic.
E)   y-linked.F) A) and D)
G) A) and E)

Question 15

The placenta and membranes surrounding the embryo develop from the

Accepted Answer

A)   morula.
B)   blastocyst.
C)   trophoblast.
D)   inner cell mass.
E)   blastocele.F) B) and E)
G) A) and D)

Question 16

What term means that both alleles are different?

Accepted Answer

A)   locus
B)   alleles
C)   homozygous
D)   heterozygous
E)   karyotypeF) A) and D)
G) A) and B)

Question 17

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 E)
G) None of the above

Question 18

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

Accepted Answer

A)   anterior pituitary gland
B)   posterior pituitary gland
C)   thyroid gland
D)   adrenal glands
E)   pancreasF) A) and B)
G) A) and C)

Question 19

If a woman ovulates two oocytes and both are fertilized,

Accepted Answer

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

Question 20

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

Exam 29: Development, Growth, Aging, and Genetics

If the secondary palate does not fuse the result is a

Correct AnswerverifiedShow Answer

Which gland is derived from both neural crest cells and mesoderm?

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A cleft lip results when

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Which of the following chromosome anomalies can be found in either sex?

Correct AnswerverifiedShow Answer

Chromosomes that are NOT associated with sex determination are known as

Correct AnswerverifiedShow Answer

What term means that both alleles are different?

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In females, the genital tubercle becomes the

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The placenta and membranes surrounding the embryo develop from the

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Which germ layer is the urinary bladder derived from?

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

Correct AnswerverifiedShow Answer

Developmental events are calculated from

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The opening that connects the right and left atria in the fetal heart is the

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

The period from conception until birth is

Correct AnswerverifiedShow Answer

As parturition nears, the levels of progesterone ______ and the levels of estrogen ______.

Correct AnswerverifiedShow Answer

If a woman ovulates two oocytes and both are fertilized,

Correct AnswerverifiedShow Answer

Fusion of the male and female pronuclei forms the

Correct AnswerverifiedShow Answer

Which germ layer is the cardiovascular system derived from?

Correct AnswerverifiedShow Answer

An embryonic cell that has the potential to develop into a wide range of tissues is called a/an

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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As parturition nears, the levels of progesterone and the levels of estrogen .

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