Question 1

A __________ is a display of the chromosomes of a somatic cell during metaphase of mitosis.

Accepted Answer

A)  karyotype
B)  genome
C)  gamete
D)  locusE) A) and D)
F) None of the above

Question 2

The most significant complication of infant prematurity is infant respiratory distress syndrome,which occurs because very young premature infants cannot produce ______________.

Accepted Answer

A)  surfactant
B)  blood
C)  oxygen
D)  erythropoietin
E)  growth hormoneF) All of the above
G) C) and D)

Question 3

Which of the following statements about the syncytiotrophoblast is false?

Accepted Answer

A)  It forms the developing embryo.
B)  It is composed of a non-dividing,multinucleated cell.
C)  It is nonantigenic,so that it triggers no immune response.
D)  It invades the maternal tissues that compose the endometrium of the uterus.
E)  It forms lacunae.F) B) and E)
G) None of the above

Question 4

Atoms or molecules with unpaired electrons that can react with normal cells and cause damage are called ______.

Accepted Answer

A)  free radicals
B)  teratogens
C)  mutagens
D)  antioxidants
E)  vitaminsF) A) and E)
G) A) and D)

Question 5

The first functional kidney is the

Accepted Answer

A)  mesonephros.
B)  pronephros.
C)  allantois.
D)  bulbos cordis.
E)  urorectal septum.F) None of the above
G) A) and D)

Question 6

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 D)
G) B) and E)

Question 7

Which of the following organ systems is derived from all three germ layers?

Accepted Answer

A)  nervous
B)  cardiovascular
C)  endocrine
D)  integumentary
E)  skeletalF) D) and E)
G) B) and E)

Question 8

An APGAR score of _____ is considered normal at 1 to 5 minutes after birth.

Accepted Answer

A)  2
B)  5
C)  9
D)  12
E)  25F) None of the above
G) C) and D)

Question 9

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) A) and E)
G) A) and D)

Question 10

Which of the following will cause contractions of uterine smooth muscle?

Accepted Answer

A)  increasing levels of progesterone
B)  decreasing levels of estrogen
C)  decreasing levels of oxytocin
D)  decreasing uterine stretch
E)  increasing levels of oxytocinF) B) and D)
G) A) and B)

Question 11

The specific location of a gene on a chromosome is its

Accepted Answer

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

Question 12

In females,the genital tubercle becomes the

Accepted Answer

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

Question 13

A clot or plaque which forms on the inside of blood vessel walls is called a(an)

Accepted Answer

A)  sclerosis.
B)  arteriosus.
C)  thrombus.
D)  embolus.
E)  plaque.F) B) and D)
G) C) and D)

Question 14

Increased lipid deposits in the tunica intima of large arteries is called

Accepted Answer

A)  atherosclerosis.
B)  arteriosclerosis.
C)  a thrombus.
D)  an embolus.
E)  hardening of the arteries.F) C) and D)
G) A) and C)

Question 15

When more than one gene pair is involved in an inheritance pattern,it is called

Accepted Answer

A)  structural gene.
B)  autosome.
C)  genotype.
D)  polygenic.
E)  y-linked.F) D) and E)
G) A) and E)

Question 16

Which germ layer is the epidermis derived from?

Accepted Answer

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

Question 17

Somites give rise to

Accepted Answer

A)  nerves.
B)  blood.
C)  glands.
D)  muscles.
E)  spinal cord.F) C) and E)
G) None of the above

Question 18

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

Question 19

Which germ layer is the thyroid derived from?

Accepted Answer

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

Question 20

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 C)
E) B) and C)

Exam 29: Development,growth,aging,and Genetics

Which of the following statements about the syncytiotrophoblast is false?

Correct AnswerverifiedShow Answer

Which of the following is correctly matched?

Correct AnswerverifiedShow Answer

Atoms or molecules with unpaired electrons that can react with normal cells and cause damage are called ______.

Correct AnswerverifiedShow Answer

Which of the following organ systems is derived from all three germ layers?

Correct AnswerverifiedShow Answer

Neonate is the term used to refer to a baby

Correct AnswerverifiedShow Answer

The placenta and membranes surrounding the embryo develop from the

Correct AnswerverifiedShow Answer

Which germ layer is the epidermis derived from?

Correct AnswerverifiedShow Answer

Somites give rise to

Correct AnswerverifiedShow Answer

An APGAR score of _____ is considered normal at 1 to 5 minutes after birth.

Correct AnswerverifiedShow Answer

The specific location of a gene on a chromosome is its

Correct AnswerverifiedShow Answer

A __________ is a display of the chromosomes of a somatic cell during metaphase of mitosis.

Correct AnswerverifiedShow Answer

A clot or plaque which forms on the inside of blood vessel walls is called a(an)

Correct AnswerverifiedShow Answer

The most significant complication of infant prematurity is infant respiratory distress syndrome,which occurs because very young premature infants cannot produce ______________.

Correct AnswerverifiedShow Answer

In females,the genital tubercle becomes the

Correct AnswerverifiedShow Answer

Which of the following will cause contractions of uterine smooth muscle?

Correct AnswerverifiedShow Answer

The period from conception until birth is

Correct AnswerverifiedShow Answer

When more than one gene pair is involved in an inheritance pattern,it is called

Correct AnswerverifiedShow Answer

Which germ layer is the thyroid derived from?

Correct AnswerverifiedShow Answer

The first functional kidney is the

Correct AnswerverifiedShow Answer

Increased lipid deposits in the tunica intima of large arteries is called

Correct AnswerverifiedShow Answer

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