Question 1

The major organ systems develop during the germinal prenatal period.

Accepted Answer

A) True 
 B)False

Question 2

In some neonates the foramen ovale does not close to form the fossa ovalis. This would be called a(n) _____.

Accepted Answer

A)  mutation 
B)  congenital disorder 
C)  teratogen 
D)  genetic anomaly 
A)  mutation 
B)  congenital disorder 
C)  teratogen 
D)  genetic anomaly

Question 3

What genetic disorder is caused by having three chromosomes 21?

Accepted Answer

A)  albinism 
B)  sickle-cell disease 
C)  hemophilia 
D)  Down syndrome 
E)  achondroplasia 
A)  albinism 
B)  sickle-cell disease 
C)  hemophilia 
D)  Down syndrome 
E)  achondroplasia

Question 4

Which of the following is derived from ectoderm?

Accepted Answer

A)  lens of the eye 
B)  thymus gland 
C)  tonsils 
D)  urinary bladder 
E)  dermis of skin 
A)  lens of the eye 
B)  thymus gland 
C)  tonsils 
D)  urinary bladder 
E)  dermis of skin

Question 5

Which germ layer is the epidermis derived from?

Accepted Answer

A)  ectoderm 
B)  mesoderm 
C)  endoderm 
A)  ectoderm 
B)  mesoderm 
C)  endoderm

Question 6

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 correct 
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 correct

Question 7

A non-albino female who is a carrier for the albino allele (Aa), mates with an albino (aa) male. What is the probability that their children will be albino?

Accepted Answer

A)  0% 
B)  25% 
C)  50% 
D)  75% 
E)  100% 
A)  0% 
B)  25% 
C)  50% 
D)  75% 
E)  100%

Question 8

The actual genetic constitution of an individual is its

Accepted Answer

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

Question 9

Which of the following statements concerning development of the integumentary system is true?

Accepted Answer

A)  The epidermis is derived from mesoderm. 
B)  The melanocytes are derived from ectoderm. 
C)  Nails, hair, and glands develop from the dermis. 
D)  Sensory receptors in the skin are derived from the epidermis. 
E)  Collagen fibers do not appear until after birth. 
A)  The epidermis is derived from mesoderm. 
B)  The melanocytes are derived from ectoderm. 
C)  Nails, hair, and glands develop from the dermis. 
D)  Sensory receptors in the skin are derived from the epidermis. 
E)  Collagen fibers do not appear until after birth.

Question 10

What term means that both alleles are the same?

Accepted Answer

A)  locus 
B)  alleles 
C)  homozygous 
D)  heterozygous 
E)  karyotype 
A)  locus 
B)  alleles 
C)  homozygous 
D)  heterozygous 
E)  karyotype

Question 11

The genotype WW is best described as

Accepted Answer

A)  homozygous recessive. 
B)  homozygous dominant. 
C)  heterozygous dominant. 
D)  heterozygous recessive. 
E)  homorecessive. 
A)  homozygous recessive. 
B)  homozygous dominant. 
C)  heterozygous dominant. 
D)  heterozygous recessive. 
E)  homorecessive.

Question 12

Which of the following genotypes will result in a male?

Accepted Answer

A)  XO 
B)  XY 
C)  XX 
D)  XXX 
E)  YY 
A)  XO 
B)  XY 
C)  XX 
D)  XXX 
E)  YY

Question 13

The common junction of the digestive, urinary, and genital systems is the

Accepted Answer

A)  cloaca. 
B)  coelom. 
C)  allantois. 
D)  hindgut. 
E)  anus. 
A)  cloaca. 
B)  coelom. 
C)  allantois. 
D)  hindgut. 
E)  anus.

Question 14

Premature aging is called

Accepted Answer

A)  progeria. 
B)  lactation. 
C)  parturition. 
D)  Alzheimer's disease. 
E)  dementia. 
A)  progeria. 
B)  lactation. 
C)  parturition. 
D)  Alzheimer's disease. 
E)  dementia.

Question 15

What is formed by closure of neural groove?

Accepted Answer

A)  mesonephros 
B)  mandibular processes 
C)  neural tube 
D)  secondary palate 
E)  somites 
A)  mesonephros 
B)  mandibular processes 
C)  neural tube 
D)  secondary palate 
E)  somites

Question 16

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. 
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.

Question 17

Somites give rise to

Accepted Answer

A)  nerves. 
B)  blood. 
C)  glands. 
D)  muscles. 
E)  spinal cord. 
A)  nerves. 
B)  blood. 
C)  glands. 
D)  muscles. 
E)  spinal cord.

Question 18

APGAR scores are used to

Accepted Answer

A)  evaluate a newborn's weight. 
B)  assess a newborn's physiological condition. 
C)  measure a newborn's genetic state. 
D)  determine the developmental age of the infant. 
E)  measure the infant. 
A)  evaluate a newborn's weight. 
B)  assess a newborn's physiological condition. 
C)  measure a newborn's genetic state. 
D)  determine the developmental age of the infant. 
E)  measure the infant.

Question 19

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 age 
A)  early childhood 
B)  late childhood 
C)  adolescence 
D)  young adult 
E)  middle age

Question 20

The closed foramen ovale becomes the _____ after birth.

Accepted Answer

A)  fossa ovalis 
B)  ligamentum ovale 
C)  ligamentum venosum 
D)  ligamentum arteriosum 
E)  valves 
A)  fossa ovalis 
B)  ligamentum ovale 
C)  ligamentum venosum 
D)  ligamentum arteriosum 
E)  valves

Exam 29: Development, Growth, Aging, and Genetics

The major organ systems develop during the germinal prenatal period.

In some neonates the foramen ovale does not close to form the fossa ovalis. This would be called a(n) _____.

What genetic disorder is caused by having three chromosomes 21?

Which of the following is derived from ectoderm?

Which germ layer is the epidermis derived from?

Which of the following is involved in stimulating milk letdown?

A non-albino female who is a carrier for the albino allele (Aa), mates with an albino (aa) male. What is the probability that their children will be albino?

The actual genetic constitution of an individual is its

Which of the following statements concerning development of the integumentary system is true?

What term means that both alleles are the same?

The genotype WW is best described as

Which of the following genotypes will result in a male?

The common junction of the digestive, urinary, and genital systems is the

Premature aging is called

What is formed by closure of neural groove?

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

Somites give rise to

APGAR scores are used to

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

The closed foramen ovale becomes the _____ after birth.

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive System

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