Question 1

In males, the urogenital folds close over the urogenital opening and urethral groove to form the

Accepted Answer

A)  scrotum. 
B)  testes. 
C)  vas deferens. 
D)  penis. 
E)  prostate gland. 
A)  scrotum. 
B)  testes. 
C)  vas deferens. 
D)  penis. 
E)  prostate gland.

Question 2

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 3

One of the major problems a premature infant may develop is respiratory distress syndrome. This occurs because in a premature infant

Accepted Answer

A)  oxygen transport is impaired. 
B)  surfactant isn't produced. 
C)  the lungs are collapsed. 
D)  there aren't enough red blood cells to carry oxygen. 
E)  there is mixing of the arterial and venous blood. 
A)  oxygen transport is impaired. 
B)  surfactant isn't produced. 
C)  the lungs are collapsed. 
D)  there aren't enough red blood cells to carry oxygen. 
E)  there is mixing of the arterial and venous blood.

Question 4

The embryo is most sensitive to outside influences that can cause malformations during the

Accepted Answer

A)  first two weeks after fertilization. 
B)  third to the ninth weeks of development. 
C)  ninth to the sixteenth weeks of development. 
D)  twelfth to the twentieth weeks of development. 
E)  twenty-first to twenty-sixth week of development. 
A)  first two weeks after fertilization. 
B)  third to the ninth weeks of development. 
C)  ninth to the sixteenth weeks of development. 
D)  twelfth to the twentieth weeks of development. 
E)  twenty-first to twenty-sixth week of development.

Question 5

One reason for the increased incidence of cancer with aging is a decrease in

Accepted Answer

A)  urine output. 
B)  cardiac output. 
C)  red blood cells. 
D)  functioning of T lymphocytes. 
E)  functioning neutrophils. 
A)  urine output. 
B)  cardiac output. 
C)  red blood cells. 
D)  functioning of T lymphocytes. 
E)  functioning neutrophils.

Question 6

Cells of the neuroectoderm become all of the following EXCEPT the

Accepted Answer

A)  brain 
B)  spinal cord 
C)  postganglionic autonomic neurons 
D)  posterior pituitary gland 
A)  brain 
B)  spinal cord 
C)  postganglionic autonomic neurons 
D)  posterior pituitary gland

Question 7

What genetic disorder is the failure to produce clotting factors?

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 8

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

Question 9

Which germ layer is the thyroid derived from?

Accepted Answer

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

Question 10

Which of the following is NOT a possible route for neural crest cells?

Accepted Answer

A)  melanocytes 
B)  autonomic ganglion neurons 
C)  adrenal cortex 
D)  sensory ganglia 
E)  enteric nervous system neurons 
A)  melanocytes 
B)  autonomic ganglion neurons 
C)  adrenal cortex 
D)  sensory ganglia 
E)  enteric nervous system neurons

Question 11

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

Accepted Answer

A)  half of the offspring are normal. 
B)  half of the offspring are albinos. 
C)  all offspring are normal. 
D)  all offspring are albinos. 
E)  None of these choices is correct. 
A)  half of the offspring are normal. 
B)  half of the offspring are albinos. 
C)  all offspring are normal. 
D)  all offspring are albinos. 
E)  None of these choices is correct.

Question 12

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

Question 13

-The picture shows a mature placenta and fetus. What does "A" represent?

Accepted Answer

A)  umbilical vein 
B)  umbilical arteries 
C)  umbilical cord 
D)  placenta 
E)  endometrium 
A)  umbilical vein 
B)  umbilical arteries 
C)  umbilical cord 
D)  placenta 
E)  endometrium

Question 14

Which of the following structures is NOT involved in the formation of the face?

Accepted Answer

A)  apical ectodermal ridges 
B)  frontonasal process 
C)  maxillary processes 
D)  mandibular processes 
A)  apical ectodermal ridges 
B)  frontonasal process 
C)  maxillary processes 
D)  mandibular processes

Question 15

Which germ layer is the thymus derived from?

Accepted Answer

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

Question 16

Many of the emotional characteristics of a person are formed during

Accepted Answer

A)  infancy. 
B)  early childhood. 
C)  adolescence. 
D)  adulthood. 
E)  neonatal period. 
A)  infancy. 
B)  early childhood. 
C)  adolescence. 
D)  adulthood. 
E)  neonatal period.

Question 17

The olfactory bulbs and nerves develop as an evagination from the

Accepted Answer

A)  myelencephalon. 
B)  mesencephalon. 
C)  neural crest cells. 
D)  diencephalon. 
E)  telencephalon. 
A)  myelencephalon. 
B)  mesencephalon. 
C)  neural crest cells. 
D)  diencephalon. 
E)  telencephalon.

Question 18

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 tube 
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 tube

Question 19

-What does "D" represent on the diagram?

Accepted Answer

A)  fertilization 
B)  morula 
C)  blastocyst 
D)  implantation 
E)  ovulation 
A)  fertilization 
B)  morula 
C)  blastocyst 
D)  implantation 
E)  ovulation

Question 20

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)  arteriosclerosis 
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)  arteriosclerosis

Exam 29: Development, Growth, Aging, and Genetics

In males, the urogenital folds close over the urogenital opening and urethral groove to form the

Premature aging is called

One of the major problems a premature infant may develop is respiratory distress syndrome. This occurs because in a premature infant

The embryo is most sensitive to outside influences that can cause malformations during the

One reason for the increased incidence of cancer with aging is a decrease in

Cells of the neuroectoderm become all of the following EXCEPT the

What genetic disorder is the failure to produce clotting factors?

If a woman ovulates two oocytes and both are fertilized,

Which germ layer is the thyroid derived from?

Which of the following is NOT a possible route for neural crest cells?

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

Chromosomes that are NOT associated with sex determination are known as

-The picture shows a mature placenta and fetus. What does "A" represent?

Which of the following structures is NOT involved in the formation of the face?

Which germ layer is the thymus derived from?

Many of the emotional characteristics of a person are formed during

The olfactory bulbs and nerves develop as an evagination from the

Where does implantation normally occur?

-What does "D" represent on the diagram?

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

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, Electrolytes, and Acidbase Balance

Reproductive System

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