Question 1

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 2

The hormone responsible for milk production is ________.

Accepted Answer

A)  estrogen 
B)  progesterone 
C)  oxytocin 
D)  prolactin 
E)  FSH 
A)  estrogen 
B)  progesterone 
C)  oxytocin 
D)  prolactin 
E)  FSH

Question 3

If a woman ovulates two oocytes and both are fertilized,

Accepted Answer

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

Question 4

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)  ten 
A)  two 
B)  four 
C)  six 
D)  eight 
E)  ten

Question 5

The chorionic villi

Accepted Answer

A)  form from branches of the syncytiotrophoblast cords. 
B)  increase surface area of the amniotic cavity. 
C)  contribute to the formation of the placenta. 
D)  are necessary for implantation to occur. 
E)  are not part of the placental formation. 
A)  form from branches of the syncytiotrophoblast cords. 
B)  increase surface area of the amniotic cavity. 
C)  contribute to the formation of the placenta. 
D)  are necessary for implantation to occur. 
E)  are not part of the placental formation.

Question 6

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

Accepted Answer

A)  there is a 50% probability that the child will have normal pigmentation. 
B)  there is a 50% probability that the child will have albinism. 
C)  there is a 100% probability that the child will have normal pigmentation. 
D)  there is a 100% probability that the child will have albinism. 
A)  there is a 50% probability that the child will have normal pigmentation. 
B)  there is a 50% probability that the child will have albinism. 
C)  there is a 100% probability that the child will have normal pigmentation. 
D)  there is a 100% probability that the child will have albinism.

Question 7

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

Question 8

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

Accepted Answer

A)  Anterior pituitary 
B)  Posterior pituitary 
C)  Thyroid gland 
D)  Adrenal glands 
E)  Pancreas 
A)  Anterior pituitary 
B)  Posterior pituitary 
C)  Thyroid gland 
D)  Adrenal glands 
E)  Pancreas

Question 9

Regarding fertilization, which of the following events happens first?

Accepted Answer

A)  The fast block to polyspermy 
B)  The slow block to polyspermy 
C)  The cortical reaction 
D)  The acrosomal reaction 
A)  The fast block to polyspermy 
B)  The slow block to polyspermy 
C)  The cortical reaction 
D)  The acrosomal reaction

Question 10

________ is an example of a recessive genetic disease that affects the formation of normal hemoglobin molecules.

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 11

Which germ layer is the system responsible for moving substances around the body derived from?

Accepted Answer

A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm 
A)  Ectoderm 
B)  Mesoderm 
C)  Endoderm

Question 12

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 13

The process of forming three germ layers from the embryonic disk is called ________.

Accepted Answer

A)  gastrulation 
B)  differentiation 
C)  fertilization 
D)  meiosis 
E)  implantation 
A)  gastrulation 
B)  differentiation 
C)  fertilization 
D)  meiosis 
E)  implantation

Question 14

Fusion of the male and female pronuclei forms the ________.

Accepted Answer

A)  blastocyst 
B)  morula 
C)  zygote 
D)  gastrula 
E)  trophoblast 
A)  blastocyst 
B)  morula 
C)  zygote 
D)  gastrula 
E)  trophoblast

Question 15

During birth, an infant is normally stimulated to breathe by ________.

Accepted Answer

A)  CO2 accumulating in the baby's blood 
B)  an increased O2 level in the baby's new environment 
C)  prostaglandins 
D)  surfactant 
E)  being spanked by the doctor 
A)  CO2 accumulating in the baby's blood 
B)  an increased O2 level in the baby's new environment 
C)  prostaglandins 
D)  surfactant 
E)  being spanked by the doctor

Question 16

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 
A)  lanugo 
B)  fetal hair 
C)  colostrum 
D)  vernix caseosa 
E)  primary hair

Question 17

Urine retention is a greater problem for elderly men than for elderly women because men

Accepted Answer

A)  can develop benign prostatic hyperplasia. 
B)  have larger bladders. 
C)  have weaker urinary sphincters. 
D)  have narrower ureters. 
E)  have fewer glomeruli. 
A)  can develop benign prostatic hyperplasia. 
B)  have larger bladders. 
C)  have weaker urinary sphincters. 
D)  have narrower ureters. 
E)  have fewer glomeruli.

Exam 29: Development, Growth, Aging, and Genetics

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

The hormone responsible for milk production is ________.

If a woman ovulates two oocytes and both are fertilized,

An infant who has just started cooing and gurgling in response to smiles and attention from its parents is about ________ months old.

The chorionic villi

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

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

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

Regarding fertilization, which of the following events happens first?

________ is an example of a recessive genetic disease that affects the formation of normal hemoglobin molecules.

Which germ layer is the system responsible for moving substances around the body derived from?

Where does implantation normally occur?

The process of forming three germ layers from the embryonic disk is called ________.

Fusion of the male and female pronuclei forms the ________.

During birth, an infant is normally stimulated to breathe by ________.

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

Urine retention is a greater problem for elderly men than for elderly women because men

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint 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-Base Balance

Reproductive System

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