Question 1

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 2

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 3

Gastrulation is the process of development that produces the

Accepted Answer

A) placenta. 
B) embryonic disk. 
C) germ layers. 
D) rudimentary organs. 
A) placenta. 
B) embryonic disk. 
C) germ layers. 
D) rudimentary organs.

Question 4

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 5

Autoimmune diseases such as arthritis become more common as people get older."Autoimmune" means that the immune system

Accepted Answer

A) no longer produces antibodies. 
B) destroys the body's own tissues. 
C) is incapable of initiating phagocytosis. 
D) produces T cells but no B cells. 
E) protects itself. 
A) no longer produces antibodies. 
B) destroys the body's own tissues. 
C) is incapable of initiating phagocytosis. 
D) produces T cells but no B cells. 
E) protects itself.

Question 6

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 7

What genetic disorder is a type of dwarfism characterized by shortening of the upper and lower limbs?

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

What term describes the inheritance of a trait which in the heterozygote has an intermediate expression between either allele?

Accepted Answer

A) Incomplete penetrance 
B) Incomplete dominance 
C) Complete dominance 
D) Codominance 
A) Incomplete penetrance 
B) Incomplete dominance 
C) Complete dominance 
D) Codominance

Question 9

A patent ductus arteriosus means that the _____ did not close.

Accepted Answer

A) intraatrial septum 
B) intraventricular septum 
C) connection between the pulmonary trunk and the aorta 
D) connection between the inferior vena cava and the abdominal aorta 
E) umbilical arteries and veins 
A) intraatrial septum 
B) intraventricular septum 
C) connection between the pulmonary trunk and the aorta 
D) connection between the inferior vena cava and the abdominal aorta 
E) umbilical arteries and veins

Question 10

Which of the following statements concerning the digestive system of a newborn is true?

Accepted Answer

A) The infant may lose 15% to 20% of his body weight in the first week. 
B) The pH of the stomach is nearly neutral,but increases in acidity after birth. 
C) The liver of the newborn is functionally mature. 
D) The ability to digest lactose does not occur until 48 hours after birth. 
E) All foods can be digested at birth. 
A) The infant may lose 15% to 20% of his body weight in the first week. 
B) The pH of the stomach is nearly neutral,but increases in acidity after birth. 
C) The liver of the newborn is functionally mature. 
D) The ability to digest lactose does not occur until 48 hours after birth. 
E) All foods can be digested at birth.

Question 11

Failure of the neural tube to close in the region of the head results in

Accepted Answer

A) anencephaly. 
B) ventricular enlargement. 
C) cleft palate. 
D) soft spots on the skull. 
E) hydrocephaly. 
A) anencephaly. 
B) ventricular enlargement. 
C) cleft palate. 
D) soft spots on the skull. 
E) hydrocephaly.

Question 12

Pulling to a standing position is a typical milestone for which age?

Accepted Answer

A) 6 weeks 
B) 6 months 
C) 12 weeks 
D) 12 months 
E) 18 weeks 
A) 6 weeks 
B) 6 months 
C) 12 weeks 
D) 12 months 
E) 18 weeks

Question 13

A person's height,intelligence,eye color,and skin color are examples of

Accepted Answer

A) incomplete dominance. 
B) complete dominance. 
C) complete recessiveness. 
D) codominance. 
E) polygenic traits. 
A) incomplete dominance. 
B) complete dominance. 
C) complete recessiveness. 
D) codominance. 
E) polygenic traits.

Question 14

The single layer of cells that surrounds the blastocele is the

Accepted Answer

A) morula. 
B) gastrula. 
C) blastocyst. 
D) trophoblast. 
E) inner cell mass. 
A) morula. 
B) gastrula. 
C) blastocyst. 
D) trophoblast. 
E) inner cell mass.

Question 15

What is the acrosomal reaction?

Accepted Answer

A) The formation of the acrosome in the epididymis 
B) The activation of enzymes for action on the surface of the egg 
C) The release of ADP from the mitochondria on the midpiece 
D) The release of prostatic fluid to produce the semen 
A) The formation of the acrosome in the epididymis 
B) The activation of enzymes for action on the surface of the egg 
C) The release of ADP from the mitochondria on the midpiece 
D) The release of prostatic fluid to produce the semen

Question 16

A different form of an allele at a particular locus that can have no effect to major effects on the phenotype is a(n)

Accepted Answer

A) allelic variant. 
B) mutated allele. 
C) polymorphism. 
D) All of the choices are correct. 
A) allelic variant. 
B) mutated allele. 
C) polymorphism. 
D) All of the choices are correct.

Question 17

The adult kidney develops from the

Accepted Answer

A) pronephros. 
B) metanephros. 
C) mesonephros. 
D) allantois. 
E) neonephros. 
A) pronephros. 
B) metanephros. 
C) mesonephros. 
D) allantois. 
E) neonephros.

Question 18

One component of brain death is defined as

Accepted Answer

A) loss of reflexes. 
B) lack of spontaneous movement. 
C) a flat electroencephalogram (EEG). 
A) loss of reflexes. 
B) lack of spontaneous movement. 
C) a flat electroencephalogram (EEG).

Question 19

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

Accepted Answer

A) karyotype. 
B) autosome. 
C) homolog. 
D) locus. 
E) genome. 
A) karyotype. 
B) autosome. 
C) homolog. 
D) locus. 
E) genome.

Question 20

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

Exam 29: Development,growth,aging,and Genetics

Many of the emotional characteristics of a person are formed during

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

Gastrulation is the process of development that produces the

If a woman ovulates two oocytes and both are fertilized,

Autoimmune diseases such as arthritis become more common as people get older."Autoimmune" means that the immune system

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

What genetic disorder is a type of dwarfism characterized by shortening of the upper and lower limbs?

What term describes the inheritance of a trait which in the heterozygote has an intermediate expression between either allele?

A patent ductus arteriosus means that the _____ did not close.

Which of the following statements concerning the digestive system of a newborn is true?

Failure of the neural tube to close in the region of the head results in

Pulling to a standing position is a typical milestone for which age?

A person's height,intelligence,eye color,and skin color are examples of

The single layer of cells that surrounds the blastocele is the

What is the acrosomal reaction?

A different form of an allele at a particular locus that can have no effect to major effects on the phenotype is a(n)

The adult kidney develops from the

One component of brain death is defined as

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

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

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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