Question 1

Which of the following develops from the epiblast and carries a protective fluid?

Accepted Answer

A) Cytotrophoblast 
B) Yolk sac 
C) Exocoelomic membrane 
D) Amnion 
E) Lacunae 
A) Cytotrophoblast 
B) Yolk sac 
C) Exocoelomic membrane 
D) Amnion 
E) Lacunae

Question 2

In an individual who is heterozygous for a certain trait,the dominant allele gives Huntington's disease.What is the masked,recessive trait in this individual?

Accepted Answer

A) Normal vision 
B) Normal digits 
C) Normal nervous system 
D) Polydactyly 
E) Straight thumb 
A) Normal vision 
B) Normal digits 
C) Normal nervous system 
D) Polydactyly 
E) Straight thumb

Question 3

In an individual who is heterozygous for a certain gene,the dominant allele is responsible for that person having the trait of polydactyly.What is the masked,recessive trait in this individual?

Accepted Answer

A) Normal vision 
B) Brachydactyly 
C) Normal digits 
D) Syndactylism 
E) Straight thumb 
A) Normal vision 
B) Brachydactyly 
C) Normal digits 
D) Syndactylism 
E) Straight thumb

Question 4

Which of the terms below describes the beginning or first discernable indication of the development of an organ or structure?

Accepted Answer

A) Conceptus 
B) Primordium 
C) Epigenesis 
D) Karyotype 
E) Fertilization age 
A) Conceptus 
B) Primordium 
C) Epigenesis 
D) Karyotype 
E) Fertilization age

Question 5

What exam is performed between 14-16 weeks gestation and is used to detect genetic abnormalities?

Accepted Answer

A) Sonogram 
B) Amniocentesis 
C) CVS 
D) AFP test 
E) CBC 
A) Sonogram 
B) Amniocentesis 
C) CVS 
D) AFP test 
E) CBC

Question 6

Which hormone causes release of milk into the mammary ducts via the milk ejection reflex?

Accepted Answer

A) Prolactin 
B) Oxytocin 
C) Estrogen 
D) Progesterone 
E) Aldosterone 
A) Prolactin 
B) Oxytocin 
C) Estrogen 
D) Progesterone 
E) Aldosterone

Question 7

The principal hormone in promoting milk production is

Accepted Answer

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

Question 8

What is line "F" pointing to in the figure?

Accepted Answer

A) Umbilical arteries 
B) Umbilical vein 
C) Fetal blood vessels 
D) Maternal endometrial arteriole 
E) Chorionic villi 
A) Umbilical arteries 
B) Umbilical vein 
C) Fetal blood vessels 
D) Maternal endometrial arteriole 
E) Chorionic villi

Question 9

A teratogen induced developmental defect resulting in characteristic facial features is associated with

Accepted Answer

A) Down syndrome 
B) Prader-Willi syndrome 
C) Fetal alcohol syndrome 
D) Angelman syndrome 
E) Sudden death syndrome 
A) Down syndrome 
B) Prader-Willi syndrome 
C) Fetal alcohol syndrome 
D) Angelman syndrome 
E) Sudden death syndrome

Question 10

A Barr body

Accepted Answer

A) is an inactivated X chromosome 
B) cannot be stained 
C) is transcribed and translated 
D) is seen in males 
E) is only found in humans 
A) is an inactivated X chromosome 
B) cannot be stained 
C) is transcribed and translated 
D) is seen in males 
E) is only found in humans

Question 11

Which condition listed is a sex chromo some aneuploidy,caused by the presence of a single X chromosome designated XO?

Accepted Answer

A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome 
A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome

Question 12

If one parent has type A blood and one parent has type B blood,what blood type is possible for their child?

Accepted Answer

A) AB 
B) A 
C) B 
D) O 
E) All of these choices 
A) AB 
B) A 
C) B 
D) O 
E) All of these choices

Question 13

When phenotype can be drastically different depending on whether the gene is inherited from the mother or father it is called:

Accepted Answer

A) Mutation 
B) Translocation 
C) Genomic imprinting 
D) Incomplete dominance 
E) Nondisjunction 
A) Mutation 
B) Translocation 
C) Genomic imprinting 
D) Incomplete dominance 
E) Nondisjunction

Question 14

In an individual who is heterozygous for a certain gene,the dominant allele is responsible for that person having diabetes insipidus.What is the masked,recessive trait in this individual?

Accepted Answer

A) Normal vision 
B) Normal urine excretion 
C) Normal digits 
D) Normal chloride transport 
E) Normal skin pigmentation 
A) Normal vision 
B) Normal urine excretion 
C) Normal digits 
D) Normal chloride transport 
E) Normal skin pigmentation

Question 15

Which condition listed is a malpresentation in which the fetal buttocks or lower limbs present into the maternal pelvis?

Accepted Answer

A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome 
A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome

Question 16

What connects the umbilical vein to the inferior vena cava in infants?

Accepted Answer

A) Ductus venosus 
B) Ductus arteriosus 
C) Anteriosum 
D) Patent ductus arteriosus 
E) Superior vena cava 
A) Ductus venosus 
B) Ductus arteriosus 
C) Anteriosum 
D) Patent ductus arteriosus 
E) Superior vena cava

Question 17

Which of the following is the connection between the placenta and the embryo?

Accepted Answer

A) Amnion 
B) Chorion 
C) Umbilical cord 
D) Placenta 
E) Capillary beds 
A) Amnion 
B) Chorion 
C) Umbilical cord 
D) Placenta 
E) Capillary beds

Question 18

Which of the following are major potential teratogens that affect embryonic development?

Accepted Answer

A) Alcohol 
B) Cigarette smoke 
C) Various prescription drugs 
D) Irradiation 
E) All of these 
A) Alcohol 
B) Cigarette smoke 
C) Various prescription drugs 
D) Irradiation 
E) All of these

Question 19

Which structure was formerly called the blastocyst cavity?

Accepted Answer

A) C 
B) D 
C) E 
D) F 
E) G 
A) C 
B) D 
C) E 
D) F 
E) G

Question 20

Which condition listed is also called morning sickness?

Accepted Answer

A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome 
A) Emesis gravidarum 
B) Deformation 
C) Turner's syndrome 
D) Breech presentation 
E) Klinefelter's syndrome

Exam 29: Development and Inheritance

Which of the following develops from the epiblast and carries a protective fluid?

In an individual who is heterozygous for a certain trait,the dominant allele gives Huntington's disease.What is the masked,recessive trait in this individual?

In an individual who is heterozygous for a certain gene,the dominant allele is responsible for that person having the trait of polydactyly.What is the masked,recessive trait in this individual?

Which of the terms below describes the beginning or first discernable indication of the development of an organ or structure?

What exam is performed between 14-16 weeks gestation and is used to detect genetic abnormalities?

Which hormone causes release of milk into the mammary ducts via the milk ejection reflex?

The principal hormone in promoting milk production is

What is line "F" pointing to in the figure?

A teratogen induced developmental defect resulting in characteristic facial features is associated with

A Barr body

Which condition listed is a sex chromo some aneuploidy,caused by the presence of a single X chromosome designated XO?

If one parent has type A blood and one parent has type B blood,what blood type is possible for their child?

When phenotype can be drastically different depending on whether the gene is inherited from the mother or father it is called:

In an individual who is heterozygous for a certain gene,the dominant allele is responsible for that person having diabetes insipidus.What is the masked,recessive trait in this individual?

Which condition listed is a malpresentation in which the fetal buttocks or lower limbs present into the maternal pelvis?

What connects the umbilical vein to the inferior vena cava in infants?

Which of the following is the connection between the placenta and the embryo?

Which of the following are major potential teratogens that affect embryonic development?

Which structure was formerly called the blastocyst cavity?

Which condition listed is also called morning sickness?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

Filters