Question 1

Choose the correct statement regarding neonates.

Accepted Answer

A)  Urinary water losses are low. 
B)  The digestive system is extremely active before birth. 
C)  Neonatal respiratory rates are considerably lower than those of adults. 
D)  Typical neonatal heart rates are lower than fetal heart rates. 
E)  At birth, the lungs are fully expanded and filled with fluid. 
A)  Urinary water losses are low. 
B)  The digestive system is extremely active before birth. 
C)  Neonatal respiratory rates are considerably lower than those of adults. 
D)  Typical neonatal heart rates are lower than fetal heart rates. 
E)  At birth, the lungs are fully expanded and filled with fluid.

Question 2

The division of the zygote into two blastomeres occurs during

Accepted Answer

A)  cleavage. 
B)  implantation. 
C)  placentation. 
D)  embryogenesis. 
E)  fertilization. 
A)  cleavage. 
B)  implantation. 
C)  placentation. 
D)  embryogenesis. 
E)  fertilization.

Question 3

The period from birth to the end of the first month is known as (the)

Accepted Answer

A)  senescence. 
B)  neonatal period. 
C)  infancy. 
D)  childhood. 
E)  embryogenesis. 
A)  senescence. 
B)  neonatal period. 
C)  infancy. 
D)  childhood. 
E)  embryogenesis.

Question 4

Which statement is true regarding conjoined twins?

Accepted Answer

A)  Splitting of the inner cell mass may have occurred before gastrulation. 
B)  Surgical separation is nearly impossible even with minor fusion. 
C)  Separation of the blastomeres early in cleavage may have occurred. 
D)  Splitting of the blastomeres or of the embryonic disc is not complete. 
E)  Two separate oocytes are fertilized at the same time. 
A)  Splitting of the inner cell mass may have occurred before gastrulation. 
B)  Surgical separation is nearly impossible even with minor fusion. 
C)  Separation of the blastomeres early in cleavage may have occurred. 
D)  Splitting of the blastomeres or of the embryonic disc is not complete. 
E)  Two separate oocytes are fertilized at the same time.

Question 5

The last stage of labor is the

Accepted Answer

A)  dilation stage. 
B)  expulsion stage. 
C)  placental stage. 
D)  decidual stage. 
E)  neonate stage. 
A)  dilation stage. 
B)  expulsion stage. 
C)  placental stage. 
D)  decidual stage. 
E)  neonate stage.

Question 6

The normal pair of sex chromosomes in males is

Accepted Answer

A)  XX. 
B)  XO. 
C)  YO. 
D)  XY. 
E)  YY. 
A)  XX. 
B)  XO. 
C)  YO. 
D)  XY. 
E)  YY.

Question 7

The aging process is called

Accepted Answer

A)  neonate stage. 
B)  puberty. 
C)  senescence. 
D)  adolescence. 
E)  weaning. 
A)  neonate stage. 
B)  puberty. 
C)  senescence. 
D)  adolescence. 
E)  weaning.

Question 8

During pregnancy,

Accepted Answer

A)  maternal respiratory rate decreases. 
B)  maternal blood volume decreases. 
C)  maternal nutrient requirements decrease significantly. 
D)  a woman's glomerular filtration rate decreases by 20 percent. 
E)  maternal tidal volume increases. 
A)  maternal respiratory rate decreases. 
B)  maternal blood volume decreases. 
C)  maternal nutrient requirements decrease significantly. 
D)  a woman's glomerular filtration rate decreases by 20 percent. 
E)  maternal tidal volume increases.

Question 9

Neural tube formation occurs during which gestational age?

Accepted Answer

A)  4 months 
B)  2 weeks 
C)  1 month 
D)  9 weeks 
E)  5 months 
A)  4 months 
B)  2 weeks 
C)  1 month 
D)  9 weeks 
E)  5 months

Question 10

Near the end of the first trimester, deoxygenated blood flows from the developing embryo or fetus to the placenta through

Accepted Answer

A)  paired umbilical veins. 
B)  the superior vena cava. 
C)  one umbilical vein. 
D)  three umbilical arteries. 
E)  paired umbilical arteries. 
A)  paired umbilical veins. 
B)  the superior vena cava. 
C)  one umbilical vein. 
D)  three umbilical arteries. 
E)  paired umbilical arteries.

Question 11

"Induced" abortions

Accepted Answer

A)  happen due to physiological problems. 
B)  are called "miscarriages." 
C)  are performed when continuing a pregnancy represents a threat to the life and health of the mother. 
D)  occur due to developmental problems. 
E)  are performed at the woman's request. 
A)  happen due to physiological problems. 
B)  are called "miscarriages." 
C)  are performed when continuing a pregnancy represents a threat to the life and health of the mother. 
D)  occur due to developmental problems. 
E)  are performed at the woman's request.

Question 12

Choose the correct statement about amphimixis.

Accepted Answer

A)  a process that results in a zygote 
B)  a genetic disorder based on autosomal dominance 
C)  the transition from morula to blastocyst 
D)  the time during which sperm travel toward the ovum 
E)  the formation of the male and female pronuclei 
A)  a process that results in a zygote 
B)  a genetic disorder based on autosomal dominance 
C)  the transition from morula to blastocyst 
D)  the time during which sperm travel toward the ovum 
E)  the formation of the male and female pronuclei

Question 13

Which statement regarding placental circulation is true?

Accepted Answer

A)  Oxygenated maternal blood re-enters the mother's venous system through chorionic villi. 
B)  Maternal and fetal blood mix near the placenta. 
C)  Deoxygenated maternal blood re-enters the mother's venous system through small uterine veins. 
D)  Deoxygenated blood leaves the chorionic villi through umbilical arteries. 
E)  Oxygenated fetal blood enters the chorionic villi through umbilical arteries. 
A)  Oxygenated maternal blood re-enters the mother's venous system through chorionic villi. 
B)  Maternal and fetal blood mix near the placenta. 
C)  Deoxygenated maternal blood re-enters the mother's venous system through small uterine veins. 
D)  Deoxygenated blood leaves the chorionic villi through umbilical arteries. 
E)  Oxygenated fetal blood enters the chorionic villi through umbilical arteries.

Question 14

In which of the following does the individual carry the sex chromosome pattern XXY and is a male?

Accepted Answer

A)  Down's syndrome 
B)  Klinefelter's syndrome 
C)  Fragile-X syndrome 
D)  Trisomy 21 
E)  Turner's syndrome 
A)  Down's syndrome 
B)  Klinefelter's syndrome 
C)  Fragile-X syndrome 
D)  Trisomy 21 
E)  Turner's syndrome

Question 15

The human genome consists of approximately 3.2 billion base pairs. Protein-coding genes represent ________ of the total genome.

Accepted Answer

A)  25 
B)  10 
C)  2 
D)  50 
E)  99 
A)  25 
B)  10 
C)  2 
D)  50 
E)  99

Question 16

Figure 20-1 Events in Implantation
Use Figure 20-1 to identify the labeled part.
-Label G represents which of the following structures?

Accepted Answer

A)  syncytial trophoblast 
B)  developing villi 
C)  lacuna 
D)  uterine gland 
E)  amniotic cavity 
A)  syncytial trophoblast 
B)  developing villi 
C)  lacuna 
D)  uterine gland 
E)  amniotic cavity

Question 17

Distortion of the cervix stimulates maternal release of which hormone?

Accepted Answer

A)  estrogen 
B)  progesterone 
C)  oxytocin 
D)  relaxin 
E)  human chorionic gonadotropin 
A)  estrogen 
B)  progesterone 
C)  oxytocin 
D)  relaxin 
E)  human chorionic gonadotropin

Question 18

Gastrulation produces an oval, three-layered sheet known as the

Accepted Answer

A)  chorion. 
B)  blastula. 
C)  embryonic disc. 
D)  morula. 
E)  blastocyst. 
A)  chorion. 
B)  blastula. 
C)  embryonic disc. 
D)  morula. 
E)  blastocyst.

Question 19

Figure 20-1 Events in Implantation
Use Figure 20-1 to identify the labeled part.
-Label B represents which of the following structures?

Accepted Answer

A)  blastocoele 
B)  blastocyst 
C)  trophoblast 
D)  developing villi 
E)  chorion 
A)  blastocoele 
B)  blastocyst 
C)  trophoblast 
D)  developing villi 
E)  chorion

Question 20

When two separate oocytes are ovulated and fertilized, ________ develop.

Accepted Answer

A)  identical twins 
B)  conjoined twins 
C)  monozygotic twins 
D)  polygametic twins 
E)  dizygotic twins 
A)  identical twins 
B)  conjoined twins 
C)  monozygotic twins 
D)  polygametic twins 
E)  dizygotic twins

Choose the correct statement regarding neonates.

The division of the zygote into two blastomeres occurs during

The period from birth to the end of the first month is known as (the)

Which statement is true regarding conjoined twins?

The last stage of labor is the

The normal pair of sex chromosomes in males is

The aging process is called

During pregnancy,

Neural tube formation occurs during which gestational age?

Near the end of the first trimester, deoxygenated blood flows from the developing embryo or fetus to the placenta through

"Induced" abortions

Choose the correct statement about amphimixis.

Which statement regarding placental circulation is true?

In which of the following does the individual carry the sex chromosome pattern XXY and is a male?

The human genome consists of approximately 3.2 billion base pairs. Protein-coding genes represent ________ of the total genome.

Figure 20-1 Events in Implantation Use Figure 20-1 to identify the labeled part. -Label G represents which of the following structures?

Distortion of the cervix stimulates maternal release of which hormone?

Gastrulation produces an oval, three-layered sheet known as the

Figure 20-1 Events in Implantation Use Figure 20-1 to identify the labeled part. -Label B represents which of the following structures?

When two separate oocytes are ovulated and fertilized, ________ develop.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Filters

Exam 20: Development and Inheritance

Choose the correct statement regarding neonates.

The division of the zygote into two blastomeres occurs during

The period from birth to the end of the first month is known as (the)

Which statement is true regarding conjoined twins?

The last stage of labor is the

The normal pair of sex chromosomes in males is

The aging process is called

During pregnancy,

Neural tube formation occurs during which gestational age?

Near the end of the first trimester, deoxygenated blood flows from the developing embryo or fetus to the placenta through

"Induced" abortions

Choose the correct statement about amphimixis.

Which statement regarding placental circulation is true?

In which of the following does the individual carry the sex chromosome pattern XXY and is a male?

The human genome consists of approximately 3.2 billion base pairs. Protein-coding genes represent ________ of the total genome.

Figure 20-1 Events in Implantation Use Figure 20-1 to identify the labeled part. -Label G represents which of the following structures?

Distortion of the cervix stimulates maternal release of which hormone?

Gastrulation produces an oval, three-layered sheet known as the

Figure 20-1 Events in Implantation Use Figure 20-1 to identify the labeled part. -Label B represents which of the following structures?

When two separate oocytes are ovulated and fertilized, ________ develop.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Filters