Question 1

Placental functions are concentrated in a disc-shaped area in the endometrium called the

Accepted Answer

A)  trophoblast. 
B)  allantois. 
C)  capsular decidua. 
D)  basal decidua. 
E)  parietal decidua. 
A)  trophoblast. 
B)  allantois. 
C)  capsular decidua. 
D)  basal decidua. 
E)  parietal decidua. D

Question 2

The presence of a recessive gene can be detected (seen) only if the individual is

Accepted Answer

A)  homozygous recessive. 
B)  heterozygous dominant. 
C)  heterozygous recessive. 
D)  homozygous dominant. 
E)  epistatic recessive. 
A)  homozygous recessive. 
B)  heterozygous dominant. 
C)  heterozygous recessive. 
D)  homozygous dominant. 
E)  epistatic recessive. A

Question 3

In ________, a sample of amniotic fluid is removed and the fetal cells it contains are analyzed.

Accepted Answer

A)  chorionic villus sampling 
B)  amniocentesis 
C)  paracentesis 
D)  amniosis 
E)  thoracentesis 
A)  chorionic villus sampling 
B)  amniocentesis 
C)  paracentesis 
D)  amniosis 
E)  thoracentesis B

Question 4

Which of the following does not occur at puberty?

Accepted Answer

A)  FSH levels rise. 
B)  GnRH levels decline. 
C)  Levels of sex hormones rise. 
D)  Gametogenesis begins. 
E)  Secondary sexual characteristics begin to develop. 
A)  FSH levels rise. 
B)  GnRH levels decline. 
C)  Levels of sex hormones rise. 
D)  Gametogenesis begins. 
E)  Secondary sexual characteristics begin to develop.

Question 5

The cell that directly results from the fusion of a secondary oocyte and a single sperm is called a(n)

Accepted Answer

A)  ootid. 
B)  gastrula. 
C)  blastula. 
D)  morula. 
E)  zygote. 
A)  ootid. 
B)  gastrula. 
C)  blastula. 
D)  morula. 
E)  zygote.

Question 6

If an individual carries two different alleles for the same trait, the individual is ________ for the trait.

Accepted Answer

A)  homologous 
B)  homozygous 
C)  heterozygous 
D)  autosomous 
E)  polygenic 
A)  homologous 
B)  homozygous 
C)  heterozygous 
D)  autosomous 
E)  polygenic

Question 7

If a color-blind (X-linked recessive trait) man marries a woman who is heterozygous for the trait, whatproportion of their male offspring can be expected to be color blind?

Accepted Answer

A)  1/2 
B)  1/4 
C)  1/8 
D)  3/4 
E)  100 (all) 
A)  1/2 
B)  1/4 
C)  1/8 
D)  3/4 
E)  100 (all)

Question 8

Figure 29-2 Fetus at 10 Weeks
  
Use Figure 29-2 to answer the following questions:
-Identify the structure labeled "2."

Accepted Answer

A)  basal decidua 
B)  chorion 
C)  amnion 
D)  placenta 
E)  endometrium 
A)  basal decidua 
B)  chorion 
C)  amnion 
D)  placenta 
E)  endometrium

Question 9

The process by which a viable embryo is formed is called

Accepted Answer

A)  embryogenesis. 
B)  organogenesis. 
C)  gametogenesis. 
D)  morphogenesis. 
E)  blastogenesis. 
A)  embryogenesis. 
B)  organogenesis. 
C)  gametogenesis. 
D)  morphogenesis. 
E)  blastogenesis.

Question 10

The entire set of chromosomes of an individual can be visualized on a

Accepted Answer

A)  locus. 
B)  map. 
C)  karyotype. 
D)  Punnett square. 
E)  genotype. 
A)  locus. 
B)  map. 
C)  karyotype. 
D)  Punnett square. 
E)  genotype.

Question 11

The infancy stage of life is considered to be over at

Accepted Answer

A)  3 months 
B)  age 2. 
C)  6 months. 
D)  1 month. 
E)  18 months. 
A)  3 months 
B)  age 2. 
C)  6 months. 
D)  1 month. 
E)  18 months.

Question 12

A patient comes in the clinic expressing concern over changes in her body. She says she has been experiencing axillary and genital hair growth, breast growth, acne and she is going through a growth spurt. You reassure her these are all a normal part of maturation and inform her that she has begun

Accepted Answer

A)  menarche. 
B)  menopause. 
C)  peri-menopause. 
D)  prenatal development. 
E)  puberty. 
A)  menarche. 
B)  menopause. 
C)  peri-menopause. 
D)  prenatal development. 
E)  puberty.

Question 13

Fraternal twins result from

Accepted Answer

A)  one egg that is fertilized by two different sperm. 
B)  two different zygotes. 
C)  one zygote that splits into two zygotes. 
D)  two eggs fertilized by one sperm cell. 
E)  a blastula that splits into two blastulas. 
A)  one egg that is fertilized by two different sperm. 
B)  two different zygotes. 
C)  one zygote that splits into two zygotes. 
D)  two eggs fertilized by one sperm cell. 
E)  a blastula that splits into two blastulas.

Question 14

Which of the following statements concerning development is false?

Accepted Answer

A)  The term induction refers to the chemical interplay between developing cells. 
B)  The developing oocyte receives molecules that affect development from the surrounding granulosa cells. 
C)  Each blastomere in the blastocyst receives exactly the same cytoplasmic composition. 
D)  Differences in a cell's cytoplasmic makeup affect the cell's genetic activity. 
E)  Cells release molecules that affect the developmental process of neighboring cells. 
A)  The term induction refers to the chemical interplay between developing cells. 
B)  The developing oocyte receives molecules that affect development from the surrounding granulosa cells. 
C)  Each blastomere in the blastocyst receives exactly the same cytoplasmic composition. 
D)  Differences in a cell's cytoplasmic makeup affect the cell's genetic activity. 
E)  Cells release molecules that affect the developmental process of neighboring cells.

Question 15

The ectoderm forms

Accepted Answer

A)  muscle. 
B)  blood. 
C)  neural tissues. 
D)  the lining of the digestive tract. 
E)  the urinary system. 
A)  muscle. 
B)  blood. 
C)  neural tissues. 
D)  the lining of the digestive tract. 
E)  the urinary system.

Question 16

What activity during oocyte activation prevents penetration by additional sperm?

Accepted Answer

The first sperm to penetrate the oocyte

Question 17

The penetration of the endometrium by the blastocyst is referred to as

Accepted Answer

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

Question 18

If a sperm carrying the "Y" chromosome fertilizes the ovum, the resulting offspring will be

Accepted Answer

A)  haploid. 
B)  Rh positive blood type. 
C)  male. 
D)  fraternal twins. 
E)  female. 
A)  haploid. 
B)  Rh positive blood type. 
C)  male. 
D)  fraternal twins. 
E)  female.

Question 19

Which of the following statements about the first trimester is false?

Accepted Answer

A)  The events that occur during the first trimester are very complex. 
B)  Only about 40 percent of conceptions survive the first trimester. 
C)  During this trimester, cleavage, implantation, placentation and embryogenesis occur. 
D)  The fetus gains the most weight during the first trimester. 
E)  It consists of 10 developmental weeks. 
A)  The events that occur during the first trimester are very complex. 
B)  Only about 40 percent of conceptions survive the first trimester. 
C)  During this trimester, cleavage, implantation, placentation and embryogenesis occur. 
D)  The fetus gains the most weight during the first trimester. 
E)  It consists of 10 developmental weeks.

Question 20

The gene for normal skin pigment (A) can also code for the recessive trait of albinism (a). An albino manand a homozygous normal pigmented woman marry and have four children. What is the phenotype of the children?

Accepted Answer

A)  75% normal skin pigment and 25% albino 
B)  100% normal skin pigment 
C)  50% normal skin pigment and 50% albino 
D)  25% normal skin pigment and 75% albino 
E)  100% albino 
A)  75% normal skin pigment and 25% albino 
B)  100% normal skin pigment 
C)  50% normal skin pigment and 50% albino 
D)  25% normal skin pigment and 75% albino 
E)  100% albino

Exam 29: Development and Inheritance

Placental functions are concentrated in a disc-shaped area in the endometrium called the

The presence of a recessive gene can be detected (seen) only if the individual is

In ________, a sample of amniotic fluid is removed and the fetal cells it contains are analyzed.

Which of the following does not occur at puberty?

The cell that directly results from the fusion of a secondary oocyte and a single sperm is called a(n)

If an individual carries two different alleles for the same trait, the individual is ________ for the trait.

If a color-blind (X-linked recessive trait) man marries a woman who is heterozygous for the trait, whatproportion of their male offspring can be expected to be color blind?

Figure 29-2 Fetus at 10 Weeks Use Figure 29-2 to answer the following questions: -Identify the structure labeled "2."

The process by which a viable embryo is formed is called

The entire set of chromosomes of an individual can be visualized on a

The infancy stage of life is considered to be over at

A patient comes in the clinic expressing concern over changes in her body. She says she has been experiencing axillary and genital hair growth, breast growth, acne and she is going through a growth spurt. You reassure her these are all a normal part of maturation and inform her that she has begun

Fraternal twins result from

Which of the following statements concerning development is false?

The ectoderm forms

What activity during oocyte activation prevents penetration by additional sperm?

The penetration of the endometrium by the blastocyst is referred to as

If a sperm carrying the "Y" chromosome fertilizes the ovum, the resulting offspring will be

Which of the following statements about the first trimester is false?

The gene for normal skin pigment (A) can also code for the recessive trait of albinism (a). An albino manand a homozygous normal pigmented woman marry and have four children. What is the phenotype of the children?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

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