Question 1

Successful fertilization is most likely to occur when intercourse occurs

Accepted Answer

A) within one week of ovulation. 
B) between 2 days before and 1 day after ovulation. 
C) one week before ovulation. 
D) between 4 days before and 2 days after ovulation. 
E) just before implantation. 
A) within one week of ovulation. 
B) between 2 days before and 1 day after ovulation. 
C) one week before ovulation. 
D) between 4 days before and 2 days after ovulation. 
E) just before implantation.

Question 2

Down syndrome is a genetic disorder that results from

Accepted Answer

A) the presence of an extra 21st chromosome. 
B) an autosomal recessive gene. 
C) a sex-linked dominant gene. 
D) a specific combination of three recessive genes. 
E) the presence of three sex chromosomes usually XXY. 
A) the presence of an extra 21st chromosome. 
B) an autosomal recessive gene. 
C) a sex-linked dominant gene. 
D) a specific combination of three recessive genes. 
E) the presence of three sex chromosomes usually XXY.

Question 3

Which of the developmental stages shown in the diagram is considered to be a fetus?

Accepted Answer

A) B 
B) C 
C) D 
D) E 
E) None of the stages in the diagram are fetal stages. 
A) B 
B) C 
C) D 
D) E 
E) None of the stages in the diagram are fetal stages.

Question 4

The series of rapid mitotic cell divisions that convert a zygote into a morula are called

Accepted Answer

A) gastrulation 
B) differentiation 
C) gravidation 
D) cleavage 
E) implantation 
A) gastrulation 
B) differentiation 
C) gravidation 
D) cleavage 
E) implantation

Question 5

Which of the following structures serves as an early site of formation of blood and blood vessels, and is associated with the development of the urinary bladder?

Accepted Answer

A) yolk sac 
B) allantois 
C) chorion 
D) amnion 
E) umbilical cord 
A) yolk sac 
B) allantois 
C) chorion 
D) amnion 
E) umbilical cord

Question 6

Use the Punnett square of inheritance of red-green color blindness that is shown in the diagram to answer the following question. Recall that uppercase C is the dominant trait and lowercase c is the recessive trait. The type of inheritance of genes shown in this Punnett square is called

Accepted Answer

A) sex-linked inheritance 
B) multiple-allele inheritance 
C) incomplete dominance 
D) mutational inheritance 
E) autosomal crossing over 
A) sex-linked inheritance 
B) multiple-allele inheritance 
C) incomplete dominance 
D) mutational inheritance 
E) autosomal crossing over

Question 7

The principal stimulus for prolactin secretion during lactation is the sucking action of the infant on the nipple.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following anatomical structures develop from the mesoderm of the embryo?

Accepted Answer

A) nervous system 
B) muscle 
C) epidermis 
D) epithelial lining of GI tract 
E) none of the choices is correct 
A) nervous system 
B) muscle 
C) epidermis 
D) epithelial lining of GI tract 
E) none of the choices is correct

Question 9

For fertilization to occur, the sperm has to penetrate through the _____ and the zona pellucida.

Accepted Answer

A) zona glomerulosa 
B) zonula occludens 
C) corona radiata 
D) corona granulosa 
E) cumulus oophorous 
A) zona glomerulosa 
B) zonula occludens 
C) corona radiata 
D) corona granulosa 
E) cumulus oophorous

Question 10

Which of the following hormones is secreted by the chorion of the placenta as a signal to the corpus luteum to continue secreting progesterone?

Accepted Answer

A) estrogen 
B) relaxin 
C) placental lactogen 
D) chorionic gonadotropin 
E) corticotropin-releasing hormone 
A) estrogen 
B) relaxin 
C) placental lactogen 
D) chorionic gonadotropin 
E) corticotropin-releasing hormone

Successful fertilization is most likely to occur when intercourse occurs

Down syndrome is a genetic disorder that results from

Which of the developmental stages shown in the diagram is considered to be a fetus?

The series of rapid mitotic cell divisions that convert a zygote into a morula are called

Which of the following structures serves as an early site of formation of blood and blood vessels, and is associated with the development of the urinary bladder?

Use the Punnett square of inheritance of red-green color blindness that is shown in the diagram to answer the following question. Recall that uppercase C is the dominant trait and lowercase c is the recessive trait. The type of inheritance of genes shown in this Punnett square is called

The principal stimulus for prolactin secretion during lactation is the sucking action of the infant on the nipple.

Which of the following anatomical structures develop from the mesoderm of the embryo?

For fertilization to occur, the sperm has to penetrate through the _____ and the zona pellucida.

Which of the following hormones is secreted by the chorion of the placenta as a signal to the corpus luteum to continue secreting progesterone?

Organization of the Human Body

Introductory Chemistry

Cells

Tissues

The Integumentary System

The Skeletal System

Joints

The Muscular System

Nervous Tissue

Central Nervous System, Spinal Nerves, and Cranial Nerves

Autonomic Nervous System

Somatic Senses and Special Sense

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive Systems

Filters

Exam 24: Development and Inheritance

Successful fertilization is most likely to occur when intercourse occurs

Down syndrome is a genetic disorder that results from

Which of the developmental stages shown in the diagram is considered to be a fetus?

The series of rapid mitotic cell divisions that convert a zygote into a morula are called

Which of the following structures serves as an early site of formation of blood and blood vessels, and is associated with the development of the urinary bladder?

Use the Punnett square of inheritance of red-green color blindness that is shown in the diagram to answer the following question. Recall that uppercase C is the dominant trait and lowercase c is the recessive trait. The type of inheritance of genes shown in this Punnett square is called

The principal stimulus for prolactin secretion during lactation is the sucking action of the infant on the nipple.

Which of the following anatomical structures develop from the mesoderm of the embryo?

For fertilization to occur, the sperm has to penetrate through the _____ and the zona pellucida.

Which of the following hormones is secreted by the chorion of the placenta as a signal to the corpus luteum to continue secreting progesterone?

Organization of the Human Body

Introductory Chemistry

Cells

Tissues

The Integumentary System

The Skeletal System

Joints

The Muscular System

Nervous Tissue

Central Nervous System, Spinal Nerves, and Cranial Nerves

Autonomic Nervous System

Somatic Senses and Special Sense

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive Systems

Filters