Question 1

Most congenital birth defects are caused by

Accepted Answer

A)   inherited traits.
B)   lack of oxygen to the fetus.
C)   viral infections during pregnancy.
D)   unknown causes.
E)   None of the choices are correct.F) C) and E)
G) None of the above

Question 2

The thickened area of the blastocyst from which the embryo develops is called the ________.

Accepted Answer

A)   inner cell mass
B)   trophoblast
C)   blastocele
D)   morula
E)   zygoteF) B) and E)
G) A) and D)

Question 3

The optimal "window of opportunity" to conceive a child is ________.

Accepted Answer

A)   a few days before ovulation to less than a day after
B)   less than a day before ovulation to less than a day after
C)   a few days before ovulation to a few days after
D)   a few days before ovulation
E)   a few days after ovulationF) C) and D)
G) B) and C)

Question 4

A mistake during segregation of chromosomes is called ________.

Accepted Answer

A)   deletion
B)   duplication
C)   nondisjunction
D)   point mutation
E)   aneuploidyF) B) and C)
G) A) and B)

Question 5

In humans, somatic cells have ________ chromosomes, while reproductive cells (gametes)  have ________.

Accepted Answer

A)   23; 46
B)   92; 46
C)   46; 23
D)   46; 69
E)   92; 23F) A) and E)
G) A) and B)

Question 6

At the time of implantation, the human embryo is in a stage of development known as the ________.

Accepted Answer

A)   fetus
B)   zygote
C)   morula
D)   blastocyst
E)   ovumF) A) and D)
G) A) and C)

Question 7

Which germ layer is the urinary bladder derived from?

Accepted Answer

A)   Ectoderm
B)   Mesoderm
C)   EndodermD) B) and C)
E) A) and C)

Question 8

Muscle strength peaks in a/an ________.

Accepted Answer

A)   child
B)   adolescent
C)   young adult
D)   middle aged adult
E)   elderly adultF) B) and D)
G) A) and E)

Question 9

When the embryonic mass of cells develops an internal cavity, the mass of cells is called a/an ________.

Accepted Answer

A)   zygote
B)   morula
C)   blastocyst
D)   embryonic disc
E)   trophoblastF) A) and B)
G) A) and C)

Question 10

APGAR scores are used to

Accepted Answer

A)   evaluate a newborn's weight.
B)   assess a newborn's physiological condition.
C)   measure a newborn's genetic state.
D)   determine the developmental age of the infant.
E)   measure the infant.F) None of the above
G) B) and E)

Question 11

Fine, soft hair that covers the fetus is called ________.

Accepted Answer

A)   lanugo
B)   fetal hair
C)   colostrum
D)   vernix caseosa
E)   primary hairF) A) and C)
G) A) and B)

Question 12

Which of the following is involved in stimulating milk letdown?

Accepted Answer

A)   Increased estrogen levels
B)   Increased progesterone levels
C)   Mechanical stimulation of the breasts that cause release of oxytocin
D)   Secretion of a small amount of milk
E)   None of the choices are correct.F) B) and D)
G) A) and E)

Question 13

The type of fetal monitoring that uses sound waves to visualize the developing fetus is a/an ________.

Accepted Answer

A)   fetoscopy
B)   ultrasound
C)   amniocentesis
D)   chorionic villi sampling
E)   auscultationF) D) and E)
G) A) and B)

Question 14

When more than one gene pair affects a particular trait expression, this is called ________.

Accepted Answer

A)   diploidy
B)   autosomal
C)   genotypic
D)   polygenic
E)   y-linkedF) A) and D)
G) D) and E)

Question 15

Damage to the mesoderm during embryological development would affect the formation of which of the following structures?

Accepted Answer

A)   Thyroid
B)   Brain
C)   Heart
D)   Teeth
E)   Urinary bladderF) A) and E)
G) C) and E)

Question 16

Genes on the X chromosomes are ________.

Accepted Answer

A)   polygenic
B)   X-linked
C)   simple
D)   holandric
E)   Y-linkedF) D) and E)
G) A) and B)

Question 17

Genes that are passed from male to male are called ________.

Accepted Answer

A)   structural genes
B)   autosomes
C)   genotypes
D)   polygenic
E)   y-linkedF) B) and C)
G) A) and E)

Question 18

Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin α6β1. This is called the ________.

Accepted Answer

A)   slow block to polyspermy
B)   acrosomal reaction
C)   fast block to polyspermy
D)   fertilization
E)   spermiogenesisF) B) and D)
G) A) and C)

Question 19

The actual genetic constitution of an individual is the individual's ________.

Accepted Answer

A)   structural gene
B)   autosome
C)   genotype
D)   polygenic
E)   y-linkedF) All of the above
G) A) and E)

Question 20

The process of meiosis will ________ as the gametes are produced.

Accepted Answer

A)   reduce the chromosome number by 1/3
B)   reduce the chromosome number by 1/2
C)   double the chromosome number
D)   not change the chromosome number
E)   triple the chromosome numberF) C) and E)
G) C) and D)

Exam 29: Development, Growth, Aging, and Genetics

Which germ layer is the urinary bladder derived from?

Correct AnswerverifiedShow Answer

APGAR scores are used to

Correct AnswerverifiedShow Answer

The type of fetal monitoring that uses sound waves to visualize the developing fetus is a/an ________.

Correct AnswerverifiedShow Answer

The optimal "window of opportunity" to conceive a child is ________.

Correct AnswerverifiedShow Answer

When more than one gene pair affects a particular trait expression, this is called ________.

Correct AnswerverifiedShow Answer

Genes on the X chromosomes are ________.

Correct AnswerverifiedShow Answer

Muscle strength peaks in a/an ________.

Correct AnswerverifiedShow Answer

Which of the following is involved in stimulating milk letdown?

Correct AnswerverifiedShow Answer

The thickened area of the blastocyst from which the embryo develops is called the ________.

Correct AnswerverifiedShow Answer

The actual genetic constitution of an individual is the individual's ________.

Correct AnswerverifiedShow Answer

Damage to the mesoderm during embryological development would affect the formation of which of the following structures?

Correct AnswerverifiedShow Answer

Fine, soft hair that covers the fetus is called ________.

Correct AnswerverifiedShow Answer

In humans, somatic cells have ________ chromosomes, while reproductive cells (gametes) have ________.

Correct AnswerverifiedShow Answer

At the time of implantation, the human embryo is in a stage of development known as the ________.

Correct AnswerverifiedShow Answer

Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin α6β1. This is called the ________.

Correct AnswerverifiedShow Answer

Genes that are passed from male to male are called ________.

Correct AnswerverifiedShow Answer

Most congenital birth defects are caused by

Correct AnswerverifiedShow Answer

When the embryonic mass of cells develops an internal cavity, the mass of cells is called a/an ________.

Correct AnswerverifiedShow Answer

A mistake during segregation of chromosomes is called ________.

Correct AnswerverifiedShow Answer

The process of meiosis will ________ as the gametes are produced.

Correct AnswerverifiedShow Answer

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In humans, somatic cells have chromosomes, while reproductive cells (gametes) have .

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