Question 1

-The picture shows a full term pregnancy. What does "A" represent?

Accepted Answer

A)   placenta
B)   umbilical cord
C)   urinary bladder
D)   mucus plug in cervical canal
E)   vaginaF) A) and C)
G) B) and E) B

Question 2

Which of the following statements concerning the digestive system of a newborn is true?

Accepted Answer

A)   The infant may lose 15% to 20% of his body weight in the first week.
B)   The pH of the stomach is nearly neutral, but increases in acidity after birth.
C)   The liver of the newborn is functionally mature.
D)   The ability to digest lactose does not occur until 48 hours after birth.
E)   All foods can be digested at birth.F) A) and D)
G) All of the above

Question 3

Which of the following is correctly matched?

Accepted Answer

A)   first stage of labor - baby exits vagina
B)   second stage of labor - ends with cervix dilation to maximum
C)   third stage of labor - placenta expelled from uterusD) All of the above
E) A) and B)

Question 4

Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin  α\alphaα 6 β\betaβ  1. This is called the

Accepted Answer

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

Question 5

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 these choices is correct.F) B) and C)
G) None of the above

Question 6

The adult kidney develops from the

Accepted Answer

A)   pronephros.
B)   metanephros.
C)   mesonephros.
D)   allantois.
E)   neonephros.F) C) and E)
G) A) and E)

Question 7

Damage to the mesoderm during embryological development would affect the formation of the

Accepted Answer

A)   thyroid.
B)   brain.
C)   heart.
D)   teeth.
E)   urinary bladder.F) A) and B)
G) B) and E)

Question 8

Which of the following events near the end of pregnancy might indicate parturition is near?

Accepted Answer

A)   The cervix gradually constricts.
B)   The uterus begins regular contractions.
C)   The amniotic sac becomes edematous.
D)   The fetal heart rate increases to greater than 160 beats per minute.
E)   The cervix shrinks.F) B) and D)
G) All of the above

Question 9

A patent ductus arteriosus means that the _____ did not close.

Accepted Answer

A)   intraatrial septum
B)   intraventricular septum
C)   connection between the pulmonary trunk and the aorta
D)   connection between the inferior vena cava and the abdominal aorta
E)   umbilical arteries and veinsF) C) and E)
G) None of the above

Question 10

The male and female reproductive systems begin as an indifferent stage. If testosterone is present, which of the following occurs?

Accepted Answer

A)   The paramesonephric duct forms the vagina.
B)   The mesonephric ducts form the ductus deferens.
C)   The mesonephric ducts atrophy.
D)   The paramesonephric ducts enlarge to form the scrotum.
E)   The paramesonephric duct atrophies.F) A) and E)
G) C) and E) B

Question 11

-The picture shows a mature placenta and fetus. What does "B" represent?

Accepted Answer

A)   umbilical vein
B)   umbilical arteries
C)   umbilical cord
D)   placenta
E)   endometriumF) A) and B)
G) A) and C)

Question 12

A display of the chromosomes of a somatic cell during metaphase of mitosis is the

Accepted Answer

A)   karyotype.
B)   autosome.
C)   homolog.
D)   locus.
E)   genome.F) B) and D)
G) A) and B)

Question 13

Failure of the neural tube to close in the region of the head results in

Accepted Answer

A)   anencephaly.
B)   ventricular enlargement.
C)   cleft palate.
D)   soft spots on the skull.
E)   hydrocephaly.F) A) and E)
G) C) and E)

Question 14

Some epiblast cells migrate and emerge between the epiblast and endoderm as a new germ layer called the

Accepted Answer

A)   yolk sac.
B)   mesoglia.
C)   notochord.
D)   mesoderm.
E)   primitive streak.F) All of the above
G) None of the above

Question 15

Puberty in females occurs _____ than in males.

Accepted Answer

A)   earlier
B)   later
C)   at the same timeD) A) and C)
E) A) and B)

Question 16

Germ layers form during the ____ period while organ systems mature during the ____ period.

Accepted Answer

A)   embryonic; fetal
B)   prenatal; neonatal
C)   germinal; embryonic
D)   germinal; fetal
E)   fetal; germinalF) A) and B)
G) A) and E) D

Question 17

A person's height, intelligence, eye color, and skin color are examples of

Accepted Answer

A)   incomplete dominance.
B)   complete dominance.
C)   complete recessiveness.
D)   codominance.
E)   polygenic traits.F) A) and B)
G) A) and C)

Question 18

The inner cell mass of the blastocyst

Accepted Answer

A)   consists of yolk-filled storage cells.
B)   contains cells that will form the embryo.
C)   represents the future placenta.
D)   will form the zona pellucida.
E)   contains cells that are discarded.F) B) and E)
G) A) and B)

Question 19

One component of brain death is defined as

Accepted Answer

A)   loss of reflexes.
B)   lack of spontaneous movement.
C)   a flat electroencephalogram (EEG) .D) All of the above
E) A) and C)

Question 20

Which of the following is derived from endoderm?

Accepted Answer

A)   brain
B)   muscle
C)   epidermis of the skin
D)   lining of the digestive tract
E)   cardiovascular systemF) A) and B)
G) B) and E)

Exam 29: Development, Growth, Aging, and Genetics

-The picture shows a full term pregnancy. What does "A" represent?

Correct AnswerverifiedB

Which of the following statements concerning the digestive system of a newborn is true?

Correct AnswerverifiedShow Answer

Which of the following is correctly matched?

Correct AnswerverifiedShow Answer

Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin α\alphaα 6 β\betaβ 1. This is called the

Correct AnswerverifiedShow Answer

Most congenital birth defects are caused by

Correct AnswerverifiedShow Answer

The adult kidney develops from the

Correct AnswerverifiedShow Answer

Damage to the mesoderm during embryological development would affect the formation of the

Correct AnswerverifiedShow Answer

Which of the following events near the end of pregnancy might indicate parturition is near?

Correct AnswerverifiedShow Answer

A patent ductus arteriosus means that the _____ did not close.

Correct AnswerverifiedShow Answer

The male and female reproductive systems begin as an indifferent stage. If testosterone is present, which of the following occurs?

Correct AnswerverifiedB

-The picture shows a mature placenta and fetus. What does "B" represent?

Correct AnswerverifiedShow Answer

A display of the chromosomes of a somatic cell during metaphase of mitosis is the

Correct AnswerverifiedShow Answer

Failure of the neural tube to close in the region of the head results in

Correct AnswerverifiedShow Answer

Some epiblast cells migrate and emerge between the epiblast and endoderm as a new germ layer called the

Correct AnswerverifiedShow Answer

Puberty in females occurs _____ than in males.

Correct AnswerverifiedShow Answer

Germ layers form during the ____ period while organ systems mature during the ____ period.

Correct AnswerverifiedD

A person's height, intelligence, eye color, and skin color are examples of

Correct AnswerverifiedShow Answer

The inner cell mass of the blastocyst

Correct AnswerverifiedShow Answer

One component of brain death is defined as

Correct AnswerverifiedShow Answer

Which of the following is derived from endoderm?

Correct AnswerverifiedShow Answer

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B

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Depolarization of the oocyte plasma membrane occurs when the first sperm attaches to the integrin $\alpha$ 6 $\beta$ 1. This is called the

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B

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Germ layers form during the period while organ systems mature during the period.

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D

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