Question 1

Implantation usually begins at about the end of the first ________ of development.

Accepted Answer

A)   day
B)   week
C)   month
D)   trimesterE) B) and D)
F) B) and C)

Question 2

Someone with the genotype associated with hereditary pancreatitis might not show symptoms of the disorder because the disorder does not have a ________ level of 100%.

Accepted Answer

A)   dominance
B)   penetrance
C)   polygenicity
D)   homozygous
E)   sex-linkageF) None of the above
G) B) and D)

Question 3

Gastrulation results in the formation of a(n)

Accepted Answer

A)   morula.
B)   embryo.
C)   blastocyst.
D)   trophoblast.
E)   umbilical cord.F) A) and D)
G) A) and E)

Question 4

When pregnant, a woman has an increased sensitivity to the hormone angiotensin.

Accepted Answer

A) True 
 B)False

Question 5

The hypoblast layer of the blastodisc is made of

Accepted Answer

A)   columnar cells and forms during the morula stage.
B)   columnar cells and forms during gastrulation.
C)   cuboidal cells and forms during the fetal period.
D)   cuboidal cells and forms during the pre-embryonic period.E) A) and B)
F) B) and D)

Question 6

Which is the larger of the sex chromosomes and is more commonly involved in sex-linked inheritance?

Accepted Answer

A)   The X chromosome
B)   The Y chromosomeC) A) and B)
D) undefined

Question 7

Which type of gamete remains viable for a longer time after it enters the female reproductive tract?

Accepted Answer

A)   Sperm
B)   EggC) A) and B)
D) undefined

Question 8

Cleavage occurs during

Accepted Answer

A)   the fetal period.
B)   the pre-embryonic period.
C)   organogenesis.
D)   the embryonic period.
E)   fertilization.F) A) and B)
G) A) and C)

Question 9

Edema and varicose veins in the lower extremities sometimes develop in the third trimester of a pregnancy due to

Accepted Answer

A)   decreased cardiac output.
B)   elevated blood pressure.
C)   compression of abdominal blood vessels.
D)   elevated hematocrit.E) All of the above
F) B) and D)

Question 10

During pregnancy, the mother's

Accepted Answer

A)   cardiac output and hematocrit rise.
B)   cardiac output and hematocrit fall.
C)   cardiac output rises and hematocrit falls.
D)   cardiac output falls and hematocrit rises.E) B) and C)
F) None of the above

Question 11

Describe the causes and effects of gastrointestinal ailments during pregnancy.

Accepted Answer

Common complaints are nausea, heartburn,...

Question 12

The future head and buttocks regions of the embryo are facilitated by the process of ________ folding.

Accepted Answer

A)   cleavage
B)   cephalocaudal
C)   transverse
D)   amitotic
E)   chorionicF) B) and C)
G) B) and D)

Question 13

To prepare for the strain of labor and delivery, female reproductive hormones cause ligaments of pelvic joints to tighten.

Accepted Answer

A) True 
 B)False

Question 14

Although pregnancies are highly variable, morning sickness is most commonly experienced in the ________ trimester.

Accepted Answer

A)   first
B)   second
C)   thirdD) None of the above
E) All of the above

Question 15

Human placental lactogen ________ the effects of insulin and causes a pregnant woman's tissues to metabolize ________ glucose.

Accepted Answer

A)   facilitates; more
B)   facilitates; less
C)   inhibits; more
D)   inhibits; lessE) None of the above
F) A) and D)

Question 16

Human chorionic gonadotropin is secreted from cells of the

Accepted Answer

A)   morula.
B)   embryoblast.
C)   syncytiotrophoblast.
D)   zygote.E) A) and D)
F) A) and C)

Question 17

Release of breast milk occurs when the hormone ________ stimulates ________ cells to contract.

Accepted Answer

A)   prolactin; mechanoreceptor
B)   oxytocin; myoepithelial
C)   estrogen; areolar
D)   prolactin; mammary acini
E)   oxytocin; suspensoryF) B) and D)
G) C) and E)

Question 18

Upon a newborn's first breath, pulmonary arterioles

Accepted Answer

A)   constrict.
B)   dilate.C) A) and B)
D) undefined

Question 19

Growth of the functional layer and prevention of menstruation during pregnancy are brought about by secretion of

Accepted Answer

A)   relaxin.
B)   progesterone.
C)   cortisol.
D)   human chorionic thyrotropin.
E)   human placental lactogen.F) A) and C)
G) B) and C)

Question 20

Polyspermy results in the production of monozygotic twins.

Accepted Answer

A) True 
 B)False

Exam 29: Development, Pregnancy, and Heredity

Polyspermy results in the production of monozygotic twins.

Correct AnswerverifiedShow Answer

Although pregnancies are highly variable, morning sickness is most commonly experienced in the ________ trimester.

Correct AnswerverifiedShow Answer

When pregnant, a woman has an increased sensitivity to the hormone angiotensin.

Correct AnswerverifiedShow Answer

Gastrulation results in the formation of a(n)

Correct AnswerverifiedShow Answer

Human placental lactogen ________ the effects of insulin and causes a pregnant woman's tissues to metabolize ________ glucose.

Correct AnswerverifiedShow Answer

Cleavage occurs during

Correct AnswerverifiedShow Answer

The future head and buttocks regions of the embryo are facilitated by the process of ________ folding.

Correct AnswerverifiedShow Answer

Upon a newborn's first breath, pulmonary arterioles

Correct AnswerverifiedShow Answer

Edema and varicose veins in the lower extremities sometimes develop in the third trimester of a pregnancy due to

Correct AnswerverifiedShow Answer

Release of breast milk occurs when the hormone ________ stimulates ________ cells to contract.

Correct AnswerverifiedShow Answer

The hypoblast layer of the blastodisc is made of

Correct AnswerverifiedShow Answer

To prepare for the strain of labor and delivery, female reproductive hormones cause ligaments of pelvic joints to tighten.

Correct AnswerverifiedShow Answer

Describe the causes and effects of gastrointestinal ailments during pregnancy.

Correct AnswerverifiedCommon complaints are nausea, heartburn,...View AnswerShow Answer

Which is the larger of the sex chromosomes and is more commonly involved in sex-linked inheritance?

Correct AnswerverifiedShow Answer

Which type of gamete remains viable for a longer time after it enters the female reproductive tract?

Correct AnswerverifiedShow Answer

Growth of the functional layer and prevention of menstruation during pregnancy are brought about by secretion of

Correct AnswerverifiedShow Answer

Someone with the genotype associated with hereditary pancreatitis might not show symptoms of the disorder because the disorder does not have a ________ level of 100%.

Correct AnswerverifiedShow Answer

During pregnancy, the mother's

Correct AnswerverifiedShow Answer

Implantation usually begins at about the end of the first ________ of development.

Correct AnswerverifiedShow Answer

Human chorionic gonadotropin is secreted from cells of the

Correct AnswerverifiedShow Answer

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Human placental lactogen the effects of insulin and causes a pregnant woman's tissues to metabolize glucose.

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Release of breast milk occurs when the hormone stimulates cells to contract.

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Common complaints are nausea, heartburn,...
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