Question 1

Twins that result from two different ova are called ________.

Accepted Answer

dizygotic ...

Question 2

The ectoderm forms

Accepted Answer

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

Question 3

By day 12 of embryonic development,mesoderm begins to form through

Accepted Answer

A)  embryolization.
B)  gastrulation.
C)  mitosis.
D)  meiosis.
E)  None of the answers are correct.F) B) and C)
G) All of the above

Question 4

All of the following occur during pregnancy,except that

Accepted Answer

A)  a woman's respiratory rate and tidal volume increase.
B)  maternal blood volume increases.
C)  maternal nutrient requirements increase.
D)  a woman's glomerular filtration rate increases.
E)  a woman's bladder capacity increases.F) B) and E)
G) A) and B)

Question 5

The gradual modification of anatomical structures during the period from conception to maturity is

Accepted Answer

A)  development.
B)  differentiation.
C)  embryogenesis.
D)  capacitation.
E)  All of the answers are correct.F) A) and E)
G) A) and C)

Question 6

A blastocyst is a(n)

Accepted Answer

A)  extraembryonic membrane.
B)  solid ball of cells.
C)  hollow ball of cells.
D)  portion of the placenta.
E)  origin of the urinary bladder.F) None of the above
G) A) and D)

Question 7

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.F) B) and E)
G) A) and E)

Question 8

Differentiation among blastomeres is the result of

Accepted Answer

A)  enzymes introduced by the sperm.
B)  hormones produced by the ovum.
C)  an unequal distribution of regulatory molecules in the cytoplasm of the ovum.
D)  regulator molecules supplied by cells of the uterus.
E)  enzymes activated by the sperm.F) A) and E)
G) B) and D)

Question 9

The infancy stage of life is considered to be over at

Accepted Answer

A)  age 1.
B)  age 2.
C)  6 months.
D)  1 month.
E)  18 months.F) D) and E)
G) B) and E)

Question 10

After ovulation,the layer of follicle cells that surround the unfertilized egg is called the

Accepted Answer

A)  zona pellucida.
B)  corona radiata.
C)  Graafian follicle.
D)  functional zone.
E)  tunica follicularis.F) B) and C)
G) A) and E)

Question 11

The inner cell mass of the blastocyst will

Accepted Answer

A)  form the placenta.
B)  form the morula.
C)  form the embryo.
D)  form blood vessels of the placenta.
E)  provide nutrients for early growth.F) C) and D)
G) A) and C)

Question 12

Which of the following are recognized classes of abortion?

Accepted Answer

A)  spontaneous
B)  therapeutic
C)  induced
D)  spontaneous and induced
E)  All of the answers are correct.F) A) and D)
G) A) and E)

Question 13

If an individual carries a pair of alleles that are the same,the individual is ________ for the trait.

Accepted Answer

A)  homologous
B)  homozygous
C)  heterozygous
D)  autosomous
E)  polygenicF) C) and D)
G) None of the above

Question 14

The part of the endometrium that covers the implanted embryo and lacks chorionic villi is the

Accepted Answer

A)  decidua parietalis.
B)  decidua albicans.
C)  decidua functionalis.
D)  decidua capsularis.
E)  decidua basalis.F) B) and C)
G) A) and D)

Question 15

The hormone that increases the flexibility of the pubic symphysis during pregnancy is

Accepted Answer

A)  luteinizing hormone.
B)  progesterone.
C)  human chorionic gonadotropin.
D)  human placental lactogen.
E)  relaxin.F) B) and D)
G) A) and B)

Question 16

Figure 29-1 Early Human Development
Use Figure 29-1 to answer the following question:
-Identify the stage labeled "8."

Accepted Answer

A)  zygote
B)  early morula
C)  blastomere
D)  trophoblast
E)  advanced morulaF) B) and C)
G) A) and D)

Question 17

The ________ chromosomes determine gender.

Accepted Answer

The answer of The ________ chromosomes determine gender....

Question 18

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

Accepted Answer

The answer of Placental functions are concentrated in a disc-shaped...

Question 19

Initially,the nutrients absorbed by the trophoblast easily reach the inner cell mass by simple

Accepted Answer

A)  osmosis.
B)  diffusion.
C)  peristalsis.
D)  ciliary action.
E)  convection.F) B) and D)
G) A) and D)

Question 20

Figure 29-1 Early Human Development
Use Figure 29-1 to answer the following question:
-Identify the stage labeled "12."

Accepted Answer

A)  zygote
B)  early morula
C)  blastocyst
D)  trophoblast
E)  late morulaF) None of the above
G) C) and D)

Exam 29: Development and Inheritance

The part of the endometrium that covers the implanted embryo and lacks chorionic villi is the

Correct AnswerverifiedShow Answer

The hormone that increases the flexibility of the pubic symphysis during pregnancy is

Correct AnswerverifiedShow Answer

The gradual modification of anatomical structures during the period from conception to maturity is

Correct AnswerverifiedShow Answer

By day 12 of embryonic development,mesoderm begins to form through

Correct AnswerverifiedShow Answer

The inner cell mass of the blastocyst will

Correct AnswerverifiedShow Answer

Initially,the nutrients absorbed by the trophoblast easily reach the inner cell mass by simple

Correct AnswerverifiedShow Answer

All of the following occur during pregnancy,except that

Correct AnswerverifiedShow Answer

Figure 29-1 Early Human Development Use Figure 29-1 to answer the following question: -Identify the stage labeled "12."

Correct AnswerverifiedShow Answer

Twins that result from two different ova are called ________.

Correct Answerverifieddizygotic ...View AnswerShow Answer

The infancy stage of life is considered to be over at

Correct AnswerverifiedShow Answer

Differentiation among blastomeres is the result of

Correct AnswerverifiedShow Answer

If an individual carries a pair of alleles that are the same,the individual is ________ for the trait.

Correct AnswerverifiedShow Answer

After ovulation,the layer of follicle cells that surround the unfertilized egg is called the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A blastocyst is a(n)

Correct AnswerverifiedShow Answer

Which of the following are recognized classes of abortion?

Correct AnswerverifiedShow Answer

The ________ chromosomes determine gender.

Correct AnswerverifiedShow Answer

The ectoderm forms

Correct AnswerverifiedShow Answer

Figure 29-1 Early Human Development Use Figure 29-1 to answer the following question: -Identify the stage labeled "8."

Correct AnswerverifiedShow Answer

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dizygotic ...
View Answer

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