Question 1

Which of the developmental stages shown in the diagram is a blastocyst?

Accepted Answer

A)  C only
B)  D only
C)  E only
D)  C and D
E)  D and EF) C) and D)
G) A) and C) E

Question 2

Alcohol in maternal blood does not cross the placenta into the fetal circulation.

Accepted Answer

A) True 
 B)False

Question 3

Describe the three stages of true labor.

Accepted Answer

1. The stage of dilation is the time fro...

Question 4

The regulatory chemical found in high quantities in breast milk that helps inhibit GI tract inflammation in the newborn is

Accepted Answer

A)  interleukin-10
B)  IgA
C)  fibronectin
D)  bifidus factor
E)  retinoic acidF) B) and D)
G) B) and E)

Question 5

Unspecialized cells that have the ability to continue dividing for long periods of time and eventually become specialized cells are called

Accepted Answer

A)  trophoblasts
B)  stem cells
C)  inner mass cells
D)  differentiated cells
E)  prenatal cellsF) None of the above
G) A) and B)

Question 6

If separation of monozygotic twins does not occur until after the first week of development, conjoined twins are likely to be produced.

Accepted Answer

A) True 
 B)False

Question 7

Monozygotic twins develop from a single fertilized ovum.

Accepted Answer

A) True 
 B)False

Question 8

Genes that control the same inherited trait and occupy the same position on homologous chromosomes are called

Accepted Answer

A)  autosomes
B)  alleles
C)  dominant
D)  recessive
E)  homologsF) B) and E)
G) B) and D)

Question 9

Which of the following conditions is an inherited sex-linked trait?

Accepted Answer

A)  Huntington's disease
B)  diabetes insipidus
C)  cystic fibrosis
D)  red/green color blindness
E)  PKUF) A) and B)
G) C) and D) D

Question 10

Which of the following is the correct order of developmental stages?

Accepted Answer

A)  zygote - morula - blastocyst - embryo - fetus - neonate
B)  neonate - zygote - morula - blastocyst - embryo - fetus
C)  zygote - blastocyst - morula - embryo - fetus - neonate
D)  morula - zygote - blastocyst - embryo - fetus - neonate
E)  zygote - morula - blastocyst - fetus - embryo - neonateF) B) and D)
G) A) and B)

Question 11

The term neonatal period refers to the first ___ days after birth.

Accepted Answer

A)  40
B)  28
C)  36
D)  12
E)  8F) B) and C)
G) C) and D)

Question 12

The spinal cord and brain develop from the neural tube.

Accepted Answer

A) True 
 B)False

Question 13

The structures labeled A on both diagrams are called

Accepted Answer

A)  amniotic cavities
B)  chorionic villi
C)  decidua basilus
D)  intervillous spaces
E)  yolk sac vestigesF) B) and E)
G) A) and E)

Question 14

Embryology refers to the study of development from the fertilized egg through the _____ week of pregnancy.

Accepted Answer

A)  second
B)  fifth
C)  eighth
D)  ninth
E)  tenthF) None of the above
G) A) and C) C

Question 15

By the beginning of the _____, the placenta consists of two distinct parts including a fetal portion of chorionic villi and a maternal portion formed by the endometrium.

Accepted Answer

A)  fourth week
B)  eighth week
C)  twelfth week
D)  second week
E)  first weekF) None of the above
G) B) and E)

Question 16

Some types of sudden movements during exercise are difficult for pregnant women because the hormone called _____ causes certain joints, like the pubic symphysis, to become less stable.

Accepted Answer

A)  inhibin
B)  progesterone
C)  relaxin
D)  placental lactogen
E)  chorionic gonadotropinF) B) and D)
G) All of the above

Question 17

Before a sperm cell can fertilize an ovum, it has to undergo _____, which is a process involving a series of functional changes that occur inside the female reproductive tract.

Accepted Answer

A)  capacitation
B)  cleavage
C)  somatic cell division
D)  attenuation
E)  maturationF) D) and E)
G) A) and C)

Question 18

Which of the following embryonic membranes forms the fetal portion of the placenta?

Accepted Answer

A)  endoderm
B)  chorion
C)  mesenchyme
D)  allantois
E)  amnionF) A) and E)
G) B) and D)

Question 19

A recessive genetic condition that results from the lack of a functional enzyme for the conversion of phenylalanine into tyrosine is called

Accepted Answer

A)  PKU
B)  diabetes insipidus
C)  Huntington's disease
D)  hemophilia
E)  sickle cell anemiaF) A) and E)
G) C) and E)

Question 20

Which of the following statements accurately describe in vitro fertilization?

Accepted Answer

A)  A woman is artificially inseminated with her husband's semen.
B)  The husband's semen is used to artificially inseminate a secondary oocyte donor.
C)  Fertilization of the oocyte by the sperm takes place in a laboratory dish.
D)  A woman is treated with FSH and is then artificially inseminated with donated semen.
E)  All of these answer selections describe aspects of in vitro fertilization.F) A) and B)
G) A) and C)

Exam 24: Development and Inheritance

Which of the developmental stages shown in the diagram is a blastocyst?

Correct AnswerverifiedE

Alcohol in maternal blood does not cross the placenta into the fetal circulation.

Correct AnswerverifiedShow Answer

Describe the three stages of true labor.

Correct Answerverified1. The stage of dilation is the time fro...View AnswerShow Answer

The regulatory chemical found in high quantities in breast milk that helps inhibit GI tract inflammation in the newborn is

Correct AnswerverifiedShow Answer

Unspecialized cells that have the ability to continue dividing for long periods of time and eventually become specialized cells are called

Correct AnswerverifiedShow Answer

If separation of monozygotic twins does not occur until after the first week of development, conjoined twins are likely to be produced.

Correct AnswerverifiedShow Answer

Monozygotic twins develop from a single fertilized ovum.

Correct AnswerverifiedShow Answer

Genes that control the same inherited trait and occupy the same position on homologous chromosomes are called

Correct AnswerverifiedShow Answer

Which of the following conditions is an inherited sex-linked trait?

Correct AnswerverifiedD

Which of the following is the correct order of developmental stages?

Correct AnswerverifiedShow Answer

The term neonatal period refers to the first ___ days after birth.

Correct AnswerverifiedShow Answer

The spinal cord and brain develop from the neural tube.

Correct AnswerverifiedShow Answer

The structures labeled A on both diagrams are called

Correct AnswerverifiedShow Answer

Embryology refers to the study of development from the fertilized egg through the _____ week of pregnancy.

Correct AnswerverifiedC

By the beginning of the _____, the placenta consists of two distinct parts including a fetal portion of chorionic villi and a maternal portion formed by the endometrium.

Correct AnswerverifiedShow Answer

Some types of sudden movements during exercise are difficult for pregnant women because the hormone called _____ causes certain joints, like the pubic symphysis, to become less stable.

Correct AnswerverifiedShow Answer

Before a sperm cell can fertilize an ovum, it has to undergo _____, which is a process involving a series of functional changes that occur inside the female reproductive tract.

Correct AnswerverifiedShow Answer

Which of the following embryonic membranes forms the fetal portion of the placenta?

Correct AnswerverifiedShow Answer

A recessive genetic condition that results from the lack of a functional enzyme for the conversion of phenylalanine into tyrosine is called

Correct AnswerverifiedShow Answer

Which of the following statements accurately describe in vitro fertilization?

Correct AnswerverifiedShow Answer

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1. The stage of dilation is the time fro...
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D

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C

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