Human Development & Heredity Quiz

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Which of the following is the latest stage of development?

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Blastocyst

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Which group is incorrect?

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Extraembryonic membranes: graafian follicle, chorion, yolk sac

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59 Terms

1
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Which of the following is the latest stage of development?

Blastocyst

2
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Which group is incorrect?

Extraembryonic membranes: graafian follicle, chorion, yolk sac

3
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Fertilization is most apt to occur when sexual intercourse takes place close to:

ovulation.

4
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Which of the following is most related to fertilization?

23 chromosomes plus 23 chromosomes

5
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Which of the following is true of parturition?

Both The fetus becomes a neonate and Refers to the birth process.

6
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Which of the following is most related to human chorionic gonadotropin (hCG)?

Corpus luteum

7
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Which of the following is an ovarian event?

Maturation of the graafian follicle

8
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Which of the following prevents the deterioration of the corpus luteum during early pregnancy?

Human chorionic gonadotropin

9
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Afterbirth refers primarily to which structure?

Placenta

10
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From week 3 to week 8, the baby-to-be is called a(n):

embryo.

11
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The blastocyst:

lives in the uterus.

12
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In addition to acting as an exchange site between the mother and fetus, the placenta also secretes:

estrogen and progesterone.

13
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Which of the following is most apt to develop in response to compression of the umbilical cord?

Fetal hypoxemia

14
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Which of the following is accomplished during the eighth month of fetal development?

Baby fattens up.

15
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Who or what determines the gender of the baby?

Father

16
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Which of the following is a disclike structure where the fetal and maternal circulations meet (baby eats, excretes, and breathes at this site)?

Placenta

17
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What is the name of the fine downy hair that covers the fetus?

Lanugo

18
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Which of the following is divided into trimesters?

Pregnancy

19
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With which word is fetal alcohol most associated?

Teratogen

20
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What is the hormonal basis of the pregnancy test?

Human chorionic gonadotropin (hCG)

21
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Which of the following is least characteristic of hCG?

Exerts an oxytoxic effect

22
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Which of the following best describes the amnion, chorion, yolk sac, and allantois?

: Extraembryonic membranes

23
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A mother-to-be infected with the rubella virus gives birth to a child with multiple birth defects. Which of the following is descriptive of the defects?

Congenital

24
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Which of the following is the first event?

Implantation

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What is the baby-to-be called after 9 weeks of development?

Fetus

26
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The fimbriae sweep the ovum into which structure immediately following ovulation?

Fallopian tube

27
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Which of the following literally means “monster-producing”?

Teratogenic

28
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What term describes the ectoderm, mesoderm, and endoderm?

Primary germ layers

29
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How is a child with X and Y chromosomes best described?

Male

30
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In the later stages of pregnancy, most of the mother’s estrogen and progesterone comes from the:

placenta.

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Which of the following is least related to the sex chromosomes?

Autosomes

32
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Which group is incorrect?

Embryonic structures: zygote, blastomere, morula, blastocyst

33
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What “lives” in the fallopian tube for a brief period of time?

A zygote

34
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Which of the following is most associated with organogenesis?

Embryonic period

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Which of the following describes the consequence of this event: two ova are fertilized by two different sperm?

Dizygotic twins

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Which of these hormones is released in response to suckling and activation of the hypothalamus and neurohypophysis?

Oxytocin

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Which of the following is most descriptive of a zygote?

Fertilized ovum

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Which of the following is characterized by quickening, lanugo, and vernix caseosa?

Fetus

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Which of the following is formed when the chorionic villi burrow into the endometrial lining?

Placenta

40
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Which of the following is true regarding lactation?

Suckling stimulates the sensory nerves of the milk let-down reflex.

41
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Which of the following is (are) most associated with the following: areola, suspensory ligaments, lactiferous ducts, and alveolar glands?

Breasts

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Which group is incorrect?

Stages of labor: dilation, expulsion, lactation

43
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The conversion of the corpus luteum to the corpus albicans

is characteristic of the nonpregnant state.

44
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This structure carries oxygenated blood from the placenta to the fetus.

Umbilical vein

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Which cream cheeselike substance is secreted by baby’s sebaceous glands and protects the skin from the amniotic fluid?

Vernix caseosa

46
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Which group is incorrect?

Stages of labor: dilation, expulsion, placental, embryonic

47
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What is the name of the developmental process that refers to the shaping of the cell cluster?

Morphogenesis

48
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Which of the following is an example of nondisjunction?

Down syndrome

49
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Which word refers to milk production by the mammary glands?

Lactation

50
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Which hormone is secreted by the trophoblastic cells during implantation and helps preserve the corpus luteum?

hCG

51
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What is the outer extraembryonic membrane that forms fingerlike projections called villi and helps form the placenta?

Chorion

52
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The milk let-down reflex is most associated with:

oxytocin.

53
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Which of the following develops first?

Zygote

54
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Which structure is commonly called the bag of water (it breaks prior to delivery and often signals the onset of labor)?

Amniotic sac

55
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Which of the following is least true of prolactin?

Plays the primary role in the milk let-down reflex.

56
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Which of the following is true of implantation?

It occurs within the uterus.

57
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Which of the following give(s) rise to the endoderm, mesoderm, and ectoderm?

Primary germ layers

58
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The chorionic villi sit in blood-filled endometrial spaces called:

the lacunae.

59
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Which hormone literally means “swift birth” and assists in labor?

Oxytocin