Pregnancy and Inheritance Questions

Helpfulness: 0
Set Details Share
created 5 years ago by icantquit
232 views
updated 5 years ago by icantquit
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

The three stages of true labor, in order of occurrence, are [a], [b], and [c].

Correct Answers for: a dilation
Correct Answers for: b expulsion
Correct Answers for: c placental

2

Hormones produced by the ___ are responsible for maintaining the pregnancy during the first 3–4 months.

Correct Answers for: corpus luteum

3

The secretion responsible for preventing degeneration of the corpus luteum is ___ produced by the trophoblast.

Correct Answers for: human chorionic gonadotropin (hCG)

4

Indicate the germ layers responsible for development of the following structures: (a) muscle, bone, and peritoneum: [1] ; (b) nervous system and epidermis: [2]; (c) epithelial linings of respiratory and gastrointestinal tracts: [3] .

Correct Answers for: 1 mesoderm
Correct Answers for: 2 ectoderm
Correct Answers for: 3 endoderm

5

Labor is an example of a negative feedback cycle that ends with the birth of the infant.

Correct Answer: False
Response Feedback:
Labor is an example of a POSTIVE feedback cycle that ends with the birth of the infant.

6

Which of the following are true? (1) During implantation the outer cell mass of the blastocyst orients toward the endometrium. (2) The decidua basalis provides glycogen and lipids for the developing fetus. (3) The decidua parietalis becomes the maternal part of the placenta. (4) During implantation, the syncytiotrophoblast secretes enzymes that allow the blastocyst to penetrate the uterine lining. (5) After fetal delivery, the decidua separates from the endometrium and is released from the uterus.

Correct Answer:
2, 4, and 5

Response Feedback:
(1) During implantation the outer cell mass of the blastocyst orients AWAY FROM the endometrium. (2) True (3) The decidua parietalis becomes the FETAL part of the placenta.(4) True(5) True

7

t/f
During implantation the outer cell mass of the blastocyst orients toward the endometrium.

f

8

t/f
The decidua basalis provides glycogen and lipids for the developing fetus.

t

9

t/f
The decidua parietalis becomes the maternal part of the placenta.

f

10

t/f
During implantation, the syncytiotrophoblast secretes enzymes that allow the blastocyst to penetrate the uterine lining.

t

11

t/f
After fetal delivery, the decidua separates from the endometrium and is released from the uterus.

t

12

t/f
During implantation the outer cell mass of the blastocyst orients away from the endometrium.

t

13

t/f
The decidua parietalis becomes the FETAL part of the placenta.

t

14

Which of the following are maternal changes that occur during pregnancy? (1) altered pulmonary function; (2) increased stroke volume, cardiac output, and heart rate, and decreased blood volume; (3) weight gain; (4) increased gastric motility, causing a delay in gastric emptying time; (5) edema and possible varicose veins.

Correct Answer:
1, 3, and 5

Response Feedback:
(1) altered pulmonary function; (2) increased stroke volume, cardiac output, and heart rate, and INCREASED blood volume; (3) weight gain; (4) DECREASED gastric motility, causing a delay in gastric emptying time; (5) edema and possible varicose veins.

15

Which of the following statements is correct?

Correct Answer:
(b) Occasionally an error in meiosis called nondisjunction results in an abnormal number of chromosomes.

Response Feedback:
(a) Normal traits SOMETIMES dominate over abnormal traits.

(b) Occasionally an error in meiosis called nondisjunction results in an abnormal number of chromosomes.

(c) The FATHER always determines the sex of the child because she has either an X or Y gene in her oocytes.

(d) Most patterns of inheritance are MULTIFACTORIAL INHERITANCE.

(e) Genes CAN BE AFFECTED BY outside influence such as chemicals or radiation.

16

Which of the following are true concerning fertilization? (1) The sperm first penetrate the zona pellucida and then the corona radiata. (2) The binding of specific membrane proteins in the sperm head to ZP3 causes the release of acrosomal contents. (3) Sperm are able to fertilize the oocyte within minutes after ejaculation. (4) Depolarization of the cell membrane of the secondary oocyte inhibits fertilization by more than one sperm. (5) The oocyte completes meiosis II after fertilization.

Correct Answer:
2, 4, and 5

Response Feedback:
(1) The sperm first penetrate the corona radiata and then the zona pellucida. (2) The binding of specific membrane proteins in the sperm head to ZP3 causes the release of acrosomal contents. (3) Sperm are able to fertilize the oocyte within seconds after ejaculation. (4) Depolarization of the cell membrane of the secondary oocyte inhibits fertilization by more than one sperm. (5) The oocyte completes meiosis II after fertilization.

17

t/f
The sperm first penetrate the zona pellucida and then the corona radiata.

f

18

t/f
The binding of specific membrane proteins in the sperm head to ZP3 causes the release of acrosomal contents.

t

19

t/f
Sperm are able to fertilize the oocyte within minutes after ejaculation.

f

20

t/f
Depolarization of the cell membrane of the secondary oocyte inhibits fertilization by more than one sperm.

t

21

t/f
The oocyte completes meiosis II after fertilization.

t

22

t/f
The sperm first penetrate the corona radiata and then the zona pellucida.

t

23

t/f
Sperm are able to fertilize the oocyte within seconds after ejaculation.

t

24

Amniotic fluid (1) is derived entirely from a filtrate of maternal blood, (2) acts as a fetal shock absorber, (3) provides nutrients to the fetus, (4) helps regulate fetal body temperature, (5) prevents adhesions between the skin of the fetus and surrounding tissues.

Correct Answer:
2, 4, and 5

Response Feedback:
Amniotic fluid (1) is derived entirely from a filtrate of maternal AND FETAL blood, (2) acts as a fetal shock absorber, (3) DOES NOT provides nutrients to the fetus, (4) helps regulate fetal body temperature, (5) prevents adhesions between the skin of the fetus and surrounding tissues.

25

Which of the following structures develop during the fourth week after fertilization? (1) embryonic folding, (2) the neural tube, (3) otic placode (beginning of the ear), (4) beginning of the eyes, (5) upper and lower limb buds.

Correct Answer:
1, 2, 3, 4, and 5

26

a fluid-filled sphere of cells that enters the uterine cavity

6.
blastocyst

27

cells produced by cleavage

2.
blastomeres

28

the developing individual from week nine of pregnancy until birth

11.
fetus

29

the outer covering of cells of the blastocyst

5.
trophoblast

30

membrane derived from trophoblast

10.
chorion

31

early divisions of the zygote

1.
cleavage

32

a solid sphere of cells still surrounded by the zona pellicuda

3.
morula

33

event in which differentiation into the three primary germ layers occurs

8.
gastrulation

34

embryonic development of structures that will become the nervous system

9.
neurulation

35

the formation of blood vessels to support the developing embryo

4.
angiogenesis

36

result of the fusion of female and male pronuclei

7.
zygote

37

Match the following hormones with their descriptions:

stimulates the corpus luteum to continue production of progesterone and estrogens

C.
human chorionic gonadotropin

38

Match the following hormones with their descriptions:

increases the flexibility of the pubic symphysis and helps dilate the uterine cervix during labor

F.
relaxin

39

Match the following hormones with their descriptions:

secreted by the placenta; helps establish the timing of birth and increases the secretion of cortisol for fetal lung maturation

E.
corticotropin-releasing hormone

40

Match the following hormones with their descriptions:

helps prepare mammary glands for lactation; regulates certain aspects of maternal and fetal metabolism

B.
human chorionic somatomammotropin

41

Match the following hormones with their descriptions:

stimulates uterine contractions; responsible for the milk ejection reflex

A.
oxytocin

42

Match the following hormones with their descriptions:

promotes milk synthesis and secretion; inhibited by progesterone during pregnancy

D.
prolactin

43

the penetration of a secondary oocyte by a single sperm cell

3.
syngamy

44

fertilization of a secondary oocyte by more than one sperm

4.
polyspermy

45

the attachment of a blastocyst to the endometrium

5.
implantation

46

the fusion of the genetic material from a haploid sperm and a haploid secondary oocyte into a single diploid nucleus

1.
fertilization

47

the induction by the female reproductive tract of functional changes in sperm that allow them to fertilize a secondary oocyte

2.
capacitation

48

the examination of embryonic or fetal cells sloughed off into the amniotic fluid

6.
amniocentesis

49

an abnormal condition of pregnancy characterized by sudden hypertension, large amounts of protein in urine, and generalized edema

7.
preeclampsia

50

noninvasive test that can detect fetal neural tube defects

10.
maternal AFP test

51

the process of giving birth

8.
parturition

52

the period of time (about 6 weeks) during which the maternal reproductive organs and physiology return to the prepregnancystate

9.
puerperium

53

the control of inherited traits by the combined effects of many genes

7.
polygenic inheritance

54

the two alternative forms of a gene that code for the same trait and are at the same location on homologous chromosomes

3.
alleles

55

abnormal number of chromosomes due to failure of homologous chromosomes or chromatids to separate

14.
nondisjunction

56

inheritance based on genes that have more than two alternative forms; an example is the inheritance of blood type

6.
multiple-allele inheritance

57

a cell in which one or more chromosomes of a set is added or deleted

4.
aneuploid

58

refers to an individual with different alleles on homologous chromosomes

10.
heterozygous

59

traits linked to the X chromosome

8.
sex-linked inheritance

60

permanent inheritable change in an allele that produces a different variant of the same trait

13.
mutation

61

neither member of the allelic pair is dominant over the other, and the heterozygote has a phenotype intermediate between the homozygous dominant and the homozygous recessive

5.
incomplete dominance

62

refers to how the genetic makeup is expressed in the body; the physical or outward expression of a gene

2.
phenotype

63

a homozygous dominant, homozygous recessive, or heterozygous genetic makeup; the actual gene arrangement

1.
genotype

64

refers to a person with the same alleles on homologous chromosomes

9.
homozygous

65

inactivated X chromosome in females

16.
Barr body

66

heterozygous individuals who possess a recessive gene (but do not express it) and can pass the gene on to their offspring

11.
carriers

67

interchange of portions of nonhomologous chromosomes

15.
translocation

68

an allele that masks the presence of another allele and is fully expressed

12.
dominant trait

69

the embryonic membrane that entirely surrounds the embryo

3.
amnion

70

functions as an early site of blood formation; contains cells that migrate into the gonads and differentiate into the primitive germ cells

6.
yolk sac

71

becomes the principal part of the embryonic placenta; produces human chorionic gonadotropin

4.
chorion

72

modified endometrium after implantation has occurred; separates from the endometrium after the fetus is delivered

1.
decidua

73

contains the vascular connections between mother and fetus

9.
umbilical cord

74

the fetal portion is formed by the chorionic villi and the maternal portion is formed by the decidua basalis of the endometrium; allows oxygen and nutrients to diffuse from maternal blood into fetal blood

2.
placenta

75

serves as an early site of blood vessel formation

5.
allantois

76

finger-like projections of the chorion that bring maternal and fetal blood vessels into close proximity

8.
chorionic villi

77

plays an important role in induction whereby an inducing tissue stimulates the development of an unspecialized responding tissue into a specialized tissue

7.
notochord


Related pages


what does the thyroid gland secretescrotum containsa mixture of cyan and yellow pigments appearsnegative tollens testmuscles used for intramuscular injectionsorgans found in the peritoneal cavitycombining form for spinal cordto perceive greater detail a dolphin emits sounds ofwhich of the following is an example of cryptic colorationdescribe a biomemsa plateskenneth saladin anatomy and physiology 7th editionpasteur cell theorydefinition of dark adaptationdeath penalty procon orgdifference between hyperpnea and hyperventilationexplain photophosphorylation in terms of chemiosmosismastering biology chapter 1 answersblood anatomy quizprokaryotes essential genetic information is located in thethe sister chromatids separate during which stage of meiosissimple reflexeswhat is primary deviance and secondary deviancemany types of foraminiferans form a symbiotic relationship with _____on what basis are epithelial tissues classifiedcommon isotopes of sulfurorgan that secretes hormonessmooth er detoxificationcontain cerebrospinal fluidbrain diagram labelledphlebotomy tubes order of drawwhat is efferent neuronsgriffith experiment dnaquiz medical terminologyhow do you pronounce the spanish alphabetprepositions flashcardsfor what purpose might a karyotype be preparedthe corpus callosum is composed ofwhat is the meningescap lac operonwhat is oogenesis in humanshow many phalanges are in the handlarge intestine diameterwhat differentiates an autonomic reflex from a somatic reflexan abnormal p wave could be indicative ofsubscapularis origin insertion actionnegative feedback anatomyafi 36 2101marine biome weatherrelative frequency chartwhich type of lymphocyte attacks and destroys infected body cellswhat is chemoheterotrophrole of loop of henlelinear electron flow in photosynthesiswhere does hester prynne liveptcb exam 2014apophyseal joints cervical spinechemical reactions of copper and percent yieldprecursor to vitamin abrain diagram lobesfibrous cartilaginous and synovial jointshow many protons in goldin c3 plants the conservation of water promotescardiac systole and diastoleaquatic biome locationsthe presence of chondrocytes and elastic fibers indicateswhich of the following statements is true concerning catabolic pathwaysurine chemical compositionductless endocrine glands6th grade math glossarythe most complex endocrine responses involve thesurgical technologist definition