Feedback True or False Quiz

Please answer all questions. The numbers at the end of each question refer to the textbook page where the question topic is discussed.

1		Freshly ejaculated sperm are infertile and must be in the female reproductive tract several hours before they can fertilize an ovum. (756)
			A)	True
			B)	False
2		An acrosomal reaction must take place before a sperm can fertilize a secondary oocyte. (756)
			A)	True
			B)	False
3		Following ovulation, an egg cell immediately completes its second meiotic division. (756)
			A)	True
			B)	False
4		Chromosome pairing follows fertilization within minutes so that a diploid number is established. (756)
			A)	True
			B)	False
5		The pre-embryonic period is initiated upon ovulation. (756)
			A)	True
			B)	False
6		The trophoblast gives rise to a portion of the placenta. (757)
			A)	True
			B)	False
7		Implantation of the zygote occurs between the seventh and tenth days following conception. (757)
			A)	True
			B)	False
8		The effect of human chorionic gonadotropin (hCG) is identical to that of LH in maintaining the corpus luteum. (759)
			A)	True
			B)	False
9		All of the visceral organs in the thoracic and abdominal cavities derive from the endoderm germ layer. (760)
			A)	True
			B)	False
10		During amniocentesis, a small sample of fetal tissue is excised so that it can be examined for genetic abnormalities. (763)
			A)	True
			B)	False
11		The human yolk sac contains nutritive yolk to sustain the embryo until the placenta is formed. (764)
			A)	True
			B)	False
12		Blood is produced for the embryo by the chorion until the liver forms during the sixth week. (764)
			A)	True
			B)	False
13		The chorion is an extraembryonic membrane involved in the formation of the placenta. (764)
			A)	True
			B)	False
14		Oxygenated blood is transported from the placenta through the umbilical artery within the umbilicus and then to the fetal heart. (767)
			A)	True
			B)	False
15		Antidepressant drugs are safe to give to a woman in labor because they cannot cross the placenta. (765)
			A)	True
			B)	False
16		The placenta secretes both steroid hormones and glycoprotein hormones. (765)
			A)	True
			B)	False
17		In order to protect a female embryo from being masculinized by the androgens secreted from the mother's adrenal glands, the placenta converts androgens into estrogen. (766)
			A)	True
			B)	False
18		During the third week, the primitive line gives rise to the notochord and intraembryonic mesoderm. (767)
			A)	True
			B)	False
19		Differentiation of the genitalia as a male or female is possible by the end of the seventh week of development. (772)
			A)	True
			B)	False
20		All of the structures of the body are formed and distinguishable at the beginning of the fetal period. (772)
			A)	True
			B)	False
21		Defecation and urination are physiological processes that do not occur prenatally. (772)
			A)	True
			B)	False
22		Although the heart becomes functional during the fourth week of development, it cannot be detected with a stethoscope until the sixteenth week. (772)
			A)	True
			B)	False
23		Quickening is the onset of labor. (773)
			A)	True
			B)	False
24		The normal gestation period is about 286 days, or 300 days from the first day of the last menstrual period. (775)
			A)	True
			B)	False
25		The expulsion stage of labor is usually the longest stage and may last from 8 to 24 hours. (775)
			A)	True
			B)	False
26		Forceful uterine contractions during the placental stage constrict the uterine blood vessels to prevent hemorrhage. (775)
			A)	True
			B)	False
27		The heart of a newborn appears to be underdeveloped in size in respect to the thoracic cavity and compensates by beating 120 to 160 times per minute. (776)
			A)	True
			B)	False
28		Dehydration is a serious threat to newborns because the kidneys are unable to excrete concentrated urine. (776)
			A)	True
			B)	False
29		Prematurity is defined by due (delivery) date rather than by neonatal body weight. (777)
			A)	True
			B)	False
30		Postmature babies are those born two or more weeks after the due date and frequently weigh significantly more than babies born at term. (777)
			A)	True
			B)	False
31		A full-term child will generally double its birth weight by five months and triple it in a year. (777)
			A)	True
			B)	False
32		Significant amounts of sex hormones appear in the blood of females by the age of ten years and in males by the age of eleven years. (779)
			A)	True
			B)	False
33		The phenotype is an expression of the genotype. (783)
			A)	True
			B)	False
34		A person's phenotype for a certain trait is an accurate indicator of his or her genotype for that same trait. (783)
			A)	True
			B)	False
35		The term HYBRID refers to an offspring descended from parents who have different genotypes. (784)
			A)	True
			B)	False
36		In sex-linked inheritance, a male child is more likely to have the sex-linked characteristic than a female child is. (784)
			A)	True
			B)	False
37		Hemophilia is a sex-linked condition caused by a recessive allele. (785)
			A)	True
			B)	False
38		In monozygotic twins, there are two amnions, one chorion, and one placenta. (786)
			A)	True
			B)	False
39		Triplets cannot develop from the same ovum. (786)
			A)	True
			B)	False
40		Ultrasonography and fetoscopy both use sound waves to examine the fetus. (787)
			A)	True
			B)	False
41		Teratology is the branch of developmental biology concerned with abnormal development and congenital malformations. (789)
			A)	True
			B)	False