140
Reproductive Systems
A. Multiple Choice
Key/
Page
No.
758
e
Which of the following is ovoviviparous?
a. produces a large number of young.
b. provides minimal nourishment to its offspring.
c. has low offspring survival.
d. demonstrates high parental involvement.
758
a. some sharks
b. all birds
c. guppies
d. rattlesnakes
e. all of these
762
d
Birds derive seminal fluid from the
a. colored feathers
b. body configuration
c. sexual weaponry
d. hair distribution
e. sensory sensilla
762
a. seminiferous tubules.
b. vasa efferentia.
c. vas deferens.
d. seminiferous tubules and vasa efferentia.
e. seminiferous tubules and vas deferens.
764
a. can be found in certain insects.
b. prevents semen from escaping from the female reproductive tract.
c. lasts until the offspring are born.
d. can be found in certain insects and prevents semen from escaping the female
reproductive tract.
e. all of these.
141
764
c
Juvenille hormone (JH)
a. ovariole
b. ovipositor
c. spermatophore
d. germarium
e. spermatheca
765
b
Gametogenesis is accomplished through
a. is involved in oogenesis.
b. is involved in vitellogenesis.
c. is involved in oogenesis and vitellogenesis.
d. is not involved in either of these.
765
a. mitosis.
b. meiosis.
c. binary fission.
d. mitosis and meiosis.
e. all of these.
767
a. genotypic sex.
b. gonadal sex.
c. the presence or absence of the Y chromosome.
d. the presence or absence of the X chromosome.
e. the presence or absence of specific hormones.
767
development?
a. development of male organs
b. development of Wolffian ducts
c. degeneration of Mullerian ducts
d. development of female organs
e. none of these
772
a. promoting the descent of testes.
b. maintenance of the reproductive tract.
c. controlling gonadotropin secretion.
d. all of these.
773
a. stimulates bone growth.
b. prevents bone growth by stimulating the closure of the growth plates.
c. has an effect on aggression in males.
d. two of these.
e. all of these.
142
775
a. an enzyme containing vesicle.
b. responsible for lysing the outer egg covering.
c. a derivative of the golgi.
d. all of these.
775,
776
a. are epithelial cells.
b. span the distance from the outer membrane of the tubule to the lumen.
c. are joined by tight junctions.
d. form gap junctions with the developing sperm.
e. all of these.
779
b
Primary oocytes are
a. prostate gland
b. vesicular glands
c. bulbourethral glands
d. seminal vesicles
786
a. haploid.
b. diploid.
c. anovulatory.
d. released from the primary follicle.
787
a. after fertilization.
b. before ovulation.
c. after ovulation.
d. in the fallopian tube.
e. in the uterus.
786
a. primary oocyte
b. polar body
c. granulosa cells
d. primary oocyte and polar body
e. primary oocyte and granulose cells
791
follicular cells and the formation of a mature follicle?
a. LH
b. FSH
c. GnRH
d. Oocyte maturation-inhibition substance
143
800
fertilization?
a. allurin
b. inhibin
c. fertilin
d. esstradiol
e. none of these
b
The LH surge associated with ovulation is triggered by
791
a. a rise in progesterone levels.
b. a positive feedback cycle with estrogen.
c. a negative feedback cycle with FSH.
d. changes in the follicle as it transitions to the corpus luteum.
a
22.
Which of the following hormones passes the blood brain barrier and is converted to
777
estradiol?
a. testosterone
b. androgen
c. aromatase
d. estrogen
803
c
24.
What is the importance of cytoplasmic bridges formed between spermatocytes?
a. is blocked by Fas ligand binding to cytotoxic T cells causing apoptosis of these
cells.
b. is blocked by the destruction of tryptophan.
c. is blocked by an increase in the number of regulatory T cells.
d. all of these.
775
a. X bearing sperm cannot produce all cell products necessary for survival of the
cell.
b. Y bearing cells have a greater amount of chromosomes.
c. They permit cytoplasmic exchange between the cells.
d. All of these.
777
a. Sertoli cells.
b. androgen binding protein.
c. follicular cells.
d. Leydig cells.
e. the hypothalamus.
144
779
a. provides fibrinolysin
b. secretion of prostaglandins
c. fructose suppliers
d. provides the majority of semen volume
e. secretion of fibrinogen
786
a. lactation
b. sexual receptiveness
c. ova maturation
d. sperm transport
e. all of these
785
a. EDCs
b. androgen
c. phsytoestrogen
d. EDCs and androgen
e. EDCs and phystoestrogen
784
a. occurs in mammals.
b. is also referred to as an animal in heat.
c. refers to the events that occur in the ovary leading up to and including ovulation.
d. lasts about 28 days.
e. none of these.
790
a. maturing follicles
b. reduced secretion of FSH
c. corpus luteum
d. ovulatory follicle
e. formation of antrum
791
a. initiate local prostaglandin production.
b. stimulate the production of the Graafian follicle.
c. end estrogen production by the follicular cell.
d. reinitiate meiosis.
e. trigger differentiation of follicular cells to luteal cells.
145
794
a. environmental cues.
b. day length.
c. pheromones.
d. all of these.
e. none of these.
795
a. LH
b. GnRH
c. VLDL
d. AVT
e. GTH-2
797
a. multiple spawners; prolonged season
b. multiple spawners; short season
c. single spawners; prolonged season
d. single spawners, short season
e. none of these
798
a. GTH-1
b. MIH
c. GTH-2
d. AVT
e. GnRH
797
a. GTH-1
b. MIH
c. GTH-2
d. AVT
e. GnRH
805
a. placental lactogen
b. chorionic gonadotropin
c. Progesterone
d. estrogen
e. PTHrp
146
802
a. morula
b. blastula
c. gastrula
d. trophoblast
e. blastocoele
794
a. loosening the endometrial connective tissue which favors implantation.
b. preventing the initiation of the menstrual cycle.
c. inducing the production of progesterone receptors.
d. inducing growth of endometrial blood vessels.
e. inducing the endometrial glands to secrete glycogen for fetal development.
785
a. insecticides
b. food preservatives
c. plastic softeners
d. pesticides
e. all of these
B. True of False
758
759 survival.
764
772 pattern of hormone secretion occurs.
775 sperm development.
780
791
782
147
794
802 accomplishing implantation.
C. Matching (correct answers are aligned with each number; e.g., #1 matches with letter a)
C. Essay
Page No.
767 nonavian reptiles, urodele amphibians, and insects.
761 factors in animal reproduction.
776, 777 systems.
812 of mammals.
degeneration or formation as the corpus luteum of pregnancy.