Animal Reproduction Questionbank -3

Contributed by:
Dr. Gokuldas P P
Division of Animal Reproduction, I.V.R.I
E-mail: dasgokul2001@gmail.com

A. MULTIPLE CHOICE QUESTIONS
1. Unfertilized ovum remains for months in the oviduct of ——-species
a) sow b) mare c) ewe and doe d) bitch
2. In sows, maternal recognition of pregnancy is mainly due to the action of
a) Interferon tau b) Oxytocin c) Estrogen d) Prostaglandins
3. * Ovulation of “primary oocyte” occurs in
a) mare and bitch b) sow c) cow and doe d) all of the above
4. Centric type of nidation or implantation occurs in
a) rodents b) primates c) ruminants d) none of the above
5. Chemical structure of GnRH, a decapeptide, was determined by
a) Green and Harris b) Cole and Hart c) Gorski d) Shalley and Guellemin
6. Endometrial cups are formed from
a) chorionic girdle (fetal origin) b) maternal caruncles c) endometrium (maternal origin) d) none of the above
7. In sow, the villi near the endometrial glands are enlarged and specialized to form structures called
a) Hippomanes b) amniotic plaques c) areolae d) placentomes
8. Most of the developmental anomalies occur during
a) period of embryo b) period of ovum c) period of fetus d) during birth
9. Low land abortion or Marsh land abortion is due to
a) Fescue poisoning b) Leptospirosis c) nitrate poisoning d)None of the above
10. Transformation of secondary spermatocytes to spermatids
a) spermatocytegenesis b) spermateliosis c) spermiogenesis d) spermiation
11. Attachment of sperm to the ovum occurs initially at ——-segment of sperm head
a) apical b) post-acrosomal c) principal d) equitorial
12. Diffuse arm like structure of microtubules in the sperm tail are made of proteins
a) flactin b) tubulin c) spermosin d) dynein
13. In boars, seminal vesicles produces ———-which acts as chief osmotic pressure regulator in the semen
a) ergothionine b) citrate c) inocitol d) fructose
14. **pH of TRIS extender is
a) slightly acidic b) slightly alkaline c) neutral d) alkaline
ANSWERS:
1 b ; 2 c ; 3 a ; 4 c ; 5 d ; 6 a ; 7 c ; 8 a ; 9 c ; 10 b ;
11 d ; 12 d ; 13 c ; 14 a
• * ovulation of secondary oocyte in other species
• ** pH 6.8

B. FILL IN THE BLANKS
1) Ovary of mare is ———-shaped
2) Cervix is poorly defined in —————species
3) Progesterone concentration at oestrus fluctuates below———ng/ml
4) Irregular long oestrous cycles are mainly due to ————-
5) In———–species, ovulation occurs in metoestrus
6) *PgF2α has local effect on ovary in all species except———–
7) Fertile life span of stallion spermatozoa———-
8) Abnormal fertilization in which only male pronucleus develops——
9) In rabbits, ——-substance plays role in embryonic nutrition
10) ———-is a polypeptide hormone produced by ovary
11) hCG is produced by ————cells of the placenta
12) **Number of carbon atoms in estrogen————
13) ————- is a unique species in which epididymis can produce testosterone
14) Ultrasonography for pregnancy diagnosis is based on —-phenomenon
15) Maintenance of CL and Progesterone from CL are necessary throughout the gestation in ———
16) In cows, metoestral bleeding is associated with withdrawal of ——– hormone
17) Fertile life of ova in bitch ————
18) Shape of CL in mare———-
19) Cystic follicles are common in———
20) Potato soup pyometra or post service pyometra is characteristic of ————infection
21) Failure to expel the second polar body resulting in triploid zygote ———
22) ***In cow, mare and ewe, new CL is refractory for —–days of ovulation
23) Antimicrobial constituent of semen
24) Sigmoid flexure is pre-scrotal in ———sp.
25) In Yolkmedia for buck semen, seminal plasma must be removed to prevent yolk coagulation due to the action of ——
26) Generally semen of ——sp. doesn’t respond to freezing
27) From oogenesis onwards diplotene nucleus of oocyte remains in resting stage called—-
28) Growth of follicle upto the stage of antrum is ————
29) The cell layer of trophoectoderm covering the inner cellmass——–
30) Split oestrus is common in ———-
31) Percentage of spermatozoa in semen ————–
32) ———- is the most important maternal cause of dystocia in ewe
33) ———- is the most important maternal cause of dystocia in sow
34) First successful embryo transfer in cow was done by………….
35) ——–ions are necessary for optimum sperm motility
36) Most important spermicidal heavy metals………..
37) Normal fructolysis index of semen ranges from———-
38) ——cells in are more common in severe testicular hypoplasia
39) Sperm specific LDH localized in midpiece
40) Glyceryl phosphoryl choline, carnitine and sialic acid in semen are secreted from——
41) Dag defect is more common in —–sp. and is associated with high level of———metal
42) Optimum temperature for preservation of boar semen is————-
43) —–percentage of sodium citrate dehydrate is isotonic to semen
44) First A.I was done by ——— in beagle bitch
45) First A.I in India was done by——–in Mysore Palace Dairy farm
46) Osmotic pressure of semen ranges from———–
47) Examples for penetrating or intracellular cryoprotectants are———
48) Examples for non-penetrating or extracellular cryoprotectants are———
49) ———gland is the source of antiagglutinin in sperm
50) Semen freezes at ——-temperature
51) Level of ascorbic acid in semen———-
52) Trichomonas abortion is more common in —–trimester of pregnancy
53) ——-is the most widely used extender for frozen semen
54) High catalase activity, reduced fructose and high pH in semen are indicative of ——–
55) ———–is a β-blocking agent used to shorten parturition
56) ———is a β-adrenergic agent used to delay parturition

ANSWERS:
1) Kidney shaped
2) bitch
3) 1 ng/ml
4) early embryonic mortality
5) cattle and buffaloes
6) Mare (*In mare, PgF2α has systemic action )
7) 70 to 120 hours
8) androgenesis
9) Blastokinin or uteroglobulin
10) relaxin
11) syncytiotrophoblastic cells
12) 18 carbon atoms (**Testosterone-19C steroid and progesterone-21C steroid)
13) stallion
14) Doppler phenomenon
15) swine
16) estrogen
17) 4 to 8 days
18) cauliflower shaped
19) sow
20) Trichomonas infection
21) polygyny
22) 3 to 5 days (*** 11 to 12 days in sow)
23) seminal plasmin
24) boar
25) phospholipase or triacyl glycerol lipase
26) Boar semen
27) Dictyate stage
28) Gonadotropin independent
29) Rauber cells
30) Mare
31) 10%
32) ring womb
33) uterine inertia
34) Willet in 1951
35) Potassium
36) Cu and Fe
37) 1.4 to 2 mg/hr
38) medussa cells and giant cells
39) LDH-X
40) Epididymis
41) Danish Jersey, Zn
42) 15 to 18°C
43) 2.94%
44) Lazzaro Spallanzani
45) Dr.Sampathkumaran
46) 280 to 300 milliOsmol
47) Glyserol, DMSO and Ethylene glycol
48) Raffinose, sucrose, PVP and glycine
49) Prostate
50) -0.53°C
51) 3 to 8 mg/ 100ml
52) first trimester
53) Yolk citrate
54) Seminal vesiculitis
55) Carazolol
56) clenbuterol

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