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451.

Identify the wrong statement with respect to embryonic stem cellsA. They are pluripotentB. They are isolated from epiblast tissue of blastocystC. They cannot proliferate in culture mediumD. They can give rise to the three germinal layers.

Answer» Correct Answer - C
452.

Identify the correct passage of spermatozoa in male human reproductive system.A. Vas deferenceB. EpididymisC. UrethraD. Vasa efferentia

Answer» Correct Answer - C
453.

A large number of primary folicles degenerate during the phase from birth to puberty. Therefore, at puberty each ovary has aboutA. 1 million primary folliclesB. A couple of million primary folliclesC. 60,000 - 80,000 primary folliclesD. 1,20,000-1,60,000 primary follicles

Answer» Correct Answer - C
(C ) A large number of primary follicles degenerate during the phase from birth to puberty. Therefore, at puberty each ovary has about 60,000-80,000 primary follicles.
454.

How many primary fillicles are left in each ovary at puberty ?

Answer» Correct Answer - 60,000-80,000
455.

In human the unpaired male reproductive structure isA. TestisB. Seminal vesicleC. Bulbourethral glandD. Prostate

Answer» Correct Answer - D
456.

In human the unpaired male reproductive structure isA. TestisB. Seminal vesicleC. Bulbourethral glandD. Prostate gland

Answer» Correct Answer - D
(D) In human the unpaired male reproductive structure is prostate.
457.

At puberty women start producing:A. OvaB. urineC. spermsD. infants

Answer» Correct Answer - a
458.

Which of the following is unpaired in a mammel?A. OvaryB. ClitorisC. Fallopian tubeD. Pineal gland

Answer» Correct Answer - b
459.

Which of the following is secondary sex organ?A. BeardB. UterusC. OvaryD. Broad hips

Answer» Correct Answer - B
460.

Secondary sex organ isA. TestisB. BreastC. BeardD. Vas deferena.

Answer» Correct Answer - C
461.

Orunart sex irgab usA. Ovary/TestisB. Uterus/Seminal VesicleC. Breast/BeardD. Spermatic cord.

Answer» Correct Answer - A::D
462.

Identify the correct set of three parts A. IV-Oviducal funnel,V-Uterus,VI-CervixB. I-Perimetrium. II-Myometrium, III-Fallopian tubeC. II-Infundibulum,IV-Fimbriae,V-Cervix.D. None of these

Answer» Correct Answer - D
463.

What happens during fertilization when many sperms reach close to ovumA. Cells of corona radiata trap all the sperms except oneB. Only two sperms nearest to ovum penetrate zona pellucidsC. Secretion of acrosome helps one sperm enter cytoplasum of ovum through zona pellucidaD. All sperms except the one nearest to ovum lose their tails.

Answer» Correct Answer - C
464.

The mammary glands ar paired structure (breasts ) that contain glandular tissue and variable amount of fat . The glandular tissue and variable amount of fat. The glandular tissue of breast is divided intoA. 10-12 mammary lobesB. 12-16 mammary tubulesC. 15-20 mammary alveloiD. 15-20 mammary lobes

Answer» Correct Answer - D
(D) The mammary glands are paired structure (breasts) that contain glandular tissue and variable amount of fat. The glandular tissue of breast is divided into 15-20 mammary lobes.
465.

The glandular tissue of each breast is divided into..........mammary lobes.

Answer» Correct Answer - 15-20
466.

Which one is correctA. Cleavage follows gastrulationB. Yolk content of egg has no role in cleavageC. Cleavage is repeated mitotic division of zygoteD. Gastrulation and blastulation follow each other.

Answer» Correct Answer - B
467.

In insect egg, cleavage isA. Equal holoblasticB. Unequal holoblasticC. Meroblastic superficialD. Meroblastic discoidal

Answer» Correct Answer - C
(C ) Superficial cleavage: The cleavage is restricted to the superficial region of egg. e.g.: Insects (Arthropods), Centrolecithal eggs.
468.

I n insect egg, cleavage isA. Equal holoblasticB. Unequal holoblasticC. Meroblastic superficialD. Meroblastic discoidal.

Answer» Correct Answer - C
469.

Sperm enters the egg fromA. Animal poleB. Vegetal poleC. MicropyleD. Megapyle

Answer» Correct Answer - A
(A) Sperm enters the egg from animal pole.
470.

Sperm enters the egg fromA. Animal poleB. Vegetal poleC. MicropyleD. Megapyle.

Answer» Correct Answer - a
471.

Two offspring developed in the same uterus from fertilisation of two different ova areA. Monozygotic twinsB. Dizygotic twinsC. Fraternal twinsD. Both B and C.

Answer» Correct Answer - D
472.

Function of protien bindin in acrosomal process is toA. prevent polyspermyB. Digest viteline layerC. Ensure fertilisation of egg by a sperm of same speciesD. Severe the sperm tail.

Answer» Correct Answer - A
473.

Withdrawl of which hormone is the immediate cause of mentruation ?A. EstrogenB. FSHC. FSH-LHD. Progesterone

Answer» Correct Answer - D
474.

The first meiotic division during oogenesis is completed at the stage ofA. Primary oocyte within primary follicleB. Primary oocyte within secondary follicleC. Primary oocyte within tertiary follicleD. Secondary oocyte within tertiary follicle

Answer» Correct Answer - C
(C ) The first meiotic division during oogenesis is completed at the stage of primary oocyte within tertiary follicle.
475.

Which of the following is a secondary sex organ?A. BeardB. UterusC. OvaryD. Broad hips

Answer» Correct Answer - b
476.

Which grouping has gestation period in decreasing order?A. Cow, Horse,Goat ,Monkey and Swine pig.B. Horse,Cow,Goat,Monkey and SwineC. Moneky,Cow,Horse,Goat and SwineD. Monkey,Horse,Goat,Cow and Swine.

Answer» Correct Answer - B
477.

Assertion: The embryo with 8 to 16 blastomeres is called a morula. Reason: The blasometeres in the morula are arranged into an outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - C
(C )
The embryo with 8 to 16 blastomeres is called a morula.
The blastometeres in the blastocyst are arranged into an outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.
478.

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?A. 11 th dayB. 14th dayC. 20th dayD. 5th day

Answer» Correct Answer - b
479.

Part of sperm that passes into ovum isA. TailB. AcrosomeC. HeadD. Head, nect and middle piece.

Answer» Correct Answer - D
480.

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?A. 14th dayB. 20th dayC. 5th dayD. 11th day

Answer» Correct Answer - A
481.

Surgical removal of uterus is calledA. TubectonyB. HysterctomyC. VasectomyD. Orchidectony.

Answer» Correct Answer - B
482.

The secretory phase in the human menstrual cycle is also called:A. luteal phase and lasts for about 13 days follicular phase and lasts for about 13 daysB. luteal phase and lasts for about 6 daysC. follicular phase and lasting for about 6 daysD.

Answer» Correct Answer - A
483.

Which layer of embryo is formed firstA. EctodermB. MesodermC. EndodermD. Both B and C.

Answer» Correct Answer - C
484.

Tunica albunginea is related toA. LiverB. LungC. SpleenD. Testes.

Answer» Correct Answer - D
485.

LH surge occurs during phase of menstrual cycle.A. Menstrual phaseB. Beginning of proliferstive phase.C. Just before end of prodiferation phaseD. At the middle of the cycle.

Answer» Correct Answer - D
486.

Menstrual cycle occurs inA. All femalesB. Mammalian femalesC. Primate femalesD. Rabbits

Answer» Correct Answer - C
487.

Mesorchium refers to:A. capsule in testisB. capsule in ovaryC. a peritonial fold that connects testis and kidneyD. a peritonial fold that connects ovary and kidney

Answer» Correct Answer - c
488.

The tunica albugenia is a covering around the :A. testesB. ovariesC. scortal sacsD. epididymis

Answer» Correct Answer - a
489.

In mammels, each testis is connected to the abdominal wall by:A. mesovariumB. gubernaculumC. mesorchiumD. spermatic cord

Answer» Correct Answer - d
490.

In mammels, the body the embryo is formed from:A. trophoblastB. inner cell massC. outer cell massD. trophoectoderm

Answer» Correct Answer - b
491.

Corpus leteum in mammels occur in:A. skin and acts as a pain receptorB. heart and initiates atrial contractionC. ovaries and produces progesterone hormoneD. brain and connects two cerebral hemispheres

Answer» Correct Answer - c
492.

Seminiferous tubuleous occur in :A. liverB. testisC. ovaryD. kidney

Answer» Correct Answer - b
493.

Identify correctly A. a-uterus, b-uterine cavity,c-oviducal funnel,d-ovaryB. a-cervix,b-uterine cavity,c-fallopian tube,d-ovarC. a-oviduct, b-uterus,c-oviduct,d-ovaryD. a-cervix,b-uterus,c-ovary,d-tumor.

Answer» Correct Answer - B
494.

Release of second polar body from human egg occursA. After entry of spermB. After fertilizationC. Before sperm entryD. With no relation to sperm entry

Answer» Correct Answer - A
(A) Release of second polar body from human egg occurs after entry of sperm.
495.

Cell division that occurs in zygote is calledA. MeiosisB. MitosisC. CleavageD. Differentiation.

Answer» Correct Answer - C
496.

Scrotal sacs of man is connected with the abdominal cavity by-A. epididymisB. spermatic canalC. inguinal canalD. haversian canal

Answer» Correct Answer - C
497.

Testes of men occur:A. inside bodyB. above dorsal aortaC. in scortal sacsD. on the sides of kidney

Answer» Correct Answer - c
498.

Scrotal sacs of man and rabbit are connected with the abdominal cavity byA. Inguinal canalB. Haversian canalC. Vagina cavityD. Spermatic canal.

Answer» Correct Answer - A
499.

Which of the following is not a male accessory sexual characterstics?A. BeardB. Deep voiceC. Broad shoulderD. Increased fat in buttock

Answer» Correct Answer - d
Increased fat in breasts and buttocks is a female accesory sexual charachtrerstic.
500.

Testosterone is a/an:A. steroidB. protienC. octapeptideD. glycoprotein

Answer» Correct Answer - a
Testosterone, theprinciple hormone of the tests, is `C_(19)` sdteroid with an -OH group in the 17 position. It is synthesized from cholestrol in the Leydig cells and is also formed from anderostenedione secreated by the adrenal cortex.