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301.

Breaking of acrosome membrane is:A. AgglutinationB. ActivationC. CavitationD. Capacitation.

Answer» Correct Answer - A
302.

Testerone is secreted byA. Sertoli cellsB. Leydig/interstitial cellsC. Seminiferous cellsD. All the above.

Answer» Correct Answer - B
303.

Macrolecithal eggs are characterised byA. Little yolkB. Abundant yolkC. Entry of spermD. Pattern of cleavage.

Answer» Correct Answer - B
304.

Cleavage in mammalian egg ,isA. equal holoblasticB. unequal holoblasticC. superficial meroblasticD. discoidal meroblastic

Answer» Correct Answer - B
(b) The progressive division of cells during enbryonic growth is called cleavage. It is not accompanied by increase in the overall size of embryo.
The first cleavage occurs in human zygote about 30 hours after fertilisation. It is holoblastic (complete) and gives rise to the blastomeres-one of which is slightly larger than the other.
305.

Chemical substance present on the surface of sperm isA. HyalouronidaseB. AntifertilizinC. AgglutininD. Fertilizin.

Answer» Correct Answer - B
306.

Nonellular layer isA. Theca internaB. Membrana granulosaC. Corona radiataD. Zona pellucida.

Answer» Correct Answer - D
307.

Testes of Rabbit occurA. On either side of dorssal aortaB. Inside bodyC. On sides of kidneysD. In scrotal sacs.

Answer» Correct Answer - D
308.

During development which of the folowing organs is formed firstA. HeartB. BrainC. Neural tubeD. Skin.

Answer» Correct Answer - C
309.

Which organelle is absent in human sperm?A. MitochondriaB. NucleusC. Centriole onlyD. E.R.

Answer» Correct Answer - D
310.

Which of the following is correct sequence in embryo developmentA. Cleavage, gastrualtion, blastulationB. Blastulation, cleavage, gastrulationC. Clevage,blastulation, gastrulationD. Gastrulation,blastulation,cleavage.

Answer» Correct Answer - C
311.

A cell formed from cleavage is calledA. BlastomereB. BlastoporeC. BlastulaD. Morula.

Answer» Correct Answer - A
312.

In mammals, primivie streak gives rise toA. EctodermB. MesodermC. EndodermD. All the germ layers.

Answer» Correct Answer - B
313.

Immediate memberane covering the mammalian egg isA. Corona radiataB. Zona pellucidaC. Vitelline membraneD. Chorion.

Answer» Correct Answer - C
314.

Primary germ layers areA. Trophoblast, ectoderm, mesoderm and endodermB. Endoderm, trophoectoderm and trophomesodermC. Trophomesoderm and trophoectodermD. Ectoderm, mesoderm and endoderm.

Answer» Correct Answer - D
315.

Foetus is nourished byA. PlacentaB. YolkC. BloodD. Phagocytosis.

Answer» Correct Answer - A::D
316.

Spermatozoa are nourished during their development byA. Sertoli cellsB. Interstitial cellsC. Connective tissue cellsD. None of the above.

Answer» Correct Answer - A
317.

Acrosomal reaction occurs at the time ofA. ExcretionB. Painful stimulationC. Movement of spermD. Fertilisation.

Answer» Correct Answer - D
318.

Spermatozoa are nourished during their development byA. Sertoli cellsB. Connective tissue cellsC. Interstitial cellsD. None of the above

Answer» Correct Answer - A
(A) Spermatozoa are nourished during their development by Sertoli cells.
319.

Fertilization of sperm and ova takes place in:A. ampulla of oviductB. isthmus of oviductC. fimbriae of oviductD. none of these

Answer» Correct Answer - a
320.

Vitellogenesis occurs during the formation of:A. ootid in the Fallopian tubeB. oogonial cell in the Graafian follicleC. secondary oocyte in the Fallopian tubeD. primary oocyte in the Graafian follicle

Answer» Correct Answer - d
321.

Vitellogenesis occurs during the formation of:A. Secodnary oocyte in fallopian tubeB. Primary oocyte is Graffian follicleC. Primary spermatocyte in testisD. Secondary spermatocyte in testis

Answer» Correct Answer - B
322.

Which one is not associated with gametogenesisA. Formation of ovaB. Formation of spermatidsC. Release of ovaD. Change of spermatid to spermatozoa

Answer» Correct Answer - C
323.

Hormone controlling human menstrual cycle isA. EstrogenB. FSHC. LHD. All the above.

Answer» Correct Answer - D
324.

Hormone responsible for ovulation and development of corpus luteum isA. FSHB. LHC. LTHD. ICSH.

Answer» Correct Answer - B
325.

Hormone responsible for ovulation and development of corpus luteum isA. FSHB. LHC. LTHD. ICSH

Answer» Correct Answer - B
(B) Hormone responsible for ovulation and development of corpus luteum is LH.
326.

Hormone controlling human menstrual cycle isA. EstrogenB. FSHC. LHD. All of the above

Answer» Correct Answer - D
(D) Hormone controlling human menstrual cycle is estrogen, FSH and LH.
327.

Which of the following statement is wrong.A. Sertoli cells provide nutrition to the developing male germ cellsB. Leydig cells synthesise and secrete androgensC. Secretions of acrosome help the sperm to enter the cytoplasm of the ovumD. Secondary spermatocytes are diploid

Answer» Correct Answer - D
328.

The inner glandular layer of uterus isA. EndometriumB. MyometriumC. Fallopian tubesD. Perimerium

Answer» Correct Answer - A
329.

The inner glandular layer of the uterus is:A. perimetriumB. endometriumC. myometriumD. infundibulum

Answer» Correct Answer - b
330.

What are the changes in the oogonia during the transition of a primary follicle to Graafian follicle?

Answer» The germinal epthelial cells divide repeatedly unti many diploid oogonia are formed. The layer of granulosa cells and then called the primary follicle.
The primary follicles get surrounded by more layers of granulosa cells and called secondary by a fluid filled cavity called antrum.
The primary oocyte within th tertary follicle undergoes melotic division to become a secondary oocyte and a first polar body (haploid). The tertiary follicle further changes into the mature follicle or Graafian follicle that ruptures to release the secondary oocyte (ovum) from the ovary by the process called ovulation.
331.

The sperm head contains an elongated__________nucleus.

Answer» Correct Answer - Haploid
332.

Which is not formed by Wolffian duct?A. EpididymisB. Vas deferensC. Ejaculatory ductD. Oviduct.

Answer» Correct Answer - D
333.

Wolffian body is also known asA. pronephrosB. mesonephrosC. metanephrosD. abnormal heart

Answer» Correct Answer - b
334.

In the male reproductive system, sperms are concentrated toA. rete testisB. epididymisC. vas deferensD. sseminal vesicle

Answer» Correct Answer - b
335.

In normally pregnant woman, gonadotropin activity shows high level ofA. Circulating FSH and LH to atimulate implanatation of embryo in uterusB. Circulating hCG to stimulate endometrial thickeningC. Circulating hCG to stimulate estrogen and progesterone synthesisD. FSH and LH to stimulate endometrial thickening.

Answer» Correct Answer - B
336.

The solid mass of 8-16 cells formed fromk zygote after successive mitotic divisions is calledA. blastulaB. gastrulaC. morulaD. none of these

Answer» Correct Answer - C
337.

Identify the human developmental stage shown as well as the related right place of its occurrence in a normal pregnant woman and select the right options for the two, together.A. `{:("Developmental stage","Site of occurrence"),("Late morula","Middle part of fallopian tube"):}`B. `{:("Developmental stage","Site of occurrence"),("Blastula","End part of Fallpian tube"):}`C. `{:("Developmental stage","Site of occurrence"),("Blastocyst","Uterine wall"):}`D. `{:("Developmental stage","Site of occurrence"),("8-celled morula","Starting point of Fallopian tube"):}`

Answer» Correct Answer - C
After fertilisation, a single-celled zygote develops into a multicellular structure called blastocyst. This blastocyst then gets embedded in the endometrium of the uterus and the process is known as implantation.
338.

In human, cleavage divisions are:A. slow and synchronousB. Fast and synchronousC. Slow and asynchronousD. Fast and asynchronous

Answer» Correct Answer - C
Primary spermatocyte are about double the volume of spermatogonia as they formed as a result of growth phase.
339.

Which one of the following statements with regard to embryonic development in humans is correct?A. Cleavage divisions bring about considerable increase in the mass of protoplasm.B. In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second.C. With more cleavage divisions, the resultant blastomeres become larger and larger.D. Cleavage division results in a hollow ball of cells called morula.

Answer» Correct Answer - D
340.

In humans, cleavage divisions areA. Slow and synchronousB. Slow and asynchronousC. Fast and synchronousD. Fast and asynchronous.

Answer» Correct Answer - B
341.

Cauda epididymes leads to :A. rete testisB. vas efferensC. vas deferensD. ejaculatory duct

Answer» Correct Answer - c
342.

The function of vas deferens is to:A. store the spermsB. mature the spermsC. conduct the spermsD. none of these

Answer» Correct Answer - c
343.

The common duct formed by the union of vas deferens and duct from seminal vescial is :A. UrethraB. mullerian ductC. Ejaculatory ductD. Spermatic duct

Answer» Correct Answer - C
344.

Leydig cells produce:A. Nourishement of spermsB. Provide motility to spermsC. Bring about maturation of spermsD. Synthesis of testosterone Androgens.

Answer» Correct Answer - D
345.

Which is worng about oogenesis?A. Unequal meiotic divisionB. Growth phaseC. Formation of polar bodiesD. Equal meotic division

Answer» Correct Answer - D
346.

Gastrualtion isA. Cleavage of zygoteB. Formation of trophoblastC. Morphogenetic movementD. Gamete formation

Answer» Correct Answer - C
347.

Sertoli cells are involved in :-A. Secretory cellsB. respiratory cellsC. Excretory cellsD. Nurse cells.

Answer» Correct Answer - D
348.

Sertoli cells are involved in :-A. Nourish spermsB. Form the spermsC. Help in fertilizationD. Synthesise hormones.

Answer» Correct Answer - A
349.

A : if both the ovaries are removed after the first trimester of pregnancy still there would be normal growth of foetus . R : After first trimester placenta secretes sufficient progesteroneA. If both Assertion & Reason are true and the reason is the correct explanation of the assertion then mark (1)B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2)C. If Assertion is true statement but Reason is false then mark (3)D. If both Assertion and Reason are false statement then Mark (4)

Answer» Correct Answer - A
350.

In ectopic pregnancy, foetua grown inA. VaginaB. Fallopian tubeC. UterusD. Body cavity

Answer» Correct Answer - B