NEET Biology Human Reproduction Question Bank

done Fertilization Total Questions - 47

• question_answer1)
  In man sperms move after ejaculation at a rate of nearly [CBSE PMT 1991]
  A)
  2 to 4 mm/minute done clear
  B)
  2 to 4 feet/minute done clear
  C)
  2 to 4 inches/minute done clear
  D)
  2 to 4 cm/minute done clear
  View Solution play_arrow

• question_answer2)
  What helps in the penetration of egg by the sperm   [MP PMT 1992]
  A)
  Fertilizin done clear
  B)
  Antifertilizin done clear
  C)
  Sperm lysin done clear
  D)
  Fertilization membrane done clear
  View Solution play_arrow

• question_answer3)
  Fertilizins are the substances emitted from [BHU 1985]
  A)
  Mature egg done clear
  B)
  Sperms done clear
  C)
  Immature egg done clear
  D)
  Polar body done clear
  View Solution play_arrow

• question_answer4)
  One of the minute cell which separates from the animal egg during maturation is known as [CPMT 1986, 90]
  A)
  Primary spermatogonia done clear
  B)
  Secondary oogonia done clear
  C)
  Primary oogonia done clear
  D)
  Polar bodies done clear
  View Solution play_arrow

• question_answer5)
  Fertilization occurs in human, rabbit and other placental mammals in   [CPMT 1978, 79, 81, 89, 94; DPMT 1985; AIIMS 1993; MP PMT 1993, 95;   Kerala CET 2002; RPMT 2002]
  A)
  Ovary done clear
  B)
  Uterus done clear
  C)
  Fallopian tubes done clear
  D)
  Vagina done clear
  View Solution play_arrow

• question_answer6)
  After a sperm has penetrated an ovum in the process of fertilization, entry of further sperms is prevented by [NCERT 1984]
  A)
  Development of the vitelline membrane done clear
  B)
  Development of the pigment coat done clear
  C)
  Condensation of yolk done clear
  D)
  Formation of fertilization membrane done clear
  View Solution play_arrow

• question_answer7)
  The sperm produces substances of enzymatic nature called sperm lysin. In mammals, it is called [DPMT 1986; MP PMT 2001 KCET 2001]
  A)
  Hyaluronidase done clear
  B)
  Hyaluranic acid done clear
  C)
  Androgamone done clear
  D)
  Cryanogamone done clear
  View Solution play_arrow

• question_answer8)
  Development of an egg without fertilization is called [CPMT 1972]
  A)
  Gametogenesis done clear
  B)
  Metagenesis done clear
  C)
  Oogenesis done clear
  D)
  Parthenogenesis done clear
  View Solution play_arrow

• question_answer9)
  What is true in the process of fertilization [MP PMT 1990; KCET 1994]
  A)
  Only one sperm reaches the egg and enters it done clear
  B)
  The entry of sperm activates the egg for completing meiosis done clear
  C)
  Two haploid nuclei fuse and immediately divide to produce two nuclei which are again haploid done clear
  D)
  Only the acrosome of the sperm enters the egg done clear
  View Solution play_arrow

• question_answer10)
  On fertilization of egg nucleus with sperm nucleus   [CPMT 1993]
  A)
  First maturation is completed done clear
  B)
  Second maturation is completed done clear
  C)
  Embryo is formed done clear
  D)
  First polar body is formed done clear
  View Solution play_arrow

• question_answer11)
  The phenomenon of fertilization was first perceived by [CPMT 1987]
  A)
  Weismann done clear
  B)
  Leeuwenhoek done clear
  C)
  Robert Hooke done clear
  D)
  Hertwig done clear
  View Solution play_arrow

• question_answer12)
  In reproduction of a test tube baby [CBSE PMT 1989]
  A)
  Fertilization is done outside body done clear
  B)
  Foetus is grown in a test tube done clear
  C)
  Fertilization is done inside the  body done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer13)
  The final event in the process of fertilization is   [MP PMT 1994]
  A)
  Fusion of gametes done clear
  B)
  Egg activation done clear
  C)
  Amphimixis done clear
  D)
  Organizational change in egg cytoplasm done clear
  View Solution play_arrow

• question_answer14)
  During the development, the point of entry of sperm in the eggs at fertilization
  A)
  Establishes the antereo-posterior axis done clear
  B)
  Forms the centre of rotation of egg done clear
  C)
  Forms the grey crescent done clear
  D)
  Forms the dorsal lip of blastopore done clear
  View Solution play_arrow

• question_answer15)
  A sperm without acrosome, cannot
  A)
  Get food supply done clear
  B)
  Move done clear
  C)
  Penetrate into the seminal vesicle done clear
  D)
  Penetrate into the ovum done clear
  View Solution play_arrow

• question_answer16)
  Amphimixis means
  A)
  Fusion of male and female gametes done clear
  B)
  Fusion of male and female pronuclei done clear
  C)
  Movement of the sperm towards ovum done clear
  D)
  Movement of the ovum towards sperm done clear
  View Solution play_arrow

• question_answer17)
  During fertilization, which centriole of the sperm gives rise to a spindle system inside the egg
  A)
  Proximal centriole done clear
  B)
  Distal centriole done clear
  C)
  Ring centriole done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer18)
  The fertilization membrane during fertilization is synthesized by [RPMT 2000]
  A)
  Mitochondria done clear
  B)
  Golgi bodies done clear
  C)
  Acid mucopolysaccharides of cortical granules done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer19)
  The function of egg cell is/are
  A)
  It supplies a haploid set of chromosomes to the future embryo done clear
  B)
  It provides most of the cytoplasm to the embryo done clear
  C)
  It supplies food reserves to the embryo done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer20)
  The size of the egg chiefly depends upon the
  A)
  Size of the animal done clear
  B)
  Amount of yolk reserves in it done clear
  C)
  Amount of food taken by the mother done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer21)
  When more than one sperm establish contact and penetrate into the egg, then it is called
  A)
  Monospermy done clear
  B)
  Polyspermy done clear
  C)
  [a] and [b] both done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer22)
  The disadvantage of parthenogenesis is
  A)
  Establishment of polyploid generation done clear
  B)
  Elimination of variety in population done clear
  C)
  Means of reproduction done clear
  D)
  Does not encourage the appearance of new and advantageous combinations of genes done clear
  View Solution play_arrow

• question_answer23)
  Repressor theory of activation of fertilization was given by
  A)
  Heilbrunn done clear
  B)
  Runnstrom done clear
  C)
  Monray and Tyler done clear
  D)
  Batallion done clear
  View Solution play_arrow

• question_answer24)
  The hormones of the sperm are called
  A)
  Gynogamones-I done clear
  B)
  Androgamones done clear
  C)
  Gynogamones-II done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer25)
  Function of fertilizin is/are
  A)
  Makes the sperm sticky done clear
  B)
  Clumping of sperms done clear
  C)
  Makes sperm to adhere the surface of egg done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer26)
  Which type of stimulus is used to achieve parthenogenic development
  A)
  Chemical done clear
  B)
  Change in \[pH\] done clear
  C)
  Pricking with microneedle done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer27)
  The primordial germ cells make their appearance from wall of
  A)
  Amnion done clear
  B)
  Chorion done clear
  C)
  Allantois done clear
  D)
  Gonad done clear
  View Solution play_arrow

• question_answer28)
  Gyanogamones are secretions from
  A)
  Ovum or unfertilized egg done clear
  B)
  Spermatids done clear
  C)
  Cells of Graafian follicle done clear
  D)
  Ovary done clear
  View Solution play_arrow

• question_answer29)
  Antifertilizins are contained in
  A)
  Spermatozoa done clear
  B)
  Ovary done clear
  C)
  Testis done clear
  D)
  Germinal epithelium done clear
  View Solution play_arrow

• question_answer30)
  In sperm bank the sperms are stored in test tubes for the purpose of artificial insemination
  A)
  Due to addition of certain chemicals done clear
  B)
  Under extraordinary cold condition done clear
  C)
  Under normal laboratory condition done clear
  D)
  After washing with distilled water done clear
  View Solution play_arrow

• question_answer31)
  The chemical fertilizer is present in [Manipal 2005]
  A)
  Ovum done clear
  B)
  Sperm done clear
  C)
  Immature ovum done clear
  D)
  Fertilized ovum done clear
  View Solution play_arrow

• question_answer32)
  Which one of the following events immediately follows the entry of a spermatozoan into an oocyte
  A)
  An increase in the permeability of the oocyte membrane done clear
  B)
  An increase in activity of proteolytic enzymes done clear
  C)
  A decrease in the metabolic rate of the oocyte done clear
  D)
  Thickening of the vitelline membrane done clear
  View Solution play_arrow

• question_answer33)
  The animals which lay fertilized or unfertilized eggs and whole development takes place outside the body of mother are called
  A)
  Oviparous done clear
  B)
  Viviparous done clear
  C)
  Ovo-viviparous done clear
  D)
  Herbivorous done clear
  View Solution play_arrow

• question_answer34)
  In eggs which have very thick and resistant membrane e.g., fishes and insects sperm penetrate through a special canal called
  A)
  Vitelline membrane done clear
  B)
  Jelly coat done clear
  C)
  Polar body done clear
  D)
  Micropyle done clear
  View Solution play_arrow

• question_answer35)
  Who demonstrated the acrosome reaction in Saccoglossus
  A)
  F.R. Lillie (1919) done clear
  B)
  Colwin and Colwin (1967) done clear
  C)
  [a] and [b] both done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer36)
  A layer of cortical granules is found beneath the
  A)
  Vitelline membrane done clear
  B)
  Fertilization cone done clear
  C)
  Plasma membrane done clear
  D)
  Hyaline layer done clear
  View Solution play_arrow

• question_answer37)
  Female rabbit is
  A)
  Monoestrus done clear
  B)
  Diestrus done clear
  C)
  Polyestrus done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer38)
  Function of gynogamone-I is
  A)
  Conserves sperm activity done clear
  B)
  Dissolves vitelline membrane done clear
  C)
  Neutralizes androgamone-I thereby increasing sperm activity done clear
  D)
  Makes sperm head sticky to facilitate attachment of sperm to egg surface done clear
  View Solution play_arrow

• question_answer39)
  To reduce the weight of spermatozoan and enhance its motility nucleus undergoes which of the following change
  A)
  Shrinks by losing water from nuclear sap done clear
  B)
  Chromosomes are closely packed done clear
  C)
  RNA is removed done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer40)
  Normally the number of chromosomes in the nuclei of gametes that fuse at fertilization are [MP PMT 1995]
  A)
  Innumerable done clear
  B)
  Dissimilar done clear
  C)
  Similar done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer41)
  In sexually reproducing animals the union of male and female gamete forms a cell which is called [MP PMT 1995]
  A)
  Ovarian cell done clear
  B)
  Oocyte done clear
  C)
  Zygote done clear
  D)
  Graafian follicle done clear
  View Solution play_arrow

• question_answer42)
  Movement of sperm is done by [MP PMT 1996, 99]
  A)
  Tail done clear
  B)
  Head done clear
  C)
  Acrosome done clear
  D)
  Middle piece done clear
  View Solution play_arrow

• question_answer43)
  When sex is determined at the time of fertilization, it is known as
  A)
  Progamic done clear
  B)
  Syngamic done clear
  C)
  Epigamic done clear
  D)
  All the above done clear
  View Solution play_arrow

• question_answer44)
  Fertilizin is a chemical substance produced from   [CBSE PMT 1997]
  A)
  Mature eggs done clear
  B)
  Acrosome done clear
  C)
  Polar bodies done clear
  D)
  Middle piece of sperm done clear
  View Solution play_arrow

• question_answer45)
  Fertilization is depicted by the condition [DPMT 2003]
  A)
  \[n\to 2n\] done clear
  B)
  \[2n\to 3n\] done clear
  C)
  \[2n\to 4n\] done clear
  D)
  \[4n\to 8n\] done clear
  View Solution play_arrow

• question_answer46)
  The sperm penetrates the ovum mainly [AIEEE 2004]
  A)
  Mechanically done clear
  B)
  Chemically done clear
  C)
  Electrostatically done clear
  D)
  Thermally done clear
  View Solution play_arrow

• question_answer47)
  Syngamy is the process in which
  A)
  Male gamete fuses with female gamete done clear
  B)
  Pollen tube enters into the ovule through micropyle done clear
  C)
  Pollen tube enter into the ovule through chalaza done clear
  D)
  Vegetative cell and tube cell fuse done clear
  View Solution play_arrow