4000 MCQ General Science Most important questions PDFs + Videos
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4000 MCQ General Science Most important questions PDFs + Videos
4000 MCQ General Science Most important questions PDFs + Videos
Q51. Cell Division is synonymous with reproduction in:
(a). Plants and Fungi
(b). Animal and Plant
(c). Protista and Monera
(d).Monera and Algae
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Q52. The polyestrous mammal is
(a) Man
(b) Rabbit
(c) Cat
(d) Horse
Q53.Which of these organism show budding:
(a) Yeast
(b) Hydra
(c) Sponge
(d) All of the above
Q54. The parthenogenesis refers to-a-fruit
(a) with seeds after pollination
(b) without seeds after pollination
(c) with viable seeds after fertilization
(d) seedless without fertilization
Q55.Which are the units of vegetative propagation:
(a) Runners and Rhizomes
(b) Suckers and bulbs
(c) Tuber and offset
(d) All of these
Q56.In Plants,the units of vegetative propagation are capable of giving rise to new offspring.These structures are called:
(a) Zoospores
(b) Asexual Spores
(c) Vegetative propagules
(d) Rhizomes
Q57.Which type of asexual reproduction takes place in sycon and spongilla ?(a) Exo budding /????????? ??????
(b) Endo budding
(c) Fragmentation
(d) Division
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Q58.In all the methods of asexual reproduction
(a) offsprings produced are genetically identical to the parents
(b) offsprings produced are genetically di?erent from the parents
(c) o?springs produce may or may not be identical to the parents
(d) None of the above
Q59.The function of egg cell is/are(a) It supplies a haploid set of chromosomes to the future embryo
(b) It provides most of the cytoplasm to the embryo
(c) It supplies food reserves to the embryo
(d) All the above
Q60.On fertilization of egg nucleus with sperm nucleus
(a) first maturation is completed
(b) second maturation is completed
(c) embryo is formed
(d) first polar body is formed
Q61.Common method of asexual reproduction is by
(a) regeneration
(b) budding
(c) archaeocytes
(d) gemmulation
Q62.What is true in the process of fertilization?
(a) Only one sperm reaches the egg and enters it
(b) The entry of sperm activates the egg from completing meiosis
(c) Two haploid nuclei fuse and immediately divide to produce two nuclei which are again haploid
(d) Only the acrosome of the sperm enters the egg
Q63.In sexual reproduction, o?sprigs resemble the parents
(a) structurally but not functionally
(b) functionally but not structurally
(c) both structurally and functionally
(d) neither structurally nor functionally
Q64.Binary fission is found in
(a) Amoeba
(b) Paramoecium
(c) Planaria
(d) all of these
Q65.Natural parthenogenesis occurs in
(a) Frog to form female
(b) Honey Bee to produce drones
(c) Cockroach
(d) Vegetarian eggs
Q66.In Earthworms, self fertilization does not occur due to
(a) Hypogyny
(b) Protogyny
(c) Protandry
(d) Epigyny
Q67.An alteration of asexual and sexual generations where both the generations are diploid and the diploid stage is represented only by the gametes is calle
(a) binary fission
(b) metagenesis
(c) paedogenesis
(d) parthenogenesis
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Q68.A person which shows the secondary sexual characters of both male and female is called
(a) Intersex
(b) Hermaphrodite
(c) Bisexual
(d) Gynandromorph
Q69.The production of new plant from the maternal plant is called.
(a) Vegetative reproduction
(b) Cutting
(c) Grafting
(d) Layering
Q70.Which of the following plant reproduces by leaf ?
(a) Agave
(b) Bryophyllum
(c) Gladiolus
(d) Potato/???
Q71.Pollen tube enters the embryo sac through
(a) Any one synergid cell
(b) Directly penetrating the egg cell
(c) In between one synergid cell and secondary nucleus
(d) The help of antipodal cells.
Q72.Grafting is impossible in monocot-because
(a) Vascular bundles are scattered.
(b) Meristem is absent
(c) Collateral open vascular bundle
(d) Radial vascular bundle
Q73.In an egg, the type of cleavage is determined by
(a) shape and size-of the sperm
(b) size and location of the nucleus
(c) amount and distribution of yolk
(d) number of egg membranes
Q74.Amoeba and Yeast reproduce asexually by Fission and, budding respectively, because they are
(a) microscopic organisms
(b) heterotrophic organisms
(c) unicellular organisms
(d) uninucleate organisms
Q75.The "Eyes" of the potato tuber are
(a) root buds
(b) flower buds
(c) shoot buds
(d) axillary buds
Q76.The part which is grafting on stalk of another tree is called
(a) graft
(b) bulbil
(c)bud
(d) scion
Q77.Stem cuttings are commonly used for the propagation of
(a) banana
(b) rose
(c) mango
(d) cotton
Q78.Plants identical to mother plants can be obtained from
(a) seeds
(b) stem cutting
(c) both(a) and(b)
(d) none of these
Q79.Among the following which one is not a method of vegetative propagation?
(a) Budding
(b) Layering
(c) Sowing
(d) Tissue culture
Q80.One of the plants using 'Foliar adventitious buds' is a method for vegetative propagation is
(a) banana
(b) ginger
(c) Bryophyllum
(d) Colocasia
Q81.Appearance of vegetative propagules form the nodes of plants such as sugarcane and ginger is mainly because.(a) nodes are shorter than internodes
(b) nodes have meristematic cells
(c) node a located near the soil
(c) nodes have non-photosynthetic cells
Q82.Di?erntiaton in morphology often two sexes of the same species is called
(a) hermaphrodite
(b) metamorphosis
(c) Sexual dimorphism
(d) unisexual
Q83.The croaking sound made by frog is
(a) hunger cell
(b) just a musical note
(c) signalling call of danger
(d)sex call for female partner
Q84.A sperm without acrosome, can not
(a) get food supply
(b) move
(c) penetrate into the seminal vesicle
(d) penetrate into the ovum
Q85.The size of the egg chiefly depends upon the
(a) size of the animal
(b) amount of yolk reserves in it
(c) amount of food taken by the mother
(d) all the above
Q86.When more than one sperm establish contact and penetrate into the egg; then it is called
(a) monospermy
(b) polyspermy
(c) both (a) and (b)
(d) none of these
Q87.Which type of stimulus is used to achieve parthenogenetic development?
(a) Chemical
(b) Change in pH
(c) Pricking with microneedle
(d) All the above
Q88.What is common between vegetative reproduction and apomixis?
(a) Both are applicable to only dicot plants
(b) Both byass the ?owering phase
(c) Both occur round the year
(d) Both produce progeny identical to the parent
Q89.Where does maturity is observed in the sporophyte stage of the plants?
(a) In gemina
(b) In primary structures
(c) In sporophylls
(d) In eggs
Q90.Which tissue is required to be present in between stock and scion during grafting?
(a) Xylem
(b) Phloem
(c) Meristem
(d) Parenchyma
Q91.How man eggs will be formed from an ovary of a woman,in absence implantation of an embryo?
(a) 12
(b) 06
(c) 24
(d) 48
Q92.The Ovary after fertilization is converted into
(a) Embryo
(b) endosperm
(c) fruit
(d) seed
Q93.Which of the following animal shows longitudinal binary fission?
(a) Euglena
(b) Plasmodium
(c) Planaria
(d) Paramoecium
Q94.By which medium gametes of Algae, Bryophytes and Pteridophytes move ?
(a) Air
(b) Water
(c) Lipids
(d) Tissue
Q94.During which process cyst is formed?
(a) Binary fission
(b) Multiple fission
(c) Sporulation
(d) Budding
Q95.Fertilization of egg takes place inside
(a) anther
(b) stigma
(c) pollen tube
(d) embryo sac
Q96.Exponential growth of cells is a characteristics feature of
(a) tissue culture cells
(b)multicellular organisms
(c) unicellular organisms
(d) embryo
Q97.The final event in the process of fertilization is
(a) structural change in male and female gametes
(b) egg activation
(c) amphimixis
(d) organizational change in egg cytoplasm
Q98.Which are the various stages of sexual reproduction ?
(a) Growth, Development, Differentiation
(b) Pre fertilization, Fertilization, Post fertilization
(c) Fertilization, Post Fertilization, Pre Fertilization
(d) Gametogenesis, Gamete transfer, Gamete Fertilization
Q99.In which method of asexual reproduction the division of cytoplasm is not possible ?
(a) Amitotic division
(b) Binary fission
(c) Division
(d) Budding
Q100.Which of the following group of animals show regeneration ?
(a) Planaria, Hydra, Starfish
(b) Starfish, Amoeba, Plasmodium
(c) Amoeba, Hydra, Paramoecium
(d) Amoeba, Planaria, Starfish
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