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Asexual Reproductive In flowering plants NEET Questions and Answers PDF
1. Apomixis can be defined as
(1) sexual reproduction
(2) reproduction that does not involve meiosis and fertilization
(3) reproduction where seeds are formed but without meiosis and fertilization
(4) multiplication of plants simply by vegetative methods
- The form of vegetative reproduction of plants where seeds are formed without fusion of gametes is called
(2) apogamy
(1) agamospermy
(4) polyspermy
(3) syngamy - The development of embryos directly from the cells of nucellus is known as
(1) parthenogenesis
(2) parthenocarpy
(3) polyembryony
(4) polyspory - The plants produced as a result of vegetative reproduction are
(1) genetically similar to parent plants
(2) both genetically and morphologically similar to parent plants
(3) dissimilar, both genetically and morphologically
(4) none of these - Which one of the following may not be a modification of stem ?
(2) Runner
(1) Rhizome
(4) Bulbils
(3) Offset - A method in which roots are induced on the stem while it is still attached to the parent plant is called
(2) layering
(1) cutting
(4) grafting
(3) vivipary - During grafting root stock is generally derived from a plant
(1) resistant to diseases
(2) efficient in water and mineral absorption
(3) that grows strong and healthy branches
(4) all of the above - Clones are
(1) genetically similar to the parent plant
(2) plants raised from a single parent
(3) population of plants produced vegetatively
(4) all of the above. - If the plant fails to develop viable seeds, these could best be grown by
(2) sexual methods
(1) cuttings
(4) micropropagation
(3) grafting8 - A genetically uniform population of plants raised from a single plant constitutes
(2) clone
(1) hybrid
(4) stock
(3) population - Plants identical to mother plant can be obtained from
(2) its fruits
(1) its seeds
(4) hybridization
(3) stem cuttings - Micropropagation is
(1) production of plants from spores
(2) propagation of microorganisms
(3) technique of obtaining small plants
(4) technique of obtaining new plants by cultivating cells or tissues in culture medium - Micropropagation is carried out by
(1) hybridization
(2) genetic recombination
(4) tissue culture
(3) cuttings
14, One of the quick methods of obtaining large number of genetically identical plants is through
1) layering
(2) cutting
(3) micropropagation
(4) seeds
15.Stem cuttings are commonly used for propagation in
(1) cotton
(2) onion
(3) banana
(4) sugarcane
16, Banana plant develops from
(1) rhizome
(2) seeds
(3) sucker
(4)corm
- Vegetative growth of potato is by
(1) rhizome
(2) bulb
(3) stem
(4) tuber
18.Amphimixis is the development of an organism obtained through
(1) apogamy
(2) apospory
(3) fusion of gametes
(4) without fusion of gametes
- Parthenogenesis is development of new individual from
(1) a single gamete without fertilization
(2) fertilization of a male gamete by another male gamete
(3) fertilization of a female gamete by another female gamete
(4) vegetative organs - Parthenoapogamy involves
(1) fusion of two male gametes
(2) fusion of three gametes
(3) development of a new plant from a single gametophytic cell
(4) fusion of two vegetative nuclei - Adventive polyembryony is an example of
(1) vegetative propagation
(2) amphimixis
(3) agamospermy
(4) parthenogeny - Blackberry is multiplied through
(2) bulbils
(1) stem cuttings
(4) root cuttings
(3) leaf cuttings - Leaf cuttings are used for quick propagation of
(2) Tea
(1) Jasminum
(4) blackberry
(3) Sanseviera - The branch of stem used in layering is
(2) young branch
(1) upper branch
(3) soft basal branch
(4) hard basal branch - Grafting is employed for better and quicker field of good varieties of
(2) lemon
(1) apple
(4) all the above
(3) mango - The technique of obtaining large number of plantlets by tissue culture method is called
(1) macropropagation
(2) plantlet culture
(3) organ culture
(4) micropropagation - Heaping of earth around base of stem in Potato is meant for
(1) Preventing exposure of roots
(2) Providing extra support to delicate stem
(3) Inducing development of more auxiliary shoots
(4) Making more water available - Ginger is multiplied vegetatively by
(2) Tuber
(1) Rhizome
(4) Bud
(3) Stem - Bryophyllum is multiplied vegetatively by
(1) Roots
(2) Leaves
(3) Stem branch
(4) Rhizome
(5) Tuber - In which one pair both the plants can be vegetatively propagated by leaf segments ?
(1) Agave and Kalanchoe
(2) Bryophylum and Kalanchoe
(3) Asparagus and Bryophyllum
(4) Chrysanthemum and Agave - A scion is grafted on the stock. Quality of fruits produced will depend upon genotype of
(1) Scion
(2) Stock
(3) Both (1) and (2)
(4) None of these - Vegetative propagation in Mint occurs by
(2) Runner
(1) Sucker
(4) Rhizome
(3) Offset - Find out wrongly match pair
(2) Leaf buds – Banana
(1) Tuber Potato
(3)Rhizome- Ginger
(4) bulbil – Agave - Runners help 1in vegetative propagation in
(2) potato
(1) onion
(4) grass
(3) ginger - The motile asexual reproductive unit is called
(2) aplanospore
(1) zoospore
(4) microSpore
(3) zygospore - Which part would be most suitable for raising virus-free plants for micropropagation ?
(1) Bark
(2) Vascular tissue
(3) Meristem
(4) Node
ANSWER
1. (2) 2. (1) 3. (3)4. (2) 5. (4)6. (2)7. (4)8. (4) 9. (4)10. (2)11. (3)12. (4) 13. (4) 14. (3)15. (4)16. (1)17. (4)18. (3) 19. (1) 20. (4)21. (3)22. (4) 23. (3)24. (3)25. (4)26. (2)27. (3) 28. (1)29. (2)30. (2)31. (2)32. (1) 33. (2)34. (4)35. (1) 36. (3).