Reproduction in Flowering Plants Multiple Choice Questions
1. Apomixis is
- Development of plant in darkness
- Development of plants without fusion of gametes
- Inability to perceive stimulus for flowering
- Effect of low temperature on plant growth
Answer: 2
2. Amphimixis is development of an organism obtained through
- Apospory
- Apogamy
- Fusion of gametes
- Without fusion of gametes
Answer: 3
3. Which is agamospermy
- Development of embryo without gametic Union
- Type of sexual reproduction in which there is no differentiation of male and female gamets
- Development of new individual from the union of two sperms
- Development of new individual directly without forming an embryo
Answer: 1
4. Adventitive polyembryony occurs in
- Poa
- Brassica.
- Allium
- Citrus.
Answer: 4
5. A sexual reproduction is related to
- Amphimixis.
- Agamospermy.
- Vegetative propagation
- Both 2 and 3
Answer: 4
6. Agamospermy includes
- Adventive polyembryony
- Recurrent apomixis
- Non recurrent apomixis
- All the above
Answer: 4
7. Agamospermy produces new plant through the formation of
- Bulbil
- Asexual embryo
- Gemma
- Parthenocarpy
Answer: 2
8. In nonrecurrent agamospermy the embryo is
- Nucellar
- Integumental
- Haploid
- Diploid
Answer: 3
9. Apospory is direct formation of
- Gametophyte from sporophyte
- Gametophyte from gametophyte
- Sporophyte from gametophyte
- Sporophyte from sporophyte
Answer: 1
10. Diplospory is development of embryo from
- Nucellus
- Integument
- Megaspore mother cell
- Megaspore
Answer: 3
11. Parthenogenesis is development of new individual from
- A single gamete without fertilization
2. Fertilization of female gamete with female gamete
- Fertilization of male gamete with male gamete
- Vegetative structure
Answer: 1
12. Union of two gametes of one sex is known as
- Apogamy
- Parthenoapogamy
- Parthenogamy
- Parthenogenesis
Answer: 3
13. Apogamy is direct formation of
- Sporophyte from sporophyte
- Sporophyte from gametophyte
- Gametophyte from sporophyte
- Gametophyte from gametophyte
Answer: 2
14.Parthenoapogamy involves
- Fusion of two gametic nuclei
- Fusion of three gamets
- Fusion of two vegetative nuclei
- Development of new plant from a single gametophytic cell.
Answer: 3
15. Reproduction which does not involve gametic union is
- Para sexual reproduction
- Apomixis
- Parthenogenesis
- Agamospermy
Answer: 2
16. Adventitive polyembryony is an example of
- Vegetative propagation
- Amphimixis
- Agamospermy
- Parthenogamy
Answer: 3
17. Vegetative propagation through budding occurs in
- Rose
- Agave
- Yeast
- Ginger
Answer: 3
18. Gemmae are a means of vegetative propagation in
- Colo cassia
- Spirogyra
- Marsilea
- Marchantia.
Answer: 4
19. Binary fission is a regular mode of multiplication in
- Yeast
- Bacteria
- Marchantia
- Mosses
Answer: 2
20. A part of root of dalbergia placed in the soil will
- Sprout
- Decay
- Developed underground complex
- Crude depending upon availability of food
Answer: 1
21. Which root will form a new plant
- Populus
- Dahlia
- Azadirachta
- Both 1 and 2
Answer: 4
22. It is more economical to propagate potato and artichoke through
- Pieces of tubers
- Whole tubers
- Seeds
- Tissue culture
Answer: 1
23. Onion is propagated through its
- Tubers
- Bulbs
- Seeds
- Rhizomes
Answer: 2
24. Bulbils are employed for multiplication of
- Bryophyllum
- Crocus
- Agave
- Strawberry
Answer: 3
25. Leaf tips help in vegetative propagation in
- Begonia
- Bryophyllum
- Sensevieria
- Adiantum caudatum
Answer: 4
26. Bryophyllum diagremontianum is characterized by the formation of
- Plantlets in leaf notches file attached to plant
- Plantlets from marginal notches when the leaf falls on the ground
- Buds in the marginal notches of leaves
- Plantlets on the leaves in the region of injury
Answer: 1
27. Corm is used as a means of vegetative multiplication in
- Ginger
- Gladiolus
- Banana
- Pineapple
Answer: 2
28. Banana is multiplied by means of
- Seeds
- Leaf cuttings
- Rhizome
- Offsets
Answer: 3
29. Leaf cuttings are used for quick vegetative propagation of
- Sansevieria
- Jasminum
- Tea
- BlackBerry
Answer: 1
30. Blackberry is multiplied through
- Stem cuttings
- Bulbils
- Leaf cuttings
- Root cuttings
Answer: 4
31. Stem cuttings are often treated with NAA before sowing in order to promote
- Sprouting of buds
- Rooting
- Layering
- Development of adventitious buds
Answer: 2
32. Leaf and stem cuttings are down
- Vertically with morphological apical end upwards
- Vertically with morphological Basal end upwards
- Laterally with morphological upper side upwards
- Laterally with morphological lower side upwards
Answer: 1
33. Air layering is performed in case of
- Jasmine
- Grapevine
- Gooseberry
- Litchi
Answer: 4
34. Many new plants are obtained through
- Air layering
- Mound layering
- Serpentine layering
- Both 2 and 3
Answer: 4
35. The stem branch used in layering is
- Upper branch
- Young branch
- Soft basal branch
- Hard basal branch
Answer: 3
36. In grafting,scion forms
- Shoot system
- Root system
- New plant
- Hybrid plant
Answer: 1
37. The technique of pegging a branch in soil is called
- Grafting
- Layering
- Cutting
- Vegetative propagation
Answer: 2
38. Bud grafting is commonly used in
- Litchi
- Pomegranate
- Rose
- Jasmine
Answer: 3
39. Diplospory is direct (nonmeiotic) development of diploid embryo sac from
- Diploid megaspore mother cell
- Diploid integument cell
- Diploid nucellar cell
- All the above
Answer: 1
40. Vegetatively propagated plants
- Show adaptive variations
- Better fitted in the struggle for existence
- Stouter than parents
- Clone of their parents
Answer: 4
41. Clone is
- Descendants of a single parent
- Vegetatively produced descendants of a single parent
- Sexually produced descendants of a single parent
- All the above
Answer: 2
42. Which one is propagated by cuttings
- Bougainvillea
- Tea
- Sansevieria
- All the above
Answer: 4
43. What is agamospermy
- Layering
- Grafting
- Adventive embryony
- All the above
Answer: 3
44. The phenomenon of embryo directly developing from a cell of embryo sac other than egg is
- Apospory
- Diplospory
- Apogamy
- Parthenogenesis
Answer: 3
45. Grafting is employed for better and quicker yield of good varieties of
- Apple
- Citrus
- Mango
- All the above
Answer: 4
46. Parthenogenesis is formation of
- Embryo without fertilization
- Embryo from Pollen sac
- Sporophytic plantlet from gametophyte
- Fruit without fertilization
Answer: 1
47. The smallest viable unit which can grow,multiply and form a plant in tissue culture is
- Chromosome
- Nucleus
- Cell
- Tissue
Answer: 3
48. Micropropagation is
- Raising of plants from a small tissue in culture
- Multiplication of small plants
- Propagation of small parts of organisms
- Indefinite maintenance of an organ or tissue
Answer: 1
49. Tissue culture is
- Growth of specific plant structures on artificial medium
- Growth and multiplication of cells on artificial medium
- Cryogenic maintenance of tissues
- Maintenance, growth and differentiation of cells, tissue and organ on artificial medium
Answer: 4
50. Part of the plant used for culturing is called
- Scion
- Explant
- Stock
- Callus
Answer: 2
51. Tissue culture technique was first attempted by
- Haberlandt
- Hanning
- Nobecourt
- Gaurheret
Answer: 1
52. The structure employed by white for first successful tissue culture was
- Haberlandt
- Nobecourt
- White
- Goutheret
Answer: 3
53. The structure employed by white for first successful tissue culture was
- Root of carrot
- Root of tomato
- Leaf cells
- Apical Meristem
Answer: 2
54. Callus is
- Tissue that forms embryo
- And insoluble carbohydrate
- Tissue that grows to form embryoid
- Unorganised actively dividing mass of cells in culture.
Answer: 4
55. Callus formation is prompted by
- Proper light and subculturing
- Darkness and subculturing
- Excess of NAA
- Absence of salts
Answer: 2
56. Differentiation of callous into plant parts is
- Embryogenesis
- Embryoid formation
- Morphogenesis
- Totipotency
Answer: 3
57. Who discovered that morphogenesis in culture medium is controlled by hormones
- Muir et al
- Vasil and Hildebrandt
- Skoog and Miller
- Helperin and Wetherell
Answer: 3
58. Embryoid culture technique was discovered by
- Guha and Maheshwari
- Skoog and Miller
- Muir et al
- Steward
Answer: 4
59.Embryoid is
- A miniature embryo
- Nonzygotic embryo formed in vitro culture
- Embryo raised in culture medium
- Cellular aggregate similar to embryo in appearance
Answer: 2
60. The concept of cellular totipotency was given by
- Steward
- Vasil and Hildebrandt
- Carlson et al
- Barski et al
Answer: 1
61. Ramet is
- Clone
- Individual of clone
- Cell aggregate
- Callus
Answer: 2
62. Guha and Maheshwari are famous for
- Shoot tip culture
- Protoplast fusion
- Embryoid culture
- Pollen culture
Answer: 4
63. The technique of protoplast fusion was developed by
- Helperin and Wetherell
- Carlson et al
- White
- Steward
Answer: 2
64. Explant is required to be disinfected before placing in culture. This is done by
- Autoclaving
- Ultraviolet rays
- Clorax or hypochlorite
- X rays
Answer: 3
65. Aseptic culture means
- Absence of life
- Presence of bacteria
- Absence of other organisms like microbes
- Parthenogenetic development
Answer: 3