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51.

Which is not a method of vegetative propagationA. MicropropagationB. BuddingC. SowingD. Layering.

Answer» Correct Answer - C
Sowing is not a method of vegetative propagation.
Discussion
52.

Mango and Guava are propagated throughA. Tissue cultureB. GraftingC. Stem cuttingsD. Layring.

Answer» Correct Answer - B
Mango and Guava are propagated through grafting
Discussion
53.

Plant propagated by leaves isA. KalanchoeB. AgaveC. PotatoD. Gladiolus.

Answer» Correct Answer - A
Plant propagated by leaves is Kalanchoe and Bryophyllum.
Discussion
54.

Which is the correct example of the type of regeneration out of two major types ?A. `{:("Morphallaxis","Regeneration of two transversely cut equal pieces of a Hydra into two small hydras"):}`B. `{:("Epimorhosis","Replacement of old and dead erythrocytes by the new ones"):}`C. `{:("Morphallaxis","Healing up of a wound in the skin"):}`D. `{:("Epimorphosis","Regeneration of crushed and filtered out pieces of a planaria into as many new planarians"):}`

Answer» Correct Answer - A
Discussion
55.

A plant expected to have an age of 1500 years isA. EucalyptusB. SequolaC. Mangifera indicaD. Dalbergia sissoo

Answer» Correct Answer - B
A plant expeced to have an age of 1500 years is Sequoia.
Discussion
56.

Gemmule formation is sponges is useful inA. asexual reproductionB. Sexual reproductionC. parthenogenesisD. parthenocarpy.

Answer» Correct Answer - A
Discussion
57.

Stem cuttings are commonly used for the propagation ofA. MangoB. CottonC. RoseD. Banana

Answer» Correct Answer - C
Stem cuttings are commonly used in propagation of rose.
Discussion
58.

A scion is grafted to a stock. The quality of fruits produced wiIl be determined by the genotype of -A. ScionB. StockC. Both A and BD. None of the above

Answer» Correct Answer - A
A scion is grafted on a stock. Quality of fruits produced will depend upon genotype of scion.
Discussion
59.

Which statement best explains why invertebrates regenerate lost tissue more readily than most vertebrates do?A. Invertebrates contain specialized cells that produce the hormones necessary for this process.B. Invertebrate cells exhibit a higher degree of uncontrolled cell division than vertebrate cells do.C. Invertebrate animals reproduce asexually, but vertebrate animals reproduce sexually.D. Invertebrate animals have more undifferentiated cells than vertebrate animals have.

Answer» Correct Answer - D
Discussion