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Free download in PDF Plant Breeding Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams of Botany, Life-Science, Biotechnology etc. These short solved questions or quizzes are provided by Gkseries.
(21)
A nodal organisation in India to coordinate all the activities related to plant collection, introduction, documentation and sustainable management of germplasm
[A]
NBPGR
[B]
IARI
[C]
ICRISAT
[D]
IBPGR
(22)
The central Tuber Crops Research Institute located
[A]
Trivandrum
[B]
Kasargode
[C]
Coimbatore
[D]
Simla
(23)
Sewall Wright effect refers to random fluctuations in the gene frequencies in
[A]
Small population
[B]
Large population
[C]
Ecosystem
[D]
None of these
(24)
A scientist wants to study the viral effects on plants. Which of the following part of the plant should be excluded?
[A]
pith
[B]
shoot apex
[C]
phloem
[D]
cortex
(25)
Somatic hybridisation is achieved through
[A]
Grafting
[B]
Conjugation
[C]
Protoplast fusion
[D]
Recombinant DNA technology
Answer: Protoplast fusion
(26)
Heterosis is
[A]
Appearance of spontaneous mutations
[B]
Induction of mutations
[C]
Mixture of two or more traits
[D]
Superiority of hybrids over their parents
Answer: Superiority of hybrids over their parents
(27)
The new varieties of plants are produced by
[A]
Introduction and mutation
[B]
Selection and hybridisation
[C]
Mutation and Selection
[D]
Selection and Introduction
Answer: Selection and hybridisation
(28)
The quickest method of plant breeding is
[A]
introduction
[B]
Selection
[C]
Hybridisation
[D]
Mutation Breeding
Answer: Mutation Breeding
(29)
Who coined the term Mutation?
[A]
James Watson
[B]
Herman Joseph Muller
[C]
Hugo de Vries
[D]
None of the Above
(30)
The highest number in Ophioglossum reticulatum
[A]
2n=1260
[B]
2n=1206
[C]
2n=1026
[D]
2n=1620
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