Plant Breeding Objective Type Questions and Answers

Questions

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

View Answer

Answer: NBPGR

22 The central Tuber Crops Research Institute located

A Trivandrum

B Kasargode

C Coimbatore

D Simla

View Answer

Answer: Trivandrum

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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

View Answer

Answer: Small population

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

View Answer

Answer: shoot apex

25 Somatic hybridisation is achieved through

A Grafting

B Conjugation

C Protoplast fusion

D Recombinant DNA technology

View Answer

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

View Answer

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

View Answer

Answer: Selection and hybridisation

28 The quickest method of plant breeding is

A introduction

B Selection

C Hybridisation

D Mutation Breeding

View Answer

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

View Answer

Answer: Hugo de Vries

30 The highest number in Ophioglossum reticulatum

A 2n=1260

B 2n=1206

C 2n=1026

D 2n=1620

View Answer

Answer: 2n=1260

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