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Plant Breeding & Genetics-1

Q.1
Naturally self pollinated crops having_________.

Cleistogamous flower
Heterogamy
Self incompatibility


Q.2
Progeny of single homozygous self pollinated crop known as__________.
Inbred line
Clone
Pureline


Q.3
Indian scientist who contributed for sugarcane research was__________.
C.T.Patel
T.S.Venkatraman
B.P.PaL


Q.4
First used X-rays for mutations in crop plants observed by _______.
Vavilov, N.J.
Stadler, L.J.
Borlaug, N.E


Q.5
Triticale contributed by _______.
Vavilov, N.J.
Mendel , G.
Rimpu


Q.6
A variety for general cultivation over a wide range of environmental conditions has _______.
Narrow adaptability
Wide adaptability
a & b

Q.7
High yielding semi dwarf varieties of wheat developed by_____________.

Borlaug, N.E
N.E.Vavilov
Davenport


Q.8
Eight centre of crop diversity identified by_______________.
Rimpu
Fairchild
N.E.Vavilov


Q.9
Male and female gametes are produced in specialized structure known as___________.
Staminate flower
Pistilate flower
Flower


Q.10
Flower having crolla, calyx, stamens and pistil known as_______.
Complete flower
Respiration
Evaporation


Q.11
Example of tuber is _______.
Ginger
Potato
Garlic


Q.12
Breeding method for development of disease resistant variety is_______.
Backcross
Pedigree
Bulk


Q.13
Simple and cheapest method for crop improvement is_______.
Mass selection
Introduction
Pureline selection


Q.14
Bajra is cross pollinated crop due to_______.
Protandry condition
Cleistogamy condition
Protogynae condition


Q.15
In back cross breeding, parent used only once is________ factor.
Recipient
Donor
a & b


Q.16
Concept of plant ideotype was first given by_______ effect.
Rimpu
Swaminathan
Donald


Q.17
Variety having wider adaptability, if it is developed through__________.
Pedigree method
Pure line selection
Bulk method


Q.18
Land race has_________.
Homozygosity and Homogenity
Heterozygosity
Homogenity


Q.19
GMS is maintained by___________.
MSms
msms
MSMS


Q.20
Cross pollination promotes_______.
Homozygosity
Heterozygosity
a & b


Q.21
Self pollination decreases______________.
Homozygosity
Heterozygosity
a & b


Q.22
Protected areas of great genetic diversity under natural condition______.
Gene bank bank
Field gene
Gene Sanctuary


Q.23
Trisomic having_______________ chromosome numbers.
2n-1
2n-2
2n+1


Q.24
Severe outbreak of disease occurs in crop plant due to_______.
Narrow genetic base
Failure of horizontal resistance
Broad genetic base


Q.25
If frequency of ‘p’ is 0.2 then Value of Heterozygous genotype (H) will be.
0.64
0.16
0.32

Number of score out of 25 = Score in percentage =


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