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Plant Breeding & Genetics-6

Q.1
Naturally cross pollinated crops having_________.

Cleistogamous flower
Homogamy
Chasmogamy


Q.2
Progeny of artificially selfed homozygous plant in cross pollinated crop known as_________.
Inbred line
clone
Pureline


Q.3
Scientist , who contributed varieties in wheat crop was________.
C.T.Patel
Shull
B.P.PAL


Q.4
First interspecific hybrid developed by____________.
Vavilov, N.J.
Stadler, L.J.
Thomas Fair Child


Q.5
Eight centre of crop diversity identified by_______.
Johannsen
Vavilov, N.J.
Mendel , G.


Q.6
Pure line variety has_______.
Narrow adaptability
Wide adaptability
Both

Q.7
First used X-rays for mutations in crop plants by_________.

Borlaug, N.E
Stadler, L.J.
Davenport


Q.8
Triticale developed by__________.
Shull
Fairchild
Rimpu


Q.9
In gametophytic self incompatibility , cross between S1S2 X S2S3 produces________.
S1S2, S2S2 progeny
S1S3, S2S3 progeny
S1S2,S1S3,S2S2,S2S3 progeny


Q.10
Flower having stamens and pistil known as______.
Complete flower
Incomplete flower
Perfect flower


Q.11
The process of production of female gamete_______.
Mega sporogenesis
Micro sporogenesis
Mega gametogenesis


Q.12
Example of bulb is_______.
Ginger
Garlic
Onion


Q.13
Development of embryo either from synergid or antipodal cells of embryosac.
Apogamy
Adventive sporophytic
Apospory


Q.14
Breeding method used for development of high yielding variety having wider adaptability is_______.
Backcross
SSD
Bulk


Q.15
A method for crop improvement, where Information on ancestry is obtained in is__________.
Introduction
Pureline selection
Pedigree method


Q.16
CMS line is maintained by_____________.
‘B’ Line
‘A’ Line
‘R’ Line


Q.17
Maize is cross pollinated crop due to_______.
Protandry condition
Protogynae condition
Cleistogamy condition


Q.18
In back cross breeding, parent used repeatedly for crossing is________.
Recipient
Donor
Both


Q.19
Variety has narrow adaptability, if it is developed through__________.
Bulk method
Mass selection
Pedigree method


Q.20
If frequency of ‘p’ is 0.4 then Value of Heterozygous genotype (H) will be__________.
0.24
0.60
0.48


Q.21
Land race has________.
Homozygosity and Homogenity
Homogenity
Heterozygosity


Q.22
The variation which remains unaltered by environmental changes______.
Phenotypic
Genotypic
Both


Q.23
GMS is maintained by________.
msms
MSMS
MSms


Q.24
Protected areas of great genetic diversity under natural condition_______.
Gene bank
Gene Sanctuary
Field gene bank


Q.25
Nullisomic having chromosome numbers ________.
2n-1
2n
2n-2

Number of score out of 25 = Score in percentage =


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