1. Ability of plants to maintain a favourable internal water balance under moisture stress is known as:
A) Drought escape
B) Drought avoidance
C) Drought tolerance
D) Drought hardening
2. Lysimeter is used to measure:
A) Stomatal aperture
B) Tissue water potential
C) Rate of photosynthesis
D) Salt tolerance
3. Psychrometer is used to measure:
A) Rate of photosynthesis
B) Salt tolerance
C) Stomatal aperture
D) Tissue water potential
4. Drought is measured in terms of:
A) Leaf water retention
B) Photosynthesis
C) Yield performance
D) Root length of seedlings
E) All the above
5. In plants, tissue water potential is measured with the help of:
A) Porometer
B) Psychrometer
C) Lysimeter
D) None of the above
6. Stomatal aperture is measured with the help of:
A) Psychrometer
B) Porometer
C) Lysimeter
D) None of all above
7. Pitic is a drought resistance variety of:
A) Barley
B) Maize
C) Wheat
D) Sorghum
8. Drought resistance is associated with:
A) Morphological features
B) Physiological features
C) Biochemical factors
D) All of the above
9. Under drought conditions, there is an increase in:
A) Abscisic acid content
B) Ethylene level
C) Proline level
D) All of the above
10. Drought is indicated by:
A) Leaf rolling
B) Increase in abscisic acid level
C) Increase in ethylene level
D) Increase in proline level
E) All of the above
Additive gene action includes:
A) Additive genetic variance
B) Additive x Additive type of epistasis
C) Both A) and B)
D) None of the above
Who divides genetic variance into three components viz., additive, dominance, and epistatic:
A) Mather
B) Wright
C) Fisher
D) None of the above
First stability model was developed by:
A) Freeman and Perkins
B) Perkins and Jinks
C) Eberhart and Russel
D) Finlay and Wilkinson
Buffering capacity of a genotype to environmental fluctuation is known as:
A) Adaptation
B) Homeostasis
C) Acclimatization
D) All of the above
Triple test cross was proposed by:
A) Jinks and Jones
B) Freeman
C) Fisher
D) Kearsey and Jinks
Triple test cross analysis is an extension of:
A) Diallel mating design
B) LinexTester mating design
C) North Carolina Design 2
D) North Carolina Design 3
Most powerful design to evaluate biparental crosses is:
A) North Carolina Design 1
B) North Carolina Design 2
C) North Carolina Design 3
D) Both A) and C)
Six parameter model of generation mean analysis was developed by:
A) Hayman
B) Fisher
C) Jinks and Jones
D) None of the above
Six parameter model of generation mean analysis is used when:
A) Epistasis is present
B) Epistasis is absent
C) In both the conditions
D) None of the above
Five parameter model of generation mean analysis requires:
A) Three crop seasons for complete study
B) Four crop seasons for complete study
C) Two crop seasons for complete study
D) Six crop seasons for complete study
Scaling test is used to:
A) Determine the presence or absence of epistasis
B) Determine the type of epistasis
C) Both A) and B)
D) None of the above
The significance of scale “C” in scaling test indicates:
A) Additive x Additive type of epistasis
B) Additive x Dominance type of epistasis
C) Dominance x Dominance type of epistasis
D) All of the above
Generation mean analysis is based on:
A) First order statistics
B) Second order statistics
C) Third order statistics
D) Both A) and C)
Gene pool concept was proposed by:
A) Harlan and de Wet
B) Strausberger
C) Weismann
D) None of the above
Gene pool-4 also known as:
A) Gene ocean
B) GP-4
C) Both A) and B)
D) None of the above
What is true about land races:
A) These are primitive varieties
B) Evolved through both natural and artificial selection
C) They are storehouse of genetic variability
D) All of the above
In situ germplasm conservation includes:
A) Natural park
B) Biosphere reserve
C) Gene sanctuary
D) All of the above
Who categorized seeds into orthodox and recalcitrant:
A) Brown
B) Robert
C) Frankel
D) None of the above
Type of germplasm collection which is actively used in breeding programme:
A) Base collection
B) Active collection
C) Working collection
D) None of the above
The concept of core collection was put forth by:
A) Frankel
B) Brown
C) Both A) and B)
D) Robert
IW stands for:
A) Internet web
B) Indian warriors
C) Indigenous wild
D) None of the above
TN1, IR8 and IR28 rice varieties are:
A) Domesticated varieties
B) Hybridization based varieties
C) Secondary introduced varieties
D) Primary introduced varieties
NBPGR was established in the year:
A) 1976
B) 1975
C) 1977
D) 1974

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