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Biology 12 Ch-27 BIOLOGY AND HUMAN WELFARE- 25
1.
When did plant breeding started?
In 15th century
In 21th century
In 20th century
In 19 century
2.
When did plant breeding started?
After the rediscovery of Newton’s work
After the discovery of Isaac’s work
After the rediscovery of Mendel’s work
After the discovery of Mendel’s work
3.
Today plant breeding is based on................?
Genetics
Fishing
Colony
Palaeontology
4.
Which of the following method is used for crop improvement?
Hybridization
Acclimatization
Selection
All
5.
Which of the following method is used for fruit improvement?
Acclimatization
All
Hybridization
Selection
6.
Which of the following method is used for crop improvement?
Backcross
Hybridization
Acclimatization
All
7.
Which of the following method is used for fruit improvement?
Hybridization
Backcross
All
Acclimatization
8.
What is the process of introducing new plants from growing place to new locality called?
Backcross
Hybridization
Plant introduction
Husbandry
9.
What is the adjustment of plants to their new locality called?
Husbandry
Backcross
Acclimatization
Hybridization
10.
What is Acclimatization?
Watering the plants
Selection of plant
Backcross of plant
Adjustment of plants to their new locality
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