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Biology 12 Ch-27 BIOLOGY AND HUMAN WELFARE- 32
1.
Which of the following plants can propagate vegetatively?
Apple
Sugar cane
Mango
All of these
2.
In which plants, heterohybrids retain their desirable characters indefinitely?
Mango
Sugar cane
Apple
All of these
3.
What is crossing of hybrid with one of its parents called?
Hybridization
Husbandry
Selection
Backcross
4.
What is crossing of hybrid with individual called that is genetically similar to its parent?
Backcross
Husbandry
Hybridization
Selection
5.
In which of the following, backcross is used?
Horticulture
Forestry
Fishery
Medicine
6.
In which of the following, backcross is used?
Animal breeding
Forestry
Medicine
Fishery
7.
In which of the following, backcross is used?
Production of gene knockout organisms
Fishery
Forestry
Medicine
8.
An F1 hybrid crossed with genetically similar individual (to parents) can be termed as..........?
CB@2#
BC@2#
CB@1#
BC@1#
9.
By which of the following, backcross hybrids are described?
Acronym “BC”
Acronym “XB”
Acronym “CB”
Acronym “BX”
10.
An F1 hybrid crossed with one of its parent can be termed as..........?
CB@2#
CB@1#
BC@1#
BC@2#
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