2
MCQ (Single Correct Answer)
A group of animals which are related by descent and share many similarities are referred to as
A
breed
B
race
C
variety
D
species
3
MCQ (Single Correct Answer)
Inbreeding is carried out in animal husbandry because it
A
increases vigour
B
improves the breed
C
increases heterozygosity
D
increases homozygosity
4
MCQ (Single Correct Answer)
Sonalika and Kalyan Sona are varieties of
A
wheat
B
rice
C
millet
D
tobacco
5
MCQ (Single Correct Answer)
Which one of the following is not a fungal disease?
A
Rust of wheat
B
Smut of bajra
C
Black rot of crucifers
D
Red rot of sugarcane
6
MCQ (Single Correct Answer)
In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because
A
the dividing cells are virus resistant
B
meristems have antiviral compounds
C
the cell division of meristems are faster than the rate of viral multiplication
D
viruses cannot multiply within meristem cell(s)