CBSE
Multiple Choice QuestionsIn order to obtain virus-free plants through tissue culture the best method is
protoplast culture
embryo rescue
anther culture
anther culture
Homozygous purelines in cattle can be obtained by
mating of related individuals of same breed
mating of unrelated individuals of same breed
mating of individuals of different breed
mating of individuals of different breed
Golden rice is a promising transgenic crop. When released for cultivation, it will help in
alleviation of vitamin A deficiency
pest resistance
herbicide tolerance
herbicide tolerance
Artificial selection to obtain cows yielding higher milk output represents
Stabilizing selection as it stabilizes this character in the population
Directional as it pushes the mean of the character in one direction
Disruptive as it splits the population into two one yielding higher output and the other lower output
Disruptive as it splits the population into two one yielding higher output and the other lower output
Conversion of milk to curd improves its nutritional value by increasing the amount of
Vitamin D
Vitamin A
Vitamin E
Vitamin B12
The two functional groups characteristic of sugars are
Hydroxyl and methyl
Carbonyl and methyl
Carbonyl and hydroxyl
Carbonyl and phosphate
The process of separation and purification of expressed protein before marketing is called
Upstream processing
Downstream processing
Bioprocessing
Bioprocessing
A ‘new’ variety of rice was patented by a foreign company, though such varieties have been present in India for a long time. This is related to
Co-667
Sharbati Sonora
Basmati
Lerma Rojo
In maize, hybrid vigour is exploited by
bombarding the protoplast with DNA
crossing of two inbreed parental lines
harvesting seeds from the most productive plants
harvesting seeds from the most productive plants
Which one of the following pairs is mismatched?
Pila globosa - pearl
Apis indica - honey
kenia lacca - lac
kenia lacca - lac
