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
A.
mating of related individuals of same breed
In order to obtain virus-free plants through tissue culture the best method is
protoplast culture
embryo rescue
anther culture
anther culture
D.
anther culture
In meristem culture, the shoot apical meristem alongwith some surrounding tissue is grown in vitro. It is used for clonal propagation and recovery of virus free plants. It is also potentially useful in germ plasma exchange and long term storage of germ plasma through freeze preservation.
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
A.
alleviation of vitamin A deficiency
A plant in which a gene has been transferred through genetic engineering is called a transgenic plant and the gene, so transferred is called a transgene. Golden rice is a promising transgenic crop which when released for cultivation will help in alleviation of vitamin A deficiency.
The process of separation and purification of expressed protein before marketing is called
Upstream processing
Downstream processing
Bioprocessing
Bioprocessing
B.
Downstream processing
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
B.
crossing of two inbreed parental lines
G.H. Shull (1909) has shown that the hybrid vigour in maize is exploited by crossing of inbred parental line.