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Sterilization of tissue culture medium is done by
The technique that was employed to produce haploids of Datura was
Which one of the following chemical induces polyploidy in plant cells ?
Cross between unrelated group of organisms is called
By which of the following methods, new and better varieties of plants can be formed
In crop improvement programmes, virus-free clones can be obtained through
Which of the following is not used as a biopesticide ?
Xanthomonas campestris is not used as a biopesticide. Xanthomonas campestris is a plant pathogen that causes black rot in cotton plants.
What is antisense technology?
Which one of the following proved effective for biological control of nematodal disease in plants?
Paecilomyces is a cosmopolitan filamentous fungus which inhabits the soil, decaying plants, and food products. Some species of Paecilomyces are isolated from insect. The telomorphs of Paecilomyces are classified in the genera Cilromocleista, Talaromyces. Paecilomyeces is usually considered as a contaminant but may also cause infections in humans and animals.
Which one of the following is a viral disease of poultry ?
New castle disease (ND) is a highly contagious, generalised viral disease of domestic poultry and wild birds characterised by gastro-intestinal, respiratory and nervous signs.