The disease caused by the nematode Wuchereria bancrofti is transmitted by:
A. Sandfly
B. Culex mosquito
C. Aedes mosquito
D. Anopheles mosquito
Answer: Option B
Solution (By JKExamLibrary)
Lymphatic filariasis (elephantiasis) is caused by Wuchereria bancrofti and transmitted by Culex mosquito. Malaria is Anopheles, dengue Aedes, leishmaniasis sandfly.
Explanation:
Vitamin K is required for the gamma-carboxylation of clotting factors II, VII, IX, and X, including prothrombin. Deficiency leads to prolonged clotting time and hemorrhagic disorders.
Explanation:
Totipotency is the genetic ability of a single plant cell to divide and differentiate into all the cell types of the plant, ultimately generating an entire new plant. This property is the fundamental basis of plant tissue culture. Micropropagation is the technique used to rapidly multiply plants using this totipotency, often through the formation of callus and somatic embryos.
Explanation:
Nostoc is a cyanobacterium (blue-green alga) that fixes atmospheric nitrogen and is used as a biofertilizer in rice paddies. Anabaena azollae with Azolla is also common. Rhizobium is bacterial biofertilizer for legumes, Azospirillum is a free-living nitrogen-fixing bacterium. Trichoderma is a fungal biocontrol agent. BGA biofertilizers increase organic nitrogen in soil.
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