MCQ
Giant mouse has been produced through:
- ATissue culture
- BGene differentiation
- CGene manipulation
- DAll of the above
Explanation:
A transgenic animal is that animal which carries the foreign gene. Foreign gene is inserted into the genome by the process of recombinant DNA technology and such DNA is called as recombinant DNA which is then transferred into embryos prior to birth. Normal mice cannot be infected with poliovirus due to lack of receptors as humans on the cell-surface So, the giant mouse is developed from a fertilized egg transformed with a recombinant DNA molecule containing the gene for human growth hormone which acts as a strong mouse gene promoter and consists receptors for poliovirus in their cell surface.
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$I.$ The total organic matter synthesised by the producers in the process of photosynthesis per unit time and area is known as gross primary productivity
$II.$ Net primary productivity is the weight of the organic matter stored by the producers in a unit area/volume per unit time