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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$A$. The flowers of Vallisneria are colourful and produce nectar.
$B$. The flowers of water lily are not pollinated by water.
$C$. In most of water-pollinated species, the pollen grains are protected from wetting.
$D$. Pollen grains of some hydrophytes are long and ribbon like.
$E$. In some hydrophytes, the pollen grains are carried passively inside water.
Choose the correct answer from the options given below.