Mention two advantages for preferring CNG over diesel as an automobile fuel.
Two advantages for preferring CNG over diesel as an automobile fuel are:
(i) CNG is cheaper than diesel.
(ii) CNG burns efficiently as compared to diesel and causes less of air pollution.
A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.
Name a free-living and a symbiotic bacterium that serve as bio-fertilizer. Why are they called so?
Name the calls HIV (Human Immunodeficiency Virus) gains entry into after infecting the human body. Explain the events that occur in these cells.
Following are the features of genetic codes. What does each one indicate ? [2]
Stop codon; Unambiguous codon; Degenerate codon; Universal codon.