Science Quest 10 2015

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1 point

In recombinant DNA technology a plasmid vector is cleaved by

The same enzyme that cleave the donor DNA

The different enzyme other than that cleave the donor DNA

Modified DNA ligase

A heated alkaline solution

1 point

Although HCFC's and HFC's replace CFC's and reduce damage to ozone, they are problematic in that they __.

contribute to global warming

use up oxygen

are poisonous

damage equipment quickly

1 point

The stage in which the biological processes is used to purify water in a wastewater treatment plants is called

secondary sewage treatment

primary sewage treatment

wastewater reduction

biochemical reduction

1 point

Which of the following is not a major source of groundwater contamination?

agricultural products

landfills

septic tanks

All of the above are major sources of groundwater contamination

1 point

The codons which may present at 3¢ end of mRNA

UAA

UAG

UGA

Any one of these

1 point

How the biological oxygen demand gets affected with the increased presence of organic matter in water?

the oxygen demand increases

the oxygen demand decreases

the oxygen demand remains unchanged

None of the above

1 point

Which of the following is not tool of genetic engineering?

Vectors

Foreign DNA

Enzymes

GMO

1 point

Which of the following is not considered as part of water use planning?

water diversion projects

Water use planning considers all of the above issues

waste water treatment

storm sewer drainage

1 point

___ is a substitute for CFCs

carbon tetrachloride

hydrofluorocarbons

chlorofluorocarbons

ozone

10.

1 point

The most common plasmid vector used in genetic engineering is

PBR 330

PBR 325

PBR 328

PBR 322

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