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Biology & Life Sciences — Grade 12 Quiz Questions
A sample of the 10 questions below — instant scoring and an explanation for every answer. No sign-in required to play.
Question 1
A laboratory technique used to make many copies of a specific DNA segment is called ___.
Apolymerase chain reaction (PCR)
Bgel electrophoresis
Cgene splicing
Dcloning by somatic transfer
Question 2
A technique that separates DNA fragments by size using an electric field through a gel is called ___.
APCR
Bgel electrophoresis
CCRISPR editing
Dchromatography
Question 3
The total variety of species within a given ecosystem or on Earth is referred to as ___.
Apopulation density
Bcarrying capacity
Ctrophic efficiency
Dbiodiversity
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