Top answers

Biology
A Level

What is evolution and why does it happen?

Evolution is a constant process that allows life forms to adapt to a changing environment.

How does the environment change, though? 

Well, there are several sources...

MB
Answered by Mathilda B. Biology tutor
3396 Views

How is DNA transcribed into mRNA?

The gene to be transcribed s unwound and unzipped using the enzyme DNA helicase which breaks the hydrogen bonds between complementary bases. Activated RNA nucleotides then bind to the exposed complemen...

SJ
Answered by Shivali J. Biology tutor
7285 Views

What factors affect the rate of photosynthesis in plants?

Three main factors affect the rate of photosynthesis:

Light intensity: Increasing light intensity will increase the rate of photosynthesis, until the maximum amount of li...

BH
Answered by Brennen H. Biology tutor
30916 Views

What is the difference between DNA and RNA

DNA or DeoxyriboNucleic Acid, is a nucleic acid made of two polynulcleotide strands (double stranded). These polynucleotide strands consist of a phosphate group, five-carbon sugar (stable 2-deoxyribose...

RD
Answered by Robyn D. Biology tutor
3463 Views

How are enzymes inhibited?

There are two types of enzyme inhibition: competitive and non-competitive. 

Competitive inhibition:
This occurs when an enzyme's active site is filled by an inhibit...

BM
Answered by Beth M. Biology tutor
5375 Views

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