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Name two structural differences between arteries and veins.

Arteries have thick, elastic, muscular walls whereas veins have thin walls with few elastic fibres. Arteries need these properties to give them the strength and elasticity needed to cope with the high pressu...
JW
Answered by Jennifer W. • Biology tutor
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How does cell division occur?

Cell division can be divided under three main phases: - Interphase: actvie period in life of a cell when metabolic reactions occur, with protein synthesis and DNA replication - Mitosis: it is divided in four...
TP
Answered by Thea P. • Biology tutor
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Outline the process of gene therapy using a named example.

Gene therapy is defined as a set of strategies or procedures that uses Recombinant DNA technology to insert DNA into a patient in order to correct a genetic disease. The result is an altered genotype where t...
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Answered by Giulia T. • Biology tutor
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What is a mutation and what are they caused by?

A mutation is a change in the base sequence of DNA. A mutation can be caused by a mistake during replication of DNA or by mutagenic agents. Mutagenic agents include chemicals that can act as bases or radiati...
NK
Answered by Nadine K. • Biology tutor
4667 Views

What is transcription?

Transcription is the process of making DNA into mRNA. DNA first has to be transcribed into messenger RNA (mRNA), this mRNA can then be translated into a protein (amino acids). DNA Polymerase (an enzyme) bind...
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Answered by Nadine K. • Biology tutor
7465 Views