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mRNA is a molecule produced in the process of transcription, the first stage of protein synthesis from a DNA molecule. First, DNA Helicase, an enzyme, is used to break the hydrogen bonds holding the doubl...
Genetic fingerprinting is a technique that utilises the presence of highly repetitive non-coding DNA sequences in the human genome, known as variable number tandem repeats (VNTRs). These vary considerably...
The first stage of phagocytosis is named chemotaxis. This stage involves the migration of the phagocyte (a type of lymphocyte/ white blood cell) towards a pathogen. This occurs due to foreign antigens (no...
When DNA is replicated, the original DNA double helix is separated into two strands. Each strand is used as a template for complimentary free nucleotides to bind to and create new complimentary DNA strand...
Neurotransmission is the process that uses electrical or chemical signals to communicate between neurones, leading to the co-ordination of secretion, muscle contraction and organ and brain function in the...
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