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1. The first step is the area of DNA to be replicated is 'unzipped' by DNA helicase. 2) The separation of the two strands forms a replication fork. 3) The strand that is oriented in the 3' to 5' direct...

Adaptations can be split into three categories: behavioural, physiological, and anatomical.
Behavioural adaptations are those that change the way an organism acts, such as how it int...

A synapse is a gap between two neurons and it can be thought of in 3 parts:
The presynaptic neuron - The neuron at the start of the synapse.
The synaptic cleft - The gap between the two neurons ...

When we think of immune defences, our minds may immediately jump to white blood cells such as macrophages or T lymphocytes, however there are actually many mechanisms by which our bodies fight infection b...

The method in which DNA replicates is called semi-conservative replication. Firstly, DNA helicase catalyses the break down of the hydrogen bonds between the base pairs in the DNA molecule. This partially ...