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Outline the process of DNA replication

During DNA replication the double-stranded DNA helix is separated to single strands by the enzyme DNA helicase. This exposes the nucleic acid bases that encode the genetic sequence. Replication is then initi...
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Answered by Lorna W. • Biology tutor
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How do we pick up maximum marks in each question?

The first thing you should be doing when you read a question is to make sure that you understand exactly what it is asking from you for which subject knowledge is extremely important. Underlining or highligh...
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Answered by Amaarah H. • Biology tutor
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Briefly describe the main differences between fast and slow twitch muscles and how does this relate to their specific functions.

First of all, slow-twitch (type I) muscle fibres have a large number of mitochondria allowing them to carry out aerobic respiration at a high rate by providing a site for the Kreb's cycle (taking place in th...
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Answered by Sebastian G. • Biology tutor
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Why does the equation x^2+y^2=r^2 form a circle in the Cartesian plane?

The general line equation in the Cartesian plane is given by a x+b y=c, where a, b, and c are given constants. This means that all (x_0, y_0) points that are situated on the line satisfy the equation a x_0+b...
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Answered by Bálint S. • Maths tutor
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Describe the process by which an action potential is propagated across a cholinergic synapse

A cholinergic synapse is one which uses acetycholine (ACh) as it's neurotransmitter. When the action potential reaches the synaptic knob at the presynaptic cell it leads to voltage gated Ca 2+ channels in th...
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Answered by David M. • Biology tutor
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