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DNA replication was thought to be either conservative (two old strands of DNA stay together), semi-conservative (one old and one new strand of DNA), or dispersive (bit of old and newly replicated DNA in e...
-A genetic mutation within the lactase gene, for example base substitution, changes a codon -This codon codes for a different amino acid to be transcribed and translated-Therefore the sequence of amino ac...
A chemical neurotransmitter is released from the end of one neurotransmitter, and diffuses across the synapse to bind to transmitters on the next neurone to stimulate an electrical impulse.
DNA carries the genetic information that codes for instructions in our body and other organisms. DNA is deoxyribonucleic acid. It is found in the shape of a double helix. The conclusion that DNA is in the...
Calcium is found as an ion, Ca2+ in the extracellular space of the pre-synaptic neuron. The ions enter the neuron through voltage -gated channels after the depolarisation of the pre-synaptic neuron. This ...
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