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The first stage involves transcription within the nucleus, the gene of interest is unzipped from it's double helix by enzyme DNA helicase. once single stranded a piece of mRNA which is able to fit through th...

Virus: This type of malware is able to self-replicate, it is deployed once the user opens its host files- possibly in the form of an E-mail attachment. Once opened the virus will become a memory resident, on...

The electric transmission reaches the presynaptic terminal and action potential then causes these vesicles to fuse with the presynaptic membrane before they are released to diffuse across the synapse. They t...

The verbs 'ser' and 'estar' both translate to the English 'to be'. But don't worry! There are some key differences that help us know which Spanish verb we should use. 'Ser' is used to describe permanent char...

Question7. A complex number z is given by z = a + 2i where a is a non-zero real number. (a) Find z2 + 2z in the form x + iy where x and y are real expressions in terms of a. (4) Given that z2 + 2z is real, (...