How does DNA replicate?
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 the pores of the nucleus is recruited after manufacturing in the nucleolus, it has the enzyme RNA polymerase copy the DNA bases onto the RNA (of course replacing T with U). RNA exits to to the cytoplasm a vesicle will transport it the the golgi apparatus, this is able to translate the triplet bases (codons) into amino acids it is made into a protein from here
TR
Related Biology A Level answers
All answers ▸Why does an action potential travel faster in a myelinated neurone compared to a non-myelinated neurone?
Describe the process of mRNA formation
Putting bee honey on a cut kills bacteria. Honey contains a high concentration of sugar. Use your knowledge of water potential to suggest how putting honey on a cut kills bacteria. (AQA BIOL1)
In a population of 1000 lemmings there are two alleles for skin colour, the dominant colour being cream (C) and the recessive being white (c). 350 individuals have white skin. Use Hardy-Weinberg to predict the number of homozygous recessive individuals.