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CF is a homozygous recessive condition. This means that it is inherited, ie a child gets the condition by the genetic material passed on to it from its parents. Let's call the faulty allele f (which is al...

Electrons occupy every orbital in each subshell once and then occupy the full orbital with both electrons 

Neutral 

Amino acids are coded for by specific codons. There are some instances where some particular amino acids can be coded for by more than one codon (codon being three nucleotides bonded together). This is kn...

Language: To analyse language we analyse the poet's choice and use of lexis. It's helpful to ask: What connotations does a word carry and why might the poet have chosen to use this specific word? What lan...