Spec J247
Revise OCR GCSE Biology 5.1.4 How genetic variants influence phenotype with the question bank, lessons, revision guides, and flashcards.
describe how genetic variants may influence phenotype: • in coding DNA by altering the activity of a protein • in non-coding DNA by altering how genes are expressed • in coding: DNA related to mutations affecting protein structure, including active sites of enzymes • in non-coding: DNA related to stopping transcription of mRNA (use of terms promoter, transcription factor not required)
