This channel is dedicated to helping students revise for their Cambridge AS Biology examination. It contains content for the AS syllabus in chronological order and in some cases, fun facts that make Biology easily accessible to you as you navigate its heavy content. Excel in your Cambridge AS & A-level Biology examination using these videos as extra resources and feel free to post comments, thoughts and questions to interact with other learners. Good luck!
hi. really needed to know but in autosomal linkage, if say two heterozygous is crossed, will the phenotypic ratio comes out as something like 9:3;3;1 ?
at 10:49 , i didnt understand the note that says the bacteria prefer glucose to lactose so when glucose is present , the lac operon is repressed..... So does that mean in the presence of glucose molecules instead of lactose the repressor will remain binding itself to the operator ? Also does bacteria prefer glucose more than lactose?
Thank you very much Dr Demi I wish I'd found your channel earlier since today is my exam I had serious issues with this topic but you've made it very cheap God bless you Eshe ma Olorun a bukun yin
Hello Doctor Demi. I wanted to ask for the ATP made and net gain for the Kreb’s cycle became 2 when we only made one and in the summary on the slide for Kreb’s cycle it said 1 ATP is generated as well
