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Do we not need to know further detail how trisomy or polyploidy occurs

watching this 2 hours before my a level bio paper 2, thanks for your help.

love your video really helpful thankyou

Thank you so much for your help - your style of videos are really helpful!

Thank you so much for these video ❤❤

This is the best yet channel for aqua a level bio. Revising for paper 1 ❤

Required practical 4 pls

What an amazing video

hello, is this everything you need to know for exams, also do you thibk I have time to go through all of AS content in 2 weeks and 2 days, not sure if I could

what organelle isletter M than on the first question at 20.19 seconds?

how are you so good at answering exam questions, i know the content but find it really difficult to apply my knowledge

u forgot to mention amylose and amylopectin in the starch part... 6:53

You're a life saver but how can CAG be a VNTR if CAG codes for an amino acid ? because VNTRs are introns which are non coding sequences

Im so grateful for you thank you❤

(:

i dont understand why we divide 15mins by 4 wouldnt it be multiply

even 3 years on, you are extremely helpful and better than most teachers.

could u go through the other required practicals for bio?

How did you know it was a comparison question for q5 c ii?

this topic is so long😪

33:45 don’t u reject null hypothesis when the p value (the t value) is less than critical value

Wait I'm confused. I thought that Tumour Suppressor Genes produce proteins that inhibit continuous cell growth, not division.

Hi thank you for all your help, just wanted to ask if all your topic videos are according to the specifications needs and if watching them is enough for covering content then off to exam questions ? Thank you!

thanks video was very helpful

hi, I dont get how to find out the tangent at 24:33 ....?

lam getting interested and want to know more. 9:30pm

what are some control variables for this experiment?

i dont know why you have so little subscribers best revision channel out there

In the very first exam question, it asks how mRNA is produced in the Nucleus. I thought you would right about Splicing as that makes mature mRNA from Pre-mRNA. However, you said you need to write about transcription, but why when in transcription Pre-mRNA is produced not mRNA????

please explain, what is HA^-1 ?

at 23:53 i dont understand the answer you put in how does promotor DNA mean the sheep isn't going to be killed?

How is the rate of mutation affected by the environment? 13:14

Thank you - my teacher taught this topic today , I had no idea what’s going on … you explained it so well 🎉😊

I love this video! thank you. just a quick question, ive seen some other synapse videos and they dont mentioned acetylcholine. why is that?

Your explanations are on point I like how you explain even the smallest details really helpful

this was so helpful thank you so much

05:59 states that one of the adaptations for gas exchange in fish is that the filaments are thin increasing the rate of diffusion. doesnt the rate of diffusion decrease becuase that is what I saw in the mark scheme???

hello, what about how to observe the position of starch grains in the cells when using an optical (light) microscope. I dont think it was mentioned in the video? can someone please help?

BB

wow wow wow. I love watching your videos so much. everything you say is exaclty as it is from the mark scheme. you dont include too much information only excalty what is needed specifically from the mark scheme. making it easy and simpler to understand the information without too many other points which arent even worth being mentioned. so thank you!:)

I dont get much about the ester bonds. can someone please please help me:)

at 5. on mass flow hypothesis, shouldn't it be water exit by osmosis then decreased hydrostatic pressure? it doesnt make sense to me

hi thank u so much for this video but where can i find the rest of these questions (eg: 3.1 , 3.2 , 3.3 ) so the whole question of each graph that you have explained

Isn’t the sarcoplasm the cytoplasm of muscle cells? Why does it say it’s the cell itself?

good content produced I just feel like you're reading straight off the specification and not quite explaining things in detail

for the last question could i explain the curves plateau because at higher temperatures(outside the optimal range) the hydrogen and ionic bonds in the enzymes tertiary structures are affected resulting in change in shape of active site, therefore the enzymes used in the reaction wont be able to form E-S complexes and therefore rate of reaction slows down, or does it have to be because substrate is used up.

hii amazing vid but did u mention vesicles?? i didnt hear much on it and dont know if its required knowledge lol

this was amazing

This video was so helpful! I've got a biology test on it tomorrow, so this really helped me. Thank you 👍🏻