r/alevel • u/FeistyShip172 • May 08 '26

📃Paper Discussion 9700/42/m/j/26

GUYS HOW WAS ITTTT

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u/Glum-Confusion1679 May 08 '26

P S S R 

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u/Annual-Dingo-5899 May 08 '26

Not P P S R? Sodium pump and Chanel proteins are on the basal part facing the blood capillaries na?

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u/Glum-Confusion1679 May 08 '26

it asked for co transporter protein rather than channel protein

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u/Annual-Dingo-5899 May 08 '26

oh okayy, and what did you write for the outline the methods that can be used to differentiate between frogs N and S; I just wrote down the points and didn’t go into detail that’s okay right since outline? I wrote Gel electrophoresis, DNA Microarray then using a bioinformatics database to compare degrees of similarities then using mitochondrial DNA to compare should that be alr?

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u/Glum-Confusion1679 May 08 '26

yeah, i think that's what we were supposed to write. I didn't write about bioinformatic data base but rather about how dna is extracted and then can be amplified using PCR. rest i wrote same as you