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AQA A-level Biology Paper 2 - 13th June 2025 [Exam Chat]

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How did your AQA A-level Biology Paper 2 exam go today?

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AQA A-Level Biology Paper 2 (7402/2) - Friday 13th June 2025 [exam chat]

Welcome to the exam discussion thread for this exam.
Introduce yourself! Let others know what you're aiming for in your exams, what you are struggling with in your revision or anything else.

Wishing you all the best of luck.

General Information
Date/Time: 13th June 2025 AM
Length: 2hrs

Good luck!
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Top student reactions to A-level Biology Paper 2

(edited 8 months ago)

Reply 1

Lillyismunefg

4

first

Reply 2

username6129468

9

use the like as a dislike button for topic 8 (gene technology)

Reply 3

Gabi26

11

I don't mind Topic 8, I think its quite interesting and fairly understandable, I'd say I don't like ecosystems and populations more.

Reply 4

SH124MA

10

guys are we meant to know about the mechanism involving miRNA as well as siRNA cause in the aqa approved textbook it only mentions siRNA?

Reply 5

lucymedic2007

8

Original post

by SH124MA

guys are we meant to know about the mechanism involving miRNA as well as siRNA cause in the aqa approved textbook it only mentions siRNA?

both are explicitly part of the spec under:
“The roles of transcription and translation in the control of gene expression, including the roles of miRNA and siRNA in RNA interference (RNAi).” this is what chat gpt said so i assume so

Reply 6

SH124MA

10

Original post

by lucymedic2007

both are explicitly part of the spec under:
“The roles of transcription and translation in the control of gene expression, including the roles of miRNA and siRNA in RNA interference (RNAi).” this is what chat gpt said so i assume so

oh can't trust chatgpt icl cause in the spec it actually says "In eukaryotes and some prokaryotes, translation of the mRNA produced from target genes can be inhibited by RNA interference (RNAi)" thats why im wondering cause the aqa approved textbook talks about siRNA only but other sources also mention miRNA and I don't wanna learn useless info that's not gonna be assessed ygm

Reply 7

ked139

6

Original post

by SH124MA

oh can't trust chatgpt icl cause in the spec it actually says "In eukaryotes and some prokaryotes, translation of the mRNA produced from target genes can be inhibited by RNA interference (RNAi)" thats why im wondering cause the aqa approved textbook talks about siRNA only but other sources also mention miRNA and I don't wanna learn useless info that's not gonna be assessed ygm

You don't need to know the difference between them, just that they both must become single stranded, they bind to the comp base seq on the target mRNA , then either inhibit translation or hydrolyse the mRNA (this requires the use of an enzyme known as RISC)

Reply 8

SH124MA

10

Original post

by ked139

You don't need to know the difference between them, just that they both must become single stranded, they bind to the comp base seq on the target mRNA , then either inhibit translation or hydrolyse the mRNA (this requires the use of an enzyme known as RISC)