Aqa as biology paper - Study guides, Class notes & Summaries

2024 AQA AS-LEVEL BIOLOGY PAPER 1 MARK SCHEME

AQA AS BIOLOGY paper 1 specimen 2023 (7401/1)

AQA AS LEVEL JUNE 2023 BIOLOGY PAPER 2

aqa AS BIOLOGY Paper 1 (7401/1) May 2023 Question Paper. 1. Describe the primary structure of all proteins. 2. This question is about the genetic code. Define universal, non-overlapping and degenerate. 3. Describe how the appearance of the area containing DNA in a TEM image of a eukaryotic cell would differ from that shown in Figure 1. 4. Describe one difference between the structure of DNA in a prokaryotic cell and in a eukaryotic cell. 5. Streptococcus bacteria can infect the lungs when air i...

AS BIOLOGY Paper 1 June 2023 Official Question paper

AS BIOLOGY 7401/1 Paper 1 Mark scheme June 2023

Answer all questions in the spaces provided. box 0 1 . 1 What is a gene? [1 mark] 0 1 . 2 Describe how the production of messenger RNA (mRNA) in a eukaryote cell is different from the production of mRNA in a prokaryote cell. [2 marks] 0 1 . 3 Scientists produced a short, single-stranded, artificial nucleic acid, called PNA. The PNA binds to a small section of DNA. The scientists introduced PNA into cells and discovered that these cells produced less mRNA than cells that did not contain ...

AS BIOLOGY 7401/2 Paper 2 Mark scheme June 2023

Actual 2024 AQA AS BIOLOGY 7401/2 Paper 2 Merged Question Paper + Mark Scheme

AQA AS LEVEL BIOLOGY PAPER 1 MARK SCHEME JUNE 2023 (7401/1) Genuine and latest updated version