Study guides, Class notes & Summaries

Biology 7401/1 Paper 1 Mark scheme Complete with Answers Verified and Graded 2024 Update Last document update:   ago

Mark scheme instructions to examiners 1. General The mark scheme for each question shows: • the marks available for each part of the question • the total marks available for the question • the typical answer or answers which are expected • extra information to help the examiner make his or her judgement and help to delineate what is acceptable or not worthy of credit or, in discursive answers, to give an overview of the area in which a mark or marks may be awarded. The ...

Biology 7401/1 Paper 1 Mark scheme with " Question,, Marking Guidance ,,Mark & Comments" Last document update:   ago

Question Marking Guidance Mark Comments 01.1 Feature Bacterium Human immunodeficiency virus (HIV) particle RNA   Cell wall  Enzyme molecules   Capsid  2 1 mark for each correct vertical column 01.2 1. (Complementary) nucleotides/bases pair OR A to T and C to G; 2. DNA polymerase; 3. Nucleotides join together (to form new strand)/phosphodiester bonds form; 3 1. & 3. Ignore ‘(DNA polymerase) forms base pairs/nucleotide pairs’ If clearly writing ...