Double fertilisation - Study guides, Revision notes & Summaries

Explain how the structure of DNA is related to its functions (6 marks) - answer-- sugar-phosphate (backbone)/double stranded/helix so provides strength/stability/protects bases/protects hydrogen bonds - long/large molecule so can store lots of information - helix/coiled so compact - base sequence allows information to be stored/ base sequence codes for amino acids/protein - double stranded so replication can occur semi-conservatively/strands can act as templates/complementary base pairing/A-...

AS BIOLOGY 7401/2 Paper 2 Mark scheme June 2021 Version: 1.0 Final *216A7401/2/MS* BIOLOGY AS LEVEL7401 MARK SCHEME – AS BIOLOGY – 7401/2 – JUNE 2021 2 Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevant questions, by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them in this examination. The standard...

Describe how you would use a biochemical test to show that a solution contained a non-reducing sugar, such as sucrose. [3] ,first reducing sugars test; boil with dilute HCl acid then Neutralise with NaHCǑ, add benedict and heat to 95 degrees C brick red ppt forms if reducing sugar is present Describe a chemical test you could carry out to show that a piece of coconut contains lipids. [3] (Crush in) ethanol / alcohol; Add (to) water (Order of adding is critical for this point); Emulsion / whi...

PVL1501 STUDY SUMMARY NOTES. This is a complete and an an all-inclusive guide to PVL1501 - Law of Persons. Sub-sec of private law Private law = persons “first law” – sphere of law that governs relationships with humans = concepts & institutions – basic to all other branches of the law Legal subject: Centre of legal world – bearer of rights, duties and capacities – persons in the eye of the law (persona iurus) The Law of Persons determines: 1. Which entities are legal subjects ...

Full notes of sexual reproduction in plants including flower structure, gamete development, self-pollination, cross-pollination, double fertilisation, development of the fruit and seed, germination of the broad bean and the effect of gibberelin.

PVL1501 SUMMARY NOTES. INTRODUCTION TO THE LAW OF PERSONS. Sub-sec of private law Private law = persons “first law” – sphere of law that governs relationships with humans = concepts & institutions – basic to all other branches of the law Legal subject: Centre of legal world – bearer of rights, duties and capacities – persons in the eye of the law (persona iurus) The Law of Persons determines: 1. Which entities are legal subjects 2. When legal personality begins & ends 3. ...

Introduction Law of persons Law of persons determines: 1. which beings are legal subjects 2. how a legal subject originates and comes to an end 3. what legal status involves 4. what effect various factors have on a person's legal status Confined to treatment of the natural person only: not juristic persons. Deals virtually exclusively with the status of natural persons in the field of private law. Different kinds of legal subjects Legal personality is bestowed only on legal subjects. ...