Life Sciences Memo 2 (English)

May-June 2024 — Grade 12 / Matric — Life Sciences

Memo 2024 Grade 12 English Life Sciences Hub →

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🎯 150 marks 📄 2 pages 📝 46 items found 📚 3 topics 🔑 1 key info

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Q1— Section header —

1.2.8Gene allele DNA profile Punctuated equilibrium Cloning Stem cell

1.3.3None A only None (3 x 2\ (6\

1.4.1 DNA Deoxyribo nucleic acid (1\

1.4.2(a\ (b\ Hydrogen bond Phosphate (1\ (1\

1.4ibose (1\

1.4(a\ (b\ (1\ (1\ (6\ 2024

1.5.1Chromosomal mutation (1\

1.5.2Sperm (1\

1.5(a\ (b\ 22 (1\ (1\

1.5XX XYX (2 (6

1.6.1Cladogram Phylogenetic tree (1\

1.6(a\ (b\ Ardipithecus (1\ (1\

1.6troglodytes gorilla

1.6.4s Ples Taung child Little foot Any

Q2— Section header —

2.1.1Ribosome (1\

2.1Brings the required specific amino acid according to

2.1(a\ CCU (1\ (b\ GTA (2

2.1A mutation occurred that changed the sequence of nitrogenous bases on DNA from

2.2The DNA double helix unwinds The DNA strands unzip /weak hydrogen bonds break

2.32. .1 Cell membrane (1\

2.3.2 Produces spindle fibres (Mark first ONE only\ (1\

2.3Random arrangement of chromosomes at the equator results in the formation of genetically different

2.3Criteria for assessing the drawing Criteria Mark Cell D copied correctly

2.4.4 Phenotype (Male\ ithout cystic fibrosis (Female\

2.5.1The gene for insect resistance is isolated from another species and inserted into the DNA of corn where it is expressed (2

2.5.2As the percentage of land used to grow Bt corn increases the amount of insecticide used decreases (2\

2.5.3Longer shelf life Drought resistance More nutrients

2.5.4Criteria for marking of the graph: Criteria Mark allocation Bar graph is drawn ( Caption of the graph includes both variables (

3.1.225 x 25 000 6250 100 OR 25% x 25000 (0,25 x 25000\

3.1.3Males have only one X chromosome XY

3.2.1 (a\ (b\ Presence or absence of

3.2Type of net apparatus used to catch the insects

3.2.3 Collected thousands of stoneflies Three (3\ locations for each category (Mark first TWO only\ (2

3.2All stoneflies had wings Due to strong winds /since it was dangerous to fly in cleared areas

Q3— Section header —

3.3If a population of a single species becomes separated by a geographical barrier (sea, river, mountain, lake\ then the population splits into two There is no gene flow between the two populations

3.4.1 Eyes in front Binocular vision Stereoscopic vision Colour vis

3.4.2 Gorrilla gorrilla (1

3.4.3 Large canines /teeth Large jaw (Mark first TWO only\

3.4.4More forward position of the foramen magnum Allows the spine to enter vertically beneath the skull to support

3.4.5(a\ (b\ Homo sapiens has an S shaped spine

3.4.6For the attachment of strong muscles to assist in eating

3.5.1Datura flowers: release a powerful fragrance that attracts hawk moths release highly addictive nectar

3.5.2Reproduction is at different times of the year Infertile offspring Prevention of fertilisation Any (Mark first TWO only\

Topics Identified

Cell BiologyGeneticsEvolution

Mark Allocation

Total150 marks

Sections50 + 50 = 100 marks

Key Information

Contact Number0 90 100 1995

Paper information

SubjectLife Sciences

Year2024

SessionMay-June

TypeMemo

PaperPaper 2

LanguageEnglish

Pages12

Downloads5

Examination context

Decade2020s

Years ago2y

Season—

Start day—

Exam period—

Days since exam—

About Life Sciences examination preparation

Grade 12 Life Sciences combines biological knowledge with interpretation and scientific reasoning. Paper 1 covers molecular biology, genetics, and cell biology, while Paper 2 tests human physiology, ecology, and evolution.

Every available Grade 12 Life Sciences past paper and memorandum is collected in the Life Sciences hub at life-sciences.freemode.co.za — browse all years, sessions and languages in one place.

How to use this resource for revision

A past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

recalling biological concepts

applying knowledge to unfamiliar situations

interpreting diagrams and information

using scientific terminology

constructing precise written responses

A practical revision approach

Life Sciences rewards exact biological terminology — examiners deduct marks for paraphrased definitions. Create a glossary of key terms and practice using them in context.

Grade 12 subject hubs

Each matric subject has its own dedicated hub on Freemode with every past paper and marking memorandum we have archived for that subject.

➗ Mathematics View papers → 📊 Mathematical Literacy View papers → ⚗️ Physical Sciences View papers → 🧬 Life Sciences 📍 You are here 📒 Accounting View papers → 💼 Business Studies View papers → 📈 Economics View papers → 🌍 Geography View papers → 🏛️ History View papers → 📖 English View papers → 🇿🇦 Afrikaans View papers → 🗣️ IsiNdebele View papers → 🗣️ IsiXhosa View papers → 🗣️ IsiZulu View papers → 🗣️ Sepedi View papers → 🗣️ Sesotho View papers → 🗣️ Setswana View papers → 🌾 Agricultural Sciences View papers →

Corresponding examination paper

Examination paper available

Open the corresponding examination paper to practise the questions before reviewing the marking memorandum on this page. Attempt every question under timed conditions for the most realistic preparation.

Life Sciences Paper 2 (English) →

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File size290.6 KB

Pages12

Archived on7 September 2026

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