Life Sciences version 1 English P1 memo

November 2012 — Grade 12 / Matric — Life Sciences version 1

Memo 2012 Grade 12 English Life Sciences Hub →

↓ Download PDF 📄 207.6 KB View Exam Paper

Preparing document

📋 Document Analysis

🎯 150 marks 📄 10 pages 📝 28 items found 📚 2 topics

See full analysis

Questions — A Preview of What to Expect in the Document

This section provides a quick preview of questions from the document. It may not display every question or the complete wording of each one. For the full content, including diagrams, tables and other information, view the original PDF above.

Q1— Section header —

1.2.1Interphase

1.2.2DNA profiling DNA fingerprint

1.2.3mniotic fluid

1.2.4Anther

1.2.5Fraternal /non identical /heterozygotic /dizygotic

1.2.6Cloning (6\

1.3.5Bot h A and B A only B only A only None x 2\ /23 pairs Man

1.5.2Recessive Brachydactyly appear in the offspring even when neither of the parents are brachydactylous

1.5.450

Q2— Section header —

2.1.1Centromere Chromatid Chromosome Homologous chromosomes /bivalent

2.1.3Crossin g over Prophase I (1\

2.1It ensures that the gametes produced at the end of meiosis are genetically different from each other /genetic variation

2.1Random /independent assortment of chromosomes (1\ hromosomes /chromatid arrange themselves randomly/independently on either side of the equator

2.1Meiosis I Meiosis II Crossing over takes place No crossing over takes place In metaphase the chromosomes align on the equator in homologous pairs In metaphase

2.2.2(a\ Transcription (b\ Transl ation Free (RNA\ nucleotides from the nucleoplasm arrange according to the base sequence of the DNA template

2.2.3GUU (2\ CAA (2\ CGT (2\ (13\

Q3— Section header —

3.1.4Umbilical cord Placenta (a\ (b\ The villi increase the surface area across which exchange of su bstances can take place between foetal

3.2.2More boys than girls can roll their tongue More girls than boys can roll their tongue Equal number of boys and girls can roll their tongue se the same number of boys and girls

3.3.4(125 100 125 After a sharp increase in 199 the numbers gradually decreased until 200 Sterility

3.4Surgical procedures Use fertility drugs Artificial insemination vitro fertilisation Gamete ntra allopian ransfer (GIFT\

Q4— Section header —

4.1Redu ce the need for the use of chemicals /pesticides because the resistance of crops to pests has been increased /less harmful to the environment Selecting the best genes to produce better resistant crops

4.3.1Mark allocation of the graph Correct type of graph Title of graph Correct label and units for X axis Graphs labelled/key provided for 2 graphs Correct labe l and units for Y axis

4.3.2The percentage of men with low sperm counts has increased from 1941 1990 The percentage of men with high sperm counts has decreased from 1941 to 1990 (2\ (13\

4.4Loop/IUD It prevents fertilised eggs/embryos from becoming attached to the uterine wall Female condom /(Femidom\ Acts as a barrier /stops sperm getting into

Topics Identified

Cell BiologyGenetics

Mark Allocation

Total150 marks

Sections50 = 50 marks

Paper information

SubjectLife Sciences version 1

Year2012

SessionNovember

TypeMemo

PaperPaper 1

LanguageEnglish

Pages10

Downloads7

Examination context

Decade2010s

Years ago14y

SeasonSpring (SH)

Start dayMonday

Exam periodNovember 2012

Days since exam5,102

About Life Sciences version 1 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 version 1 English P1 →

File details

File size207.6 KB

Pages10

Archived on11 October 2026

File age13d

ContributorFreeMode

Fingerprint46EF00726987

Questions and learner discussion

No questions or discussions have been posted yet.