Life Sciences Grade 12 Learning Materials Directory A-Z

Life Sciences Grade 12 May - June 2022 common exam question papers with the memorandums

Life Sciences Grade 12 May – June 2022 common exam question papers with the memorandums

Find Life Sciences Grade 12 May – June 2022 common exam question papers (paper 1 and paper 2) with the memorandums for answers in a pdf downloadable format. The papers are most useful during your next study revision, and preparing for your next exams. Good luck and all the best. We aim to provide the entire collection of common mid-year,…

How a Dorsiventral Leaf is Adapted for Photosynthesis

How a Dorsiventral Leaf is Adapted for Photosynthesis

On this page, we will briefly explain and describe how a dorsiventral leaf is adapted for photosynthesis. What is a Dorsiventral Leaf? Dorsiventral leavesDorsiventral leaves orient themselves at an angle to the main axis and perpendicular to the direction of sunlight. Most dicots have dorsi-ventral leaves that are net-veined, including most trees, bushes, garden plants and wildflowers. Isobilateral leavesIsobilateral leaves…

Grade 12 Life Sciences Practical Task 2 Genetics and Inheritance Memo

Grade 12 Life Sciences Practical Task 2 Genetics and Inheritance Memo

On this page you will find Grade 12 Life Sciences Practical Task 2 on Genetics and Inheritance with the downloadable pdf memo). The task which is covered on this page is “Surveying human characteristics“. Genetics and Inheritance task What is required for students The learners are required to conduct a survey of the occurrence/frequency of dominant and recessive phenotypes for…

Hormonal control of the menstrual cycle Grade 12 Life Sciences Notes with Activities Questions and

Hormonal control of the menstrual cycle Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find Hormonal control of the menstrual cycle Grade 12 Life Sciences Notes under Human Reproduction, which includes revision activities with questions and answers to help grade 12 learners to prepare for their tests and exams. Notes Hormonal changes during the menstrual cycle Days A B C D day 0–11 Pituitary gland producesFSH which stimulates development…

Reproduction in Vertebrates Diversity of Reproductive Strategies

Reproduction in Vertebrates Diversity of Reproductive Strategies

Reproduction in Vertebrates Diversity of Reproductive Strategies Different groups in the animal kingdom have different strategies to maximise reproductive success in different environments. These are a few of the strategies used by vertebrates. Reproduction in Vertebrates Video Lesson Reproductive Strategies Below are the different reproductive strategies of vertebrates animals in a table format, how it works, as well as the…

The significance of meiosis Grade 12 Life Sciences Notes with Activities Questions and Answers

The significance of meiosis Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find The significance of meiosis Grade 12 Life Sciences Notes under Meiosis, which includes revision activities with questions and answers to help grade 12 learners to prepare for their tests and exams. Notes There are two reasons why meiosis is important. It reduces the number of chromosomes by half, in other words from diploid to…

The process of meiosis in animal cells Grade 12 Life Sciences Notes with Activities Questions and Answers

The process of meiosis in animal cells Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find The process of meiosis in animal cells Grade 12 Life Sciences Notes under Meiosis, which includes revision activities with questions and answers to help grade 12 learners to prepare for their tests and exams. Notes Meiosis is the type of cell division used to produce gametes or sex cells (sperm and egg cells). A…

Abnormal meiosis Grade 12 Life Sciences Notes with Activities Questions and Answers

Abnormal meiosis Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find Abnormal meiosis Grade 12 Life Sciences Notes under Meiosis, which includes revision activities with questions and answers to help grade 12 learners to prepare for their tests and exams. Notes Sometimes mistakes occur during the process of meiosis. This can happen in Anaphase 1 where the homologous chromosomes may not separate. Also called non-disjunction.…

The structure of DNA and RNA Grade 12 Life Sciences Notes with Activities Questions and Answers

The structure of DNA and RNA Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find The structure of DNA and RNA Grade 12 Life Sciences Notes under Nucleic acids, which includes revision activities with questions and answers to help grade 12 learners prepare for their tests and exams. Notes Two kinds of nucleic acids are found in a cell, namely DNA and RNA. These two nucleic acids are made…

DNA replication and its significance Grade 12 Life Sciences Notes with Activities Questions and Answers

DNA replication and its significance Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find DNA replication and its significance Grade 12 Life Sciences Notes under Nucleic acids, which includes revision activities with questions and answers to help grade 12 learners to prepare for their tests and exams. Notes DNA replication takes place at interphase before mitosis or meiosis begins. DNA replication is the process during which a DNA…