Differences between DNA and RNA Grade 12 Life Sciences Notes with Activities Questions and Answers

On this page you will find Differences between DNA and RNA 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

What is a DNA: a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

What is an RNA: ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins, although in some viruses RNA rather than DNA carries the genetic information.

Differences between DNA and RNA

Below is the the differences between DNA and RNA in a table format:

DNA	RNA
Double-stranded molecule	Single-stranded molecule
Contains deoxyribose (sugar)	Contains ribose (sugar)
Contains the nitrogenous base, thymine	Contains the nitrogenous base, uracil

Video Lesson on: Differences between DNA and RNA

Question and Answers Activities:

Find short and long questions for Grade 12 Life Sciences, which will help you to prepare for the exams, tests, practical tasks, and assignments.

EXAM TIP: The structure of the DNA and RNA molecule is very important and is often examined almost every year in Grade 12. Make sure that you know the labels of each component. Remember to label the diagram first and then move onto the questions

PDF Downloadable Notes on Differences between DNA and RNA

Life Science Study Guides for Grade 12

Nucleic acids Notes: The structure of DNA and RNA, Differences between DNA and RNA, DNA replication and its significance, DNA profiling, Protein synthesis.