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Explore the genome structure, including genes, non-coding regions, and regulatory sequences. Learn about non-transcribed DNA and non-translated RNA, such as tRNA and rRNA. Enhance problem-solving skills and test your knowledge with quick quizzes.
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Higher Biology Unit 1 DNA and the Genome KEY AREA 5: The Structure of the Genome
DNA and the Genome Learning Intentions KEY AREA 5 – The Structure of the Genome
5a) The Genome The genome of an organism is its entire hereditary information encoded in its DNA A genome is made up of genes and other DNA sequences that do not code for proteins Most of the eukaryotic genome consists of non-coding regions DNA sequences that code for protein are called genes Other sequences regulate transcription and others are transcribed but never translated
Genes have a promoter and a regulator sequence associated with them • * See Torrance p.56 for more information • Some repetitive DNA sequences are found at the ends of chromosomes: these are thought to make a protective structure called a telomere, which stops the chromosome from being damaged at its ends 5b) Non-Transcribed DNA
5c) Non-Translated RNA tRNA and rRNA are non-translated forms of RNA They are able to carry out their specific functions without being translated into protein
DNA and the Genome Questions KEY AREA 5 – The Structure of the Genome 1. Problem Solving P 14 Q 1-2 2. Quick Quiz