Unit 1: Genome Structure

Question	Answer
What Is Meant By The Genome?	An organisms hereditary info encoded within its DNA
What Is Meant By A Coding Region Of The Genome?	A gene which codes for protein
What Is Meant By A Regulatory Sequence?	A sequence which regulates gene expression [Switches genes off or on]
What Is Meant By Translation?	A sequence of mRNA used to create protein
Explain How A Non-coding Region Can Protect Chromosomes?	Repeated sequences which prevent the ends of chromosomes from fraying
Is All Of The Genome Found In The Nucleus Of Eukaryotes?	No, nor in the mitochondria or chloroplasts
What Is The Function of RNA?	It combines with protein to form the ribosome
What Is Meant By Non-coding Region Of The Genome?	It does not code for protein
Give Examples Of Molecules Which Are Produced By Transcription But Are Never Translated?	• tRNA • rRNA • small RNA fragments
What Are The Three Known Functions Of Non-Coding Regions Of The genome?	•Protection •Transcription but not translation •Regulatory squences
What Is Meant By Transcription	Sequence of DNA is copied to make an RNA molecule
What Is The Function of tRNA?	Carries a specific amino acid and has an anti-codon which is complementary to a codon on mRNA

Resource summary

	Created by Ellie Potellie over 5 years ago