Prokaryotic vs Eukaryotic DNA (AQA A-Level Biology): Flashcards
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What shape is prokaryotic DNA?
What shape is prokaryotic DNA?
Circular (closed loop)
What shape is eukaryotic DNA?
What shape is eukaryotic DNA?
Linear (part of chromosome)
Is prokaryotic DNA associated with proteins?
Is prokaryotic DNA associated with proteins?
No - not associated with proteins (naked molecule)
What proteins are associated with eukaryotic DNA?
What proteins are associated with eukaryotic DNA?
Histones
What are exons?
What are exons?
Coding regions in eukaryotic genes
What are introns?
What are introns?
Non-coding regions in eukaryotic genes
Do prokaryotic genes have introns?
Do prokaryotic genes have introns?
No - absent (continuous coding sequences only)
What is a gene?
What is a gene?
DNA sequence coding for a polypeptide or functional RNA
What is a gene locus?
What is a gene locus?
Fixed position of a gene on a chromosome
What % of human DNA codes for proteins?
What % of human DNA codes for proteins?
Less than 2%