2.1.17 RNA

Question 0

What are the three forms of RNA and what do they do?

Answer 0

• messager of RNA (mRNA) = copy of the other DNA strand of double helix
• Ribosomal RNA (rRNA) = found in ribosomes
• Transfer RNA (tRNA) = carries amino acids to ribosomes - bonded together to form polypeptides

Question 1

What are the four differences between DNA and RNA?

Answer 1

5 Carbon sugar is ribsome
Nitrogenous base is uracil instead of thymine
polynucleotide chain is usually single stranded
three forms of RNA exist