TOPIC 2

Question 1

what is RNA?

Answer 1

central component of the first self-replicating systems

Question 2

DNA vs RNA

Answer 2

DNA is deoxyribonucleic acid and RNA is ribonucleic acid. Polymers of
nucleotides but with differences
Ribose sugar – Extra OH in RNA
DNA is double stranded
Nitrogenous base – T in DNA and U in RNA
RNA requires less energy to make
Thymine is converted FROM uracil
Which came first
DNA, RNA, or protein
DNA came first carries genetic information but relatively inert
Protein – not self-replicating