rna and dna

Question 1

what is RNA

Answer 1

single stranded polynucleotide made of RNA nucleotide

Question 2

what is mRNA

Answer 2

messenger RNA
made when RNA nucleotides complementary base pair with exposed DNA part of transcription

Question 3

what is tRNA

Answer 3

short chains of RNA that fold into clover shape
they carry amino acids to mRNA at ribosomes to form polypeptide chain

Question 4

what is rRNA

Answer 4

short chains of RNA which form ribosomes

Question 5

DNA vs RNA features

Answer 5

double vs single strand
ATCG vs AUCG
deoxyribose vs ribose
storage genetic variation vs protein synthesis

Question 6

different roles dna vs rna

Answer 6

• stable molecule vs less stable
• base sequence used to build proteins (info store) vs not store info but copy of DNA code
• very long and lots info stored vs large info but small amount copied at a time
  mrna easily broken down