DNA Structure and Replication

Question 1

compare prokaryotic and eukaryotic DNA

Answer 1

Prokaryotes

• lack distinct nucleus - no membrane - enclosed organelles
• contained free floating ribosomes
• generally small size (1-10um)
• unicellular
• Domain bacteria and Archea

Eukaryotes

• A distinct nucleus, contains membrane - enclosed organelles
• Contain ribosomes
• Generally larger size (10-100um)
• Unicellular and multicellular
• Domain Eukarya

Question 1

what is mRNA splicing

Question 2

what are chromosomes made up of?

Answer 2

made up of exons (coding regions of dna - code for specific amino acid sequence in protiens) and interupted by introns ( regulating transcription of exons or genes)

Question 3

what is endosymbiosis?

Answer 3

relationship. one organsim lives inside other and behaviour as a single organism ( prokarypotic - eukaryotic)