unit 4, DNA in euk/pro/mitochondria/chloroplast

Question 1

what are the similarities of DNA in prokaryotes and eukaryotes?

Answer 1

• dna is made of nucleotides, a nitrogenous base, a phosphate group and a deoxyribose
• phosphodiester bonds

Question 2

what are the differences of DNA in prokaryotes and eukaryotes?

Answer 2

-prokaryotic has circular dna whereas eukaryotes have linear
- eukaryotes are associated with protiens ( histones ) prokaryotic are not
- eukaryotic are longer whereas prokayotic are shorter

Question 3

what do mitcohondria and chloroplasts need DNA for?

Answer 3

to transcribe, translate enzymes needed for photosynthesis and respiration

Question 4

what are the characteristics of DNA in chloroplasts and mitochondria?

Answer 4

• circular loop of dna
• short sequences
• no histones