1.1- The Structure of DNA

Question 1

state the characteristics of prokaryotes

Answer 1

• don’t have a nucleus
• have a singular, circular chromosome
• smaller circular plasmids

Question 2

state the characteristics of eukaryotes

Answer 2

• does have a nucleus
• has linear chromosomes in the nucleus
  has circular chromosomes in mitochondria and chloroplasts

Question 3

explain the curious case of yeast

Answer 3

yeast is a special example of a eukaryote as some of them also contain plasmids

Question 4

how is DNA packaged in eukaryotes (it must be condensed and packaged in order to fit into the nucleus)

Answer 4

molecules of DNA are tightly coiled and packaged around bundles of protein called histones