investigating diversity.

Question 1

WHat was classification based on originally?

Answer 1

= frequency of measureable or obersavle characteristics

Question 2

What genetic comparisons can be made?

Answer 2

= comparison of DNA sequence
- more similar the base seqence the more closley related 2 species are
= comparison of the mrna base sequence

Question 3

What protein comparisons can be made?

Answer 3

= amino acid sequences can be considered, the more similar the base sequence the more closley related
= always use the SAME protein that is found in different organisms

Question 4

What is DNA hybrisidation?

Answer 4

= whole DNA molecules
= consisting of one strand of DNA from the 2 species that are being comoared
= hydrogen bonds will form between any complementary base pairs

Question 5

With DNA hybridisation how can we tell how closley related they are?

Answer 5

= more hydrogen bonds that will form between the 2 strands- and how strong they are held together
= hybrid dna rewquies a lower temperatureas there is afewer hydrogen bonds, the less closley related thw lpwer temperature