InThinking Subject Sites

Subscription websites for IB teachers & their classes

Find out more


Sitemap
Recommendations
Other subjects
Brochure

Disclaimer: InThinking subject sites are neither endorsed by nor connected with the International Baccalaureate Organisation.

Student access tools
 You need to log-in or subscribe in order to use Student access.

Using DNA similarities -Model answers (Activity 2)

Species A: CATCATCATCATCATCATCATCATCATCATSpecies B: CATCATTACTACTACTACCATCATCATCATSpecies C: CATCATTACTACTACTACCATCATTATCATIn the DNA of these species there looks to have been two mutations. Of course both of these mutations could have happened in reverse. TAC could have become CAT and T could have become C. Is it possible to identify which base sequence came first?The quick answer: Using a cladogram, yes,it is possible...

To access the entire contents of this site, you need to log in or subscribe to it.

Alternatively, you can request a one month free trial.