Lecture 16: Evolution 2 File

Question 1

What is the founder effect ?

Answer 1

The reduced genetic diversity which results when a population is descended from a small number of colonising ancestors

Question 2

What are DZ and MZ twins ?

Answer 2

DZ= Different DNA, same environment 
MZ= Same DNA, different environment

Question 3

In personalised medicine what do diagnostic tests tell us ?

Answer 3

positive test= likely to benefit from treatment

negative test= unresponsive to therapy

Question 4

What causes cancers ?

Answer 4

Over expression of the HER2 growth factor, cell recieves too much signal and divides inappropriately

Question 5

How to treat cancer ? (herceptin)

Answer 5

Block HER2 receptor with neural ligand (herceptin)