8 - GENETIC INTERACTION

Question 1

how are forward genetic screens performed to identify genes involved in a biochemical pathway

Answer 1

then those that are not growing in the minimal medium are transferred onto media that are specific for something (amino acids, vitamins etc)
then you test them on media that have one amino acid only to test for the specificity

Question 2

what is auxotrophy

Answer 2

inability of an organism to synthesize a particular organic compound required for its growth

Question 3

what can you do to determine whether the mutations are alleles of the same gene or different genes when studying gene interactions

Answer 3

Question 4

how are the ratios different when there are genetic interactions

Answer 4

Question 5

gene interactions and mendelian ratios when there is a regulator gene and a target gene

Answer 5

Question 6

example of two genes affecting the same characteristic but working independently and the ratios

Answer 6

Question 7

what is epistasis

Answer 7

Question 8

what is an example of recessive epistasis

Answer 8

Question 9

how does a suppressor gene interaction work

Answer 9

Question 10

how does a modifier gene interaction work

Answer 10

Question 11

how does a synthetic lethal interaction work

Answer 11