You are studying the pathway of pigment synthesis in the fictitious bacterium, Bacterium colorificus. Wildtype bacteria are red. You have three mutant strains, with altered colors.
Genotype Phenotype
m1+ m2+ m3+ red (wild type)
m1- m2+ m3+ orange
m1+ m2- m3+ yellow
m1+ m2+ m3- colorless
m1- m2- m3+ orange
m1+ m2- m3- colorless
m1- m2+ m3- colorless
To help you answer the following questions, draw the pathway based on this information, indicating enzymes (m1, m2, m3) and intermediates (colorless, yellow, orange).
1) Select the option that correctly indicates which intermediate should be assigned to which letter in the blank pathway below.
A. A = colorless; B = orange; C = yellow
B. A = colorless; B = yellow; C = orange
C. A = orange; B = colorless; C = yellow
D. A = orange; B = yellow; C = colorless
E. A = yellow; B = colorless; C = orange
F. A = yellow; B = orange; C = colorless