Answer:
arg---pro---gal---man.
Explanation:
The co transduction frequency is directly proportional to the distance between two genes.
The recombination frequency can be calculated as follows;
A - B = (A - B / A ) x 100
Here, A and B represent the different genes.
For plate 1 :
Pro- gal = A - B = (1000 - 400/1000) x 100 = 60%
. Here, A is Pro and B is gal.
Pro - Arg = A - C = (1000- 290/1000) x 100 = 71%
. Here, C is Arg.
Pro - Man = A - D = (1000-1000/1000) x 100 = 0%. Here D is Man.
For Gal transductants of plate 2
Gal - Pro = A - B = (1000 - 390/1000) x 100 = 61%
. Here A is Gal and B is Pro.
Gal - Arg = A - C = (1000- 289/1000) x 100 = 71%
. Here, C is Arg.
Gal - Man = A - D = (1000-900/1000) x 100 = 10%. Here D is Man.
From the recombination frequencies it is clear that the location of genes are in the order of
Thus, the correct answer is option (B).
