Since chromosome damage may be caused by viral infections, medical x-rays, and exposure to sunlight, it is important that the chromosomes of a population to be tested for chemically induced damage be compared with those of a control population.
(A) to be tested for chemically induced damage be compared with
(B) being tested for damage induced chemically are compared with
(C) being tested for chemically induced damage should be compared to
(D) being tested for chemically induced damage are to be compared to
(E) that is to be tested for chemically induced damage are to be comparable with

c
C
A
compared with — when like things are compared
compared to — when different things are compared
(E) that is to be tested for chemically induced damage are to be comparable with
A
I agree with anupam..
correction – the answer should be C since the differences between the two chromosomes are to be found…so it has to be “compared to”
E
C
A
A
A – reason, subjunctive form (omit should, are, etc)
I will go with option C
One more vote for A. Compare with is the correct idiom. In B, “damage induced chemically” is unidiomatic.
B is the answer.. In Choice A , “it is important that the chromosomes of a population to be tested for chemically induced damage” ,”population to be tested for” doesnt sound correct.
The right answer is A. Checked from a reliable source as well. Flaws in other favorite options: “chromosomes -being” + “Compared to”
A
A.
subjuctive form
a
It is C
This statement is in suggession mood … so subjunctive mood to be used .. and damage induced chemically dosen’t sound idiomatic .. so A is the correct answer … and still not satisfied its only A that says ” Compare chromosome of X with chromosome of Y ” … and its not ” Complare chromosome of X to chromosome of Y ”
So it is A…
Ans B
A
IMO A.
Its subjunctive. and only A has the verb in form be+ verb(without to ).
A
Agree wid Nikesh’s reason for option A
A… compared with is correct over here
C
C