SC's Question number - 851 , 852

851). The work of mathematician Roger Penrose in the early 1970s, on the geometry of what are called aperiodic tiles, turned out to describe the architecture of a previously unknown class of crystals.

(A) what are called aperiodic tiles, turned out to describe

(B) what is called aperiodic tiles, describes

(C) aperiodic tiles, describing

(D) so-called aperiodic tiles, describe

(E) aperiodic tiles, it turned out to describe

852). There are more than forty newspapers published in the cities of Kerala, a state on the Malabar Coast, which reflects the fact that Keralans are by far India’s most literate citizens.

(A) which reflects

(B) and that number reflects

(C) which reflect

(D) that number reflects

(E) that reflects

Answers:

851). OA - A

B - incorrect - ...tiles(plural)...describes(singular) - what + verb + subject ..in such constructions generally the number of verb is governed by the subject

C - incorrect - sentence fragment - The work.....describing

D - incorrect - subject verb agreement - here The work(singular subject)....describe(plural verb)

E - incorrect - ambiguous it - it can refer to work or geometry


852). OA - B - correct - and is required to join two independent clauses here

SC's Question number - 853 , 854

853). There has been a 30- to 40-fold increase in the incidence of malaria caused by increasing mosquito resistance against pesticides.

(A) increase in the incidence of malaria caused by increasing mosquito resistance against

(B) increase in the incidence of malaria because of increasing resistance of mosquitoes to

(C) increasing malaria incidence because of increasing resistance of mosquitoes to

(D) incidence of malaria increase caused by increasing mosquito resistance against

(E) incidence of malaria increase because of increased mosquito resistance to

854). There is ample evidence, derived from the lore of traditional folk medicine, that naturally occurring antibiotics are usually able to be modified to make them a more effective drug.

(A) are usually able to be modified to make them a more effective drug.

(B) are usually able to be modified to make them more effective drugs

(C) are usually able to be modified, which makes them more effective drugs

(D) can usually be modified to make them a more effective drug

(E) can usually be modified to make them more effective drugs

Answers:

853). OA - B

A- incorrect - Resistance against -- Redundant

C, D, E - incorrect - unidiomatic - 30-to-40 fold increase is the correct idiomatic usage

854). OA - E

A, D - incorrect - antibiotics....a more effective drug

B, C - incorrect - passive - be able to

SC's Question number - 855 , 856

855). There is growing demand in the state for “initiative and referendum,” a procedure that allows voters to propose and pass laws, as well as to repeal them.

(A) allows voters to propose and pass laws, as well as to repeal them

(B) allows voters to propose, pass, and to repeal laws

(C) allows voters to propose, to pass, and repeal laws

(D) will allow the voter to propose, pass, as well as to repeal laws

(E) will allow laws to be proposed, passed, as well as repealed by voters

856). There is no consensus on what role, if any, is played by acid rain in slowing the growth or damaging forests in the eastern United States.

(A) slowing the growth or damaging

(B) the damage or the slowing of the growth of

(C) the damage to or the slowness of the growth of

(D) damaged or slowed growth of

(E) damaging or slowing the growth of


Answer:

855). OA - A - ...to propose and pass laws as well as to repeal them

B, C, D - incorrect - violating parallelism

E - incorrect - passive; future tense will allow is wrong

856). OA - E - ques no 53 in OG 10th

A - incorrect - requires of after growth

B - incorrect - requires to after damage

C - incorrect - the slowness of does not convey the original sense that the rate of growth has been slowed by acid rain..

D - incorrect - changes the meaning of the sentence by making both 'damaged' and 'slowed' refer to growth.

SC's Question number - 857 , 858

857). There is speculation that increasing cold weather was what may have been responsible for the Anasazi move from Mesa Verde to sites in other canyons.

(A) that increasing cold weather was what may have been

(B) whether increasing cold weather was what was

(C) that increasingly cold weather was what had been

(D) whether increasingly cold weather may have been what was

(E) that increasingly cold weather may have been

858). There is substantial evidence that certain forms of solar energy either now or within a few years will be economically competitive with conventional sources of heat and power.

(A) either now or within a few years will be economically competitive with conventional sources of heat and power

(B) will either be economically competitive with conventional sources of heat and power within a few years or are so now

(C) will be economically competitive with conventional sources of heat and power either now or within a few years

(D) either are now economically competitive with conventional sources of heat and power or will be so within a few years

(E) are either now or will be within a few years economically competitive with conventional sources of heat and power


Answers:

857). OA - E - Speculation means Reasoning based on inconclusive evidence or supposition.hence may have been is getting along fine with speculation in the sentence. Further speculation that is the right idiom

A, B - incorrect - require increasingly (adverb) to modify cold (adjective), which is modifying weather (noun)

C - incorrect - Past perfect wrong. Present perfect continuous is required

D - incorrect - awkward - what was

858). OA - D

A - incorrect - ..now...will be

B, E - incorrect - either..or misplaced

C - incorrect - X will be competitive ....now....