DNA

[hitmewithgmat]

According to scientists at the UC, the pattern of changes that have occurred in human DNA over the millennia indicate the possbility that everyone alive today might be descended from a singel female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
A) indicate the possibility that everyone alive to day might be descended from a single female ancestor who
B) indicate that everyone alive today might possibly be a descendet of a singel female ancestor who had
C)may indicate that everyone alive today has descended from a single female ancestor who had
D)indicates that everyone alive today maybe a descendant of a single female ancestor who
E)indicates that everyone alive today might be a descendant from a single female ancestor who


OA follows after discussion.

[rahulakacyrus]

Pattern of changes....is singular subject so it must take a singular verb.

Indicates is the right verb here.

So it is between D and E.

Descendant of is the correct Idiom.

Thus, D.

OA please....!

[radhaswami]

what about the word maybe is it may be as if it is maybe then d is not the right answer and we have to go with e

[chintudave]

By that logic, I would rule out B, D & E for the word "singel" I think it is a typo.

IMO D is the best answer!

[krishnakumarhod]

According to scientists at the UC, the pattern of changes that have occurred in human DNA over the millennia indicate the possbility that everyone alive today might be descended from a singel female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
A) indicate the possibility that everyone alive to day might be descended from a single female ancestor who--->Idiom
B) indicate that everyone alive today might possibly be a descendet of a singel female ancestor who had --->SV
C)may indicate that everyone alive today has descended from a single female ancestor who had-->SV
D)indicates that everyone alive today maybe a descendant of a singel female ancestor who-->Pattern(single)+indicates(single)
E)indicates that everyone alive today might be a descendant from a singel female ancestor who -->Idiom

Red-->Sub Verb
Idiom -->Descendant of

please tell me if the above reasoning is not correct

Thanks
Krishna

[hitmewithgmat]

OA is D

(sorry for the typo) singel is single. I corrected it

[deepoe]

Why not E ?

[frizo]

pattern...indicates is correct. (singular subject requires singular verb)
Descendant OF is correct idiom.
Descendant FROM is wrong.
Hence, D

[jeevan.Gk]

Why not E ?

Descendant from --- wrong idiom..
Descendant of ---- correct idiom

Hope u r clear