Sifakas are among a short list of primates other than humans known to display a preference for using one hand rather than the other. Significantly more Sifakas are left-handed than are right-handed. Since infant Sifakas engage in much imitative behavior, researchers hypothesize that it is by imitation that infant Sifakas learn which hand to use, so that offspring reared by left-handed parents generally share their parents' handedness.
Which one of the following, if true, most supports the researchers' hypothesis?
A) A study conducted on adult Sifakas revealed that many were right-handed
B) Right-handed Sifakas virtually all have at least one sibling who is left-handed
C) According to the study, 33 percent of Sifakas are ambidextrous, showing equal facility using either their left hand or their right hand
D) Ninety percent of humans are right-handed, but those who are left-handed are likely to have at least one left-handed parent
E) Sifakas raised in captivity with right-handed adult Sifakas to whom they are not related are more likely to be right-handed than left-handed
OA E
Target Test Prep is 20% off right now!
Use code FLASH20
Available with Beat the GMAT members only code
MORE DETAILS
Sifakas are among a short list of primates other than humans
This topic has expert replies
-
BTGmoderatorDC
- Moderator
- Posts: 7187
- Joined: Thu Sep 07, 2017 4:43 pm
- Followed by:23 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
-
deloitte247
- Legendary Member
- Posts: 2214
- Joined: Fri Mar 02, 2018 2:22 pm
- Followed by:5 members
Timer
00:00
Your Answer
A
B
C
D
E
Global Stats
Option A - INCORRECT.
It would certainly be true because from childhood they imitate who raised them. Since there exists more Sifakas that uses Right hands than there are who uses left. Their parentage must have been clearly responsible for such behaviors. It is supportive though but not as weighty as we'd have wanted it to be so.
Option B - INCORRECT.
Since more Sifakas use left hands more than the right it is thus an INCORRECT Assertion to think there could exist a deviation among them (they don't think like humans) their imitative capacities constrains them to behave like whoever they imitate.
Option C - INCORRECT.
This could not be true because of their imitative behavior, they either use right or left hands. Using both hands would mean their imitative behavior should be discarded since they ''generally share their parents' handedness''.
Option D -INCORRECT.
Not true too, it is possible their is though a left handed member of the family but that's not to say one of their parents have such behavior. Humans could be ambidextrous. Does that mean one the parents is too? INCORRECT assertion.
Option E - CORRECT.
YES, very true because they see those captors as their parents and take after them in the way they do things. They would remain right handed even if their original parents are otherwise became it is not hereditary but rather imitative. A sound and CORRECT point from the options.
It would certainly be true because from childhood they imitate who raised them. Since there exists more Sifakas that uses Right hands than there are who uses left. Their parentage must have been clearly responsible for such behaviors. It is supportive though but not as weighty as we'd have wanted it to be so.
Option B - INCORRECT.
Since more Sifakas use left hands more than the right it is thus an INCORRECT Assertion to think there could exist a deviation among them (they don't think like humans) their imitative capacities constrains them to behave like whoever they imitate.
Option C - INCORRECT.
This could not be true because of their imitative behavior, they either use right or left hands. Using both hands would mean their imitative behavior should be discarded since they ''generally share their parents' handedness''.
Option D -INCORRECT.
Not true too, it is possible their is though a left handed member of the family but that's not to say one of their parents have such behavior. Humans could be ambidextrous. Does that mean one the parents is too? INCORRECT assertion.
Option E - CORRECT.
YES, very true because they see those captors as their parents and take after them in the way they do things. They would remain right handed even if their original parents are otherwise became it is not hereditary but rather imitative. A sound and CORRECT point from the options.
