The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an

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The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably on a spectrum of genetic relatedness.

(A) The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

(B) That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably

(C) With some fraternal twins resembling each other greatly and others looking quite dissimilar, it highlights an interesting and often overlooked feature of fraternal-twin pairs, namely considerable variation

(D) With some fraternal twins resembling each other greatly and others looking quite dissimilar, it is a fact that highlights an interesting and often overlooked feature of fraternal-twin pairs, namely a considerable variation

(E) Because some fraternal twins resemble each other greatly and others look quite dissimilar, this fact highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably


OA B

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Option A - Incorrect
This option uses present tense verbs 'resembling' and 'looking' which do not logically explain the scientific fact stated in the sentence.

Option B - Correct
This answer choice best explains the intended meaning using all the correct phrases and subject-verb agreement logically.

Option C - Incorrect
'It' in this option function as a pronoun; however, it is supposed to have a previous noun to take its place but it doesn't. Therefore, this answer choice is wrong.

Option D - Incorrect
The prepositional phrase that begins the sentence doesn't describe anything, and prepositional phrases are supposed to describe something in a sentence.

Option E - Incorrect
It doesn't logically explain the intended meaning of the sentence. Also, the use of 'because' to start a sentence is wrong.