Here is a good LSAT CR
Will post solution tomorrow.
Some types of organisms originated through endosymbiosis, the engufing of one organism by another so that the former becomes a functioning part of the latter. An unusual nucleomorph, a structure that contains DNA and resembles a cell nucleus, has been discovered witin a plant known as a chlorarachniophyte. Two versions of a particular gene have been found in the DNA of this nucleomorph, and one would expect to find only a single version of this gene if the nucleomorph were not the remains of an engulfed organism's nucleus.
Which of the following is most strongly supported by the information above?
A) Only organisms of types that originated through endosymbiosis contain nucleomorphs.If A then B.
B does not mean A.
If nucleomorph then endosymbiosis.
Endosymbiosis does not mean nucleomorph.
Hence A can't be the answer.
B) A nucleomorph within the chlorachniophyte hold all of the genetic material of some other organism.Not supported by argument.
C) Nucleomorphs originated when an organism endosymbiotically engufed a chlorachniophyte.Nucleomorph were the remains of an engulfed organism's nucleus. A chlorachniophyte has enguled some other organism. Not C.
D) Two organisms will not undergo endosymbiosis unless at least one of them contains a nucleomorph.Need not be true according to argument.
E) Chlorachniophytes emerged as the result of two organisms having undergone endosymbiosisChlorachniophtes emerged after a plant has engufed something else. Hence E is my answer.