Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.

[Q]: Sentence1: information in an organism 's chromosomes cause genetic traits to be passed down to that organism 's offspring. 
Sentence2: information in Man's chromosomes cause genetic traits to be passed down to offspring.
[A]: chromosomes


[Q]: Sentence1: DNA is made up of nucleotides. 
Sentence2: Mutations can change the structure of DNA.
[A]: DNA


[Q]: Sentence1: Flowers produce spores that develop into gametophytes. 
Sentence2: ferns reproduce with spores.
[A]:
spores