Linkage disequilibrium and recombination. - in our treatment of population genetics up to this point we have assumed that the transmission. of alleles at a given locus across generations are independent of alleles at a second locus. - we have also assumed that the fitnesses of genotypes at one locus are not affected by genotypes. at another locus.
Footnote references should be placed outside punctuation, but inside the closing parenthesis when referring to matter within parentheses. A lot depends on what style manual you follow.
Other than that, do it the way you want.  Hope this helps     According to the 6th Edition of the Publication Manual of the APA, space twice after punctuation marks at the end of a sentence. Section 4.01 - last sentence.