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Which of the following can't be associated with the spiral arms of a galaxy
Interstrain Recombination
Genetic recombination that occurs between different strains of microorganisms, leading to genetic variability.
Mitochondrial DNA
The DNA located in mitochondria, passed from mothers to their offspring, and used in studies of maternal lineage and evolution.
Time to Coalescence
The period it takes for all alleles of a gene in a population to trace back to a single ancestral allele.
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