Practice question

Dominant marker systems reveal polymorphism as presence versus absence of amplified products, unable to differentiate heterozygous genotype from homozygous dominant genotype because band intensity does not reliably reflect dosage. RAPD uses arbitrary decamer primers producing dominant multilocus profiles with low reproducibility, while AFLP uses restriction digestion, adapter ligation and selective amplification yielding dominant bands with higher reproducibility. In contrast, RFLP, SSR and SNP are codominant, showing both alleles in heterozygous state as separate bands. ISSR can be dominant but classic pair remains RAPD and AFLP.