Which molecular technique can be used to identify whether labeled foods are actually labeled correctly?
A) Microsatellites that tell us if red meat is actually beef or venison.
B) SNPs that are used to identify genetically-modified chicken.
C) Sanger sequencing that tells us if seafood is actually dolphin.
D) DNA barcoding that is used to identify fish species

Question

Quizplus · Accepted Answer

DNA barcoding is a molecular technique that can be used to identify different species, including fish species. By comparing DNA sequences from the food sample with a reference database, it can be determined whether the labeled food matches the actual species present. Microsatellites (A) can also be used to identify different species, but they are more commonly used for population genetics studies. SNPs (B) are markers used to identify genetic variation within a species, but they would not be able to distinguish between GM and non-GM chicken. Sanger sequencing (C) is a labor-intensive and expensive technique that is not well-suited to large-scale food testing.

Which Molecular Technique Can Be Used to Identify Whether Labeled