How does gel electrophoresis allow researchers to observe genetic variation?
A)Gel electrophoresis enables a scientist to identify dominant and recessive traits.
B)Gel electrophoresis enables scientists to identify alleles that vary.
C)Gel electrophoresis enables scientists to replicate a strand of DNA.
D)Gel electrophoresis enables a scientist to link phenotype to genotype.
E)Protein gel electrophoresis enables a scientist to sequence DNA.

Question

Quizplus · Accepted Answer

Gel electrophoresis separates fragments of DNA based on size, allowing scientists to observe differences in allele size or sequence. This technique is commonly used to study genetic variation within and between populations.

How Does Gel Electrophoresis Allow Researchers to Observe Genetic Variation