Question

the diagram below shows the gel electrophoresis results of an edna study. according to the results shown, at which test sites were bighead carp found? north shore site 1 north shore site 2 chicago site 1 chicago site 2 calumet site 1 calumet site 2 negative control positive control bighead carp dna marker (300 bp) click here for long description a. both chicago sites 1 and 2 b. only calumet site 2 c. both north shore sites 1 and 2 d. only calumet site 1

Explanation:

Gel electrophoresis separates DNA fragments. Bighead carp are identified by the presence of their specific DNA marker (300 bp). Looking at the gel, the 300 - bp band is present only in Calumet site 1.

Answer:

D. Only Calumet site 1