Please Use the Following Information to Answer the Question(s) Below

question 15

Multiple Choice

Please use the following information to answer the question(s) below.
A group of six students has taken samples of their own cheek cells, purified the DNA, and used a restriction enzyme known to cut at zero, one, or two sites in a particular gene of interest.
-Analysis of the data obtained shows that two students each have two fragments, two students each have three fragments, and two students each have one only. What does this demonstrate?

• A) Each pair of students has a different gene for this function.
• B) The two students who have two fragments have one restriction site in this region.
• C) The two students who have two fragments have two restriction sites within this gene.
• D) Each of these students is heterozygous for this gene.