Imagine that you compare two DNA sequences found in the same location on homologous chromosomes. On one of the homologs, the sequence is AACTACGA. On the other homolog, the sequence is AACTTCGA. Within a population, you discover that each of these sequences is common. These sequences ________.
A) contain an SNP that may be useful for genetic mapping
B) identify a protein-coding region of a gene
C) cause disease
D) protect against disease
E) do none of the listed actions

Question

Quizplus · Accepted Answer

The two sequences differ by one nucleotide, which indicates the presence of a Single Nucleotide Polymorphism (SNP). SNPs can be useful for genetic mapping because they allow researchers to track inheritance patterns of alleles within a population. The other options are not supported by the information given.

Imagine That You Compare Two DNA Sequences Found in the Same