Why Is It Essential That Genetic Markers Used in Mapping

question 18

Multiple Choice

Why is it essential that genetic markers used in mapping disease genes be polymorphic?

• A) If the marker isn't polymorphic, its position cannot be known.
• B) If the marker isn't polymorphic, then it's impossible to use genetic mapping techniques to establish an association between the marker and the disease gene.
• C) If the marker isn't polymorphic, it cannot be physically linked to a gene associated with human disease.
• D) If the marker isn't polymorphic, then it will not be inherited in any predictable manner.

---

Definitions:

Complete Proteins

Proteins that contain all nine essential amino acids necessary for the dietary needs of humans.

Side Chain

The part of an organic molecule that is attached to the main chain (or backbone) of the molecule, which can influence the molecule's properties and reactivity.

Valine

An essential amino acid that is crucial for muscle growth, tissue repair, and energy provision in the body.

5-Membered Ring

A cyclic structure in organic chemistry consisting of five atoms, which can be of the same or different elements.