Possessing the Entire Sequence of a Particular Human Genome May

question 49

Multiple Choice

Possessing the entire sequence of a particular human genome may not be as useful as we think. Why not?

• A) Every human genome is different enough that knowing ONE human's DNA sequence can't tell us almost anything about ALL humans.
• B) It's not the DNA sequence that matters-we need to know the mRNA sequence of the human genome.
• C) Due to the presence of introns/exons, and splicing of RNA after transcription, the DNA sequence doesn't necessarily tell us the exact number/type of proteins that will eventually be made from it.
• D) The amount of "junk DNA" present in the human genome masks any useful genetic information that we'd like to obtain.
• E) Due to the presence of introns/exons, and pre-transcriptional modification, the protein profile varies considerably among people, so it would be better to determine that.

---

Definitions:

Erythrocyte

A red blood cell, which carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

Amino Acid

A building block of proteins, consisting of an amino group, a carboxyl group, and a specific side chain.

Efferent Arteriole

A blood vessel that carries blood away from the glomerulus of the kidney to the peritubular capillaries, playing a crucial role in regulating blood pressure within the glomerulus.

Afferent Arteriole

A small artery that leads into a capillary, especially the one leading into the glomeruli of the kidney, where it brings blood for filtration.