The Exon Theory of Genes States That

question 29

Multiple Choice

The exon theory of genes states that

• A)genes consist solely of exons.
• B)introns are deleterious and are purged from the genome.
• C)introns lead to recombination errors.
• D)many current genes arose through the rearrangement of exons.
• E)introns disrupt protein structure.

---

Definitions:

Adrenal Cortex

The outer part of the adrenal gland that produces essential hormones like cortisol and aldosterone, which regulate metabolism, blood pressure, and stress response.

Hypotonic

Describes a solution that has a lower osmotic pressure than another fluid, often causing cells to swell as water moves into them.

Isotonic

Refers to a solution that has the same salt concentration as the cells and the blood of the body or to muscle movements where tension remains unchanged and the muscle's length changes.

Hypertonic

Referring to a solution that has a higher concentration of solutes than another solution, leading to osmosis.