Blue Light Is a Portion of the Visible Spectrum That

question 9

Multiple Choice

Blue light is a portion of the visible spectrum that penetrates deep into bodies of water. Ultraviolet (UV) light, though, can penetrate even deeper. A gene within a population of marine fish that inhabits depths from 500 m to 1,000 m has an allele for a photopigment that is sensitive to UV light, and another allele for a photopigment that is sensitive to blue light. Which of the graphs in Figure 21.1 best depicts the predicted distribution of these alleles within a population if the fish that carry these alleles prefer to locate themselves where they can see best? Figure 21.1

• A) A
• B) B
• C) C
• D) D

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Definitions:

Regulatory Molecules

Chemicals within biological organisms that control or regulate the activity of genes and proteins, playing crucial roles in processes such as metabolism and cell division.

Active Site

The specific region of an enzyme where substrate molecules bind and undergo a chemical reaction.

Feedback Inhibition

is a regulatory mechanism where the output of a process inhibits the process itself, often used in metabolic pathways to maintain balance.

Metabolic Pathway

Series of enzyme-mediated reactions by which cells build, remodel, or break down an organic molecule.