The Drawings Below Represent Several Different Versions of Human Chromosome

question 29

Multiple Choice

The drawings below represent several different versions of human chromosome 2. In each one, the gray region of the chromosome represents the gene that codes for the light chain of the myosin protein (the drawing is not to scale) . Diagram 1 represents the nonmutant human chromosome 2. Among diagrams 2 through 4, which represents a mutation of chromosome 2?

• A)diagram 2
• B)diagrams 3 and 4
• C)diagrams 2, 3, and 4
• D)None of the answer options is correct.

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Definitions:

Evolution of Neurons

The historical development of nerve cells (neurons) from non-neuronal precursor cells, critical for the development of nervous systems.

Bilaterians

Organisms that have bilateral symmetry during some stage of their development, including humans, most animals, and insects.

Cnidarians

A phylum of aquatic invertebrate animals that includes jellyfish, corals, sea anemones, and hydra, characterized by their cnidocytes.

Predatory Attacks

The acts wherein predators attempt to capture, kill, and consume their prey.