A Difference Between Type II Restriction Enzyme and Type I

question 48

Multiple Choice

A difference between type II restriction enzyme and type I or type III restriction enzymes is that

• A) type II enzymes require shorter recognition sequences.
• B) type II enzymes cut at the recognition sequence rather than elsewhere.
• C) type I and III cut palindromic sequences but type II does not.
• D) type I and III require different proteins for methylation and cutting.
• E) type II enzymes are found only in Gram-positive bacteria.

Understand the role of G proteins in sensory perception and how their blockade can affect sensory signal transduction.

Comprehend the consequences of sensory receptor damage on perception and signal transduction.

Schematic understanding of sensory pathways, including the flow of information from sensory receptors to the brain for processing.

Recognize specific adaptations in sensory systems, such as the olfactory system's sensitivity to chemical gradients and the role of accessory olfactory structures.

---

Definitions:

Carriers

Individuals or organisms that possess and can transmit a gene or infectious agent to others without necessarily showing symptoms of disease themselves.

Express

To convey a thought or feeling through words, gestures, or actions.

Neural Tube

An embryonic structure that develops into the brain and spinal cord of an organism during early pregnancy.

Primitive Streak

An early sign of development in the embryo, marking the beginning of gastrulation and establishing the future axis of the body.