How Are Humans Able to Produce Billions of Unique B

question 36

Multiple Choice

How are humans able to produce billions of unique B and T cell receptors?

• A) Each time a pathogen is encountered, a new receptor is produced.
• B) The two different genes that encode receptor proteins allow for many versions of receptors to be produced.
• C) Random splicing of gene segments encoding receptor proteins allows for 2.5 billion potential combinations.
• D) Antigen-presenting cells stimulate B and T cells to each produce billions of receptor molecules.
• E) There are billions of B and T cells, each of which produces a single receptor on its cell surface.

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Definitions:

Abnormal Behaviour

Actions or behaviors that deviate significantly from what is considered normal or typical within a culture or society.

Mood Disorders

A set of mental health issues marked by continual changes in mood or feelings, for instance, depression or bipolar disorder.

Neurotransmitters

Chemical messengers that transmit signals across synapses from one neuron to another in the nervous system, influencing mental and physical processes.

Serotonin

A neurotransmitter involved in regulating mood, appetite, sleep, memory, and learning.