Which of the Following Is Not Paired with Its Correct

question 20

Multiple Choice

Which of the following is not paired with its correct complement?

• A)N nucleotides: more abundant in rearranged heavy-chain genes than in rearranged light-chain genes
• B)second checkpoint in B-cell development: assembly of a functional B-cell receptor
• C)receptor editing: exchange of light chain for one that is not self-reactive
• D)first checkpoint in B-cell development: selection by the pre-B-cell receptor
• E)large pre-B-cell stage: constitutive expression of RAG-1 and RAG-2 proteins.

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Definitions:

Limbs

The appendages of the human body that include the arms, legs, hands, and feet, used for movement and manipulation.

Torso

The central part of the human body to which the head, arms, and legs are attached; it includes the chest, back, and abdomen.

Ears

Organs of hearing and balance in humans and other vertebrates, responsible for detecting sound waves and converting them into signals that can be processed by the brain.

Feet

The lower extremity of the leg below the ankle, on which a person stands or walks.