An Important Advantage of Having Two Gene Loci (κ and λ)For

question 13

Multiple Choice

An important advantage of having two gene loci (κ and λ) for the light chain is

• A)that the likelihood of a successful rearrangement of light-chain genes increases.
• B)that immunoglobulins are homogeneous and not heterogeneous in mature B cells.
• C)that different effector functions are conferred by the two different light-chain loci.
• D)that surrogate light-chain transcription cannot compete with κ and λ transcription and enables B-cell development.
• E)all of the above.

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Definitions:

Oxygen

A chemical element (O) essential for cellular respiration in living organisms and a component of the earth's atmosphere.

Maternal Blood

Blood circulating in a pregnant woman that provides nutrients and oxygen to both the mother and the fetus.

Embryonic Blood

Blood cells that are present in an embryo, fundamental in the development of the circulatory system.

Fetal Blood

Blood that circulates through a fetus, which has unique properties, such as a higher concentration of hemoglobin, to efficiently carry oxygen from the placenta.