Which of the following contributes to the extensive variability of immunoglobin genes?
A. The genes for the light-chain variable regions undergo rearrangement in germ-line cells.
B. RNA transcripts from the recombinant genes undergo splicing that further changes the combinations in the final protein chains.
C. The light chains generated by rearrangement and splicing can combine with the numerous heavy chains that have also undergone rearrangement and splicing. This results in even more variability in the final assembled antibody.
D. The genes for the heavy-chain variable regions undergo rearrangement in germ-line cells.
E. All of the choices given are correct.
E
You might also like to view...
Do all of the carbon atoms in glucose participate in the formation of the ring?
a. yes b. no
Four of the following plants aremonocots. Which one is the exception?
a. orchid b. wheat c. maple d. grass e. palm
DNA barcoding:
A: is a type of reverse genetics. B: is the most commonly used type of DNA fingerprinting used by the FBI. C: attempts to provide a unique sequence identifier for all life forms. D: is based mainly on repetitive DNA. E: is used for prenatal genetic screening.
The cell walls of bacteria are responsible for the shape of the bacteria and the difference in the Gram stain reaction
Indicate whether the statement is true or false