Alternative RNA splicing is a method that apparently evolved for the production of many different polypeptides from the same pre-mRNA. Provide an example of alternative splicing

What will be an ideal response?


Various splicing schemes occur in the CT/CGRP gene in different tissues. In thyroid tissue, only the first four exons remain, whereas in the brain, exons 5 and 6 are included, but not exon 4.

Biology & Microbiology

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True or false: Marine fish have impermeable renal tubules, allowing them to reabsorb scarce elecrolytes without also reabsorbing water they are trying to eliminate

A. true B. false

Biology & Microbiology

The French taxonomist who, in 1809, proposed the first testable evolutionary theory that organisms using body parts repeatedly would increase their abilities was

A. Jean Baptiste Lamarck. B. Georges-Louis Buffon. C. Charles Darwin. D. James Hutton. E. Charles Lyell.

Biology & Microbiology

True or False: Once someone has been diagnosed with stage 4 cancer, there are no further treatment options that may help.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Sickle-cell anemia is caused by ____

a. an RNA error b. expansion mutation c. deletion mutation d. fragile X syndrome e. a base-pair substitution mutation

Biology & Microbiology