In an experiment discussed in class, Francis Crick isolated revertants of the mutation FC0. FC0 is a ( ) frameshift mutation in the rIIA cistron of phage T4. Most of the isolated revertants resulted from second site mutations within the rIIA cistron. One of these second site mutations was called FC10. Crick then separated away FC10 from FC0 and found that FC10 had an rII- phenotype. He then selected for phenotypic revertants of the FC10 mutation and recovered a second site suppressing mutation that he called FC63. Is FC63 a ( ) frameshift mutation or a (-) frameshift mutation.

Which survival need shortage would most affect articular cartilage's ability to rebound after joint compression, and why does it have this effect? which survival need shortage would most affect articular cartilage's ability to rebound after joint compression, and why does it have this effect? nutrients, since the majority of cartilage is made out of polysaccharide glycosaminoglycans (gags). water, since it makes up to 80% of cartilage's content and cushion articular bone surfaces. normal body temperature, since higher temperatures would slow down necessary biochemical reactions. oxygen, since cartilage cells receive this gas directly from nearby blood vessels?