what is one possible reason that mutation 2 leads to the production of normal blood cells rather than sickle- shaped blood cells ? The mRNA codon GAG acts as a stop signal rather than coding for an amino acid. The mRNA codon GAG corresponds to the tRNA molecule that can carry more than one amino acid. The mRNA codon GAG is unreadable and is therefore skipped over during protein synthesis. The mRNA codons GAA and GAG both code for the same amino acid.

The development of_ factored in the development of complex organisms.

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .