Evidence supporting E. coli DNA polymerase III having the major role in nucleotide incorporation during replication includes:

a) A point mutation can inactivate DNA pol III and inhibit replication.

b) DNA polymerase III has a high Vmax.

c) Replication is blocked at high temperatures in temperature sensitive mutants with a thermolabile form of DNA polymerase III.

d) There are ten or fewer molecules of enzyme per cell.

e) All of the above.

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

20 the compound al(nh3)2 has atoms of nitrogen.

How does the carbon cycle involve an exchange of carbon