Question: In the following drawing, the top strand is the template DNA, and the bottom strand shows a segme…
Show transcribed image text In the following drawing, the top strand is the template DNA, and the bottom strand shows a segment of the lagging strand prior to the action of DNA polymerase 1. The lagging strand contains two Okazaki fragments, O1 and O2. O1 is made before O2. The RNA primers (represented by asterisks), x, y, and z, have not yet been removed. (1) Label the polarity of the daughter strand. (2) which function of DNA polymerase I is needed for the removal of RNA primers? (3) Eventually DNA ligase act on the lagging strand. Use an arrow to indicate a position where it will be needed. (There is more than one such position. If you indicated more than one, all of them need to be correct to receive point. No partial point) 19. Degeneracy in the genetic code is best illustrated by: A) stop codons. B) threonine codons. C) tryptophan codons. D) methionine codons. E) operator sequences. 20. How does a nonsense suppressor mutation prevent amber mutants from terminating their polypeptides prematurely? A) The mutation turns the n alters a tRNA so that it reads the amber codon and inserts an amino acid. C) The mutation alters the release factors that would halt synthesis. D) The mutation results in a wobble that allows synthesis to continue. E) The mutation replaces the amber codon with an ochre codon.
In the following drawing, the top strand is the template DNA, and the bottom strand shows a segment of the lagging strand prior to the action of DNA polymerase 1. The lagging strand contains two Okazaki fragments, O1 and O2. O1 is made before O2. The RNA primers (represented by asterisks), x, y, and z, have not yet been removed. (1) Label the polarity of the daughter strand. (2) which function of DNA polymerase I is needed for the removal of RNA primers? (3) Eventually DNA ligase act on the lagging strand. Use an arrow to indicate a position where it will be needed. (There is more than one such position. If you indicated more than one, all of them need to be correct to receive point. No partial point) 19. Degeneracy in the genetic code is best illustrated by: A) stop codons. B) threonine codons. C) tryptophan codons. D) methionine codons. E) operator sequences. 20. How does a nonsense suppressor mutation prevent amber mutants from terminating their polypeptides prematurely? A) The mutation turns the n alters a tRNA so that it reads the amber codon and inserts an amino acid. C) The mutation alters the release factors that would halt synthesis. D) The mutation results in a wobble that allows synthesis to continue. E) The mutation replaces the amber codon with an ochre codon.
