A mutation during DNA replication causes a G to be inserted after the first base of the codon for tryptophan. How will this affect the growing polypeptide chain?
A) It will not be affected.
B) Elongation will stop prematurely.
C) There will be a single amino acid substitution.
D) The reading frame will be shifted to the left, and the wrong amino acids will be added from this point on.
E) An extra amino acid will be added, but the reading frame will not be affected.
D
You might also like to view...
Are plant and animal cells generally the same size?
a. Yes b. No, plant cells are generally larger. c. No, animal cells are generally larger.
Which of the following is NOT unique to
angiosperms?
a. endosperm b. a cell within the female gametophyte that has two nuclei c. pollen tubes d. double fertilization e. more than one of these is NOT unique to angiosperms
Medicine must respond with new drugs and vaccinations to the slow evolution of disease-causing organisms such as
bacteria and viruses. __________________ Indicate whether the statement is true or false.
How would you recognize an antibiotic-producing soil bacterium on a plate crowded with other bacteria? The bacterial colony producing the antibiotic would be __________.
a. surrounded by a clear area b. red or yellow c. star-shaped d. visible as masses called mycelia e. characterized by pseudopods