Which of the following mutations have the most significant effect on protein synthesis?
a. Base pair substitutions
b. Silent mutations
c. Intron mutations
d. Frameshift mutations
ANS: D
The frameshift mutation involves the insertion or deletion of one or more base pairs of the DNA molecule. This greatly alters the amino acid sequence, which affects protein synthesis. The base pair substitution is a type of mutation in which one base pair replaces another. Silent mutations do not change amino acids or protein synthesis. Intron mutations are part of RNA sequencing.
You might also like to view...
A pregnant woman's diet may not meet her need for folate. A good source of this nutrient is:
a. Chicken. b. Cheese. c. Potatoes. d. Green leafy vegetables.
The nurse is caring for a client with acquired immunodeficiency syndrome (AIDS) who is antiretroviral therapy. The client complains of nausea, fever, severe diarrhea, and anorexia
Which prescribed medications does the nurse anticipate in order to relieve the anorexia and to stimulate the client's appetite? Select all that apply. A) Dronabinol (Marinol) B) Zidovudine (Retrovir, AZT) C) Abacavir (Ziagen) D) Ciprofloxacin (Cipro) E) Megestrol (Megace)
Robert Frost, the great American poet, said, "Some men see things as they are and say why? I dream of things that never were and say why not?" This statement best reflects which of the fol-lowing types of leadership?
A. Stewardship B. Change C. Vision D. Power
The _____ is/are responsible for oxygen and carbon dioxide transport to and from the maternal bloodstream
a. Decidua basalis c. Germ layer b. Blastocyst d. Chorionic villi