How do most mutations affect an organism?
A) Most mutations create cancerous cells.
B) Most mutations either are harmful, or they have no effect.
C) Most mutations are beneficial and create a more adapted organism.
D) Most mutations will kill the organism.
Answer: B
You might also like to view...
Above 41o C, ____
a. enzymes denature b. heart rate decreases c. enzyme activity increases by 50% d. hypothermia sets in e. non-shivering heat production occurs
In T. brucei rhodesiense trypanosomiasis infections, CNS invasion occurs early. The disease progresses rapidly, and death may occur before extensive CNS involvement. Inflammation of which organ is more common and severe with this disease form?
a. Kidney b. Lungs c. Liver d. Heart
Matt is studying how the protein transferrin enters cells. He examines cells that have taken up transferrin, and finds clathrin-coated vesicles. What mechanism was used to take transferrin into the cell?
A. Receptor-mediator endocytosis B. Phagocytosis C. Exocytosis D. Pinocytosis
When an electron in a pigment molecule is absorbed by a photon, it ____.
A. is always shared with another atom via a double bond B. is always shared with another atom via a single bond C. emits its extra energy and returns to its original energy level D. moves to a higher energy level and remains there E. moves to a lower energy level and remains there