If the decolorizer is not left on long enough in the Gram-staining procedure, gram-positive organisms will be stained ________ and gram-negative organisms will be stained ________.
A. purple; colorless
B. purple; purple
C. purple; pink
D. pink; pink
Answer: B
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Explain why a person with type A blood cannot receive a transfusion of type B blood. How is this process different
than a mismatched transfusion associated with the Rh antigen? What will be an ideal response?
A white blood cell surrounds and engulfs a worn-out red blood cell, forming a vesicle around the red blood cell. This process is called ________.
a. active transport b. phagocytosis c. exocytosis d. pinocytosis
The term "recombinant DNA technology" refers to
A. deliberately moving genes from one type of cell into another so that the new cell synthesizes that specific gene product. B. selective breeding. C. ensuring that a specific gene will be replicated over-and-over. D. synthesizing DNA from scratch.
You analyze two daughter cells of Bacteria A immediately after binary fission. Which of the following is ACCURATE about the daughter cells?
A. They are members of the same colony. B. They have genetically identical chromosomes. C. They are members of the same colony and they have genetic contributions from two different parent cells. D. They are members of the same colony and have genetically identical chromosomes. E. They have genetic contributions from two different parent cells.