A dye often used for its ease and sensitivity to visualize nucleic acid after agarose gel electrophoresis is
A. nigrosin.
B. malachite green.
C. gold oxide.
D. ethidium bromide.
D
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A virus is most analogous to a(an)
a. bank robber. b. pirate. c. embezzler. d. attack dog. e. drug dealer
Which of the following is NOT accurate
concerning ionization? a. When one atom loses electrons, another must gain electrons. b. When an atom loses an electron, it becomes negatively charged. c. Ionic bonds form between ionized atoms. d. In the compound NaCl, Na loses an electron to become positive. e. In an ion, the number of protons and electrons is unequal
Explain why Mendel choose seven different varieties of pea plants for his experiments. What will be an ideal response?
What protects mRNA from attack by cellular enzymes?
A) RNA splicing B) the removal of exons C) the lack of RNA-digesting enzymes in the cytoplasm D) a cap and tail