What is meant by punctuation in terms of the genetic code?
What will be an ideal response?
Certain triplets (AUG) commonly signal the starting point for protein synthesis; other triplets (UAA, UGA, UAG) typically signal stop.
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The outside of a neuron is positively charged at resting potential. Why don't negative ions exit from the cell to normalize charge across the membrane?
A. The positive charge outside the cell repels negative ions. B. There are no negative ions inside the cell. C. All of the chloride ions are already outside the cell. D. The negative charge inside the cell is carried by large proteins that cannot diffuse through the membrane.
The major causes of plant diseases are
a. protozoa. b. viruses. c. bacteria. d. worms. e. fungi.
From which of the following fungi was LSD
first isolated?
a. Saccharomyces b. Aspergillus c. Ergot d. Morel e. Cephalosporium
Some bones have __________ that makes blood
cells. Fill in the blank(s) with the appropriate word(s).