Polar molecules are composed of covalently-bonded
A. ions.
B. atoms of different electronegativity.
C. identical atoms.
D. atoms of identical electronegativity.
E. carbon atoms.
Answer: B
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A single covalent chemical bond represents a sharing of ________ electrons between two atoms
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Certain mutations in non-Hox genes actually produce homeotic mutants due to a failure to modulate chromatin acetylation appropriately. This influence on cellular "memory" is called what?
What will be an ideal response?
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.
Nutrient-rich microenvironments can occur in the open ocean around:
a. viriplankton. b. discarded larvacean houses. c. marine snow. d. b and c