The type of chemical bond that holds together adenine and thymine in the middle of a DNA molecule
is a ________________ bond. Fill in the blank(s) with the appropriate word(s).
ANS: hydrogen
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Steroid hormone-nuclear receptor complexes:
A. have two adjacent zinc fingers in their DNA binding domain. B. bind to DNA in their monomeric form. C. have N-terminal ligand binding domains. D. are expressed uniformly in all cells.
Mycolic acids are targeted by isoniazid in the treatment of
A. S. aureus. B. S. epidermidis. C. M. luteus. D. M. tuberculosis.
What critical role is often played by pigs in the epidemiology of influenza virus?
A. Pigs are the reservoir for influenza virus and most humans become infected by contact with respiratory secretions of pigs. B. Pigs are the reservoir for influenza viruses and disease can be transmitted to humans by consuming undercooked pork. C. Pigs harbor influenza viruses that are much more virulent than avian strains and human strains. D. Pigs can become infected simultaneously with both human, avian, and swine varieties of influenza viruses, providing an opportunity for genetic recombination resulting in antigenic drift.
Foods made from refined white flour and refined sugars ____
a. promote fat usage b. include complex carbohydrates c. are linked to increased risk of heart disease and type 2 diabetes d. have little impact on insulin levels e. are an essential part of a balanced diet