Which of the following would also work as an enhancer for the following bi-directional enhancer?
5' GTTC 3' 3' CAAG 5'
A. 5' GAAC 3' 3' CTTG 5'
B. 5' CTTG 3' 3' GAAC 5'
C. 5' CAAG 3' 3' GTTC 5'
D. 5' CTTC 3' 3' GAAG 5'
A
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If you were designing a study of human digestion, and you decided to add a chemical which would become visible in the target area for antacids, where would the chemical become visible?
A. mouth B. esophagus C. small intestine D. stomach E. large intestine
A cytotoxic T lymphocyte, having been activated against a particular viral antigen, "sees" this same antigen displayed on the surface of a host cell. What will happen?
A. The cytotoxic body cell will activate B cells which then produce antibody against the antigen. B. The cytotoxic T cell will produce proteins that cause the host body cell to die. C. The cytotoxic T cell will produce antibodies against the antigen. D. The antigen will move inside of the host body cell, thereby hiding from the cytotoxic T cell.
Concerning the sex chromosomes, which of the
following is correct? a. The Y chromosome carries a greater number of genes for nonsexual traits than does the X. b. X and Y are different in size but carry nearly equal numbers of genes. c. The X chromosome carries more genes for nonsexual traits than does the Y. d. The X chromosome carries only gender-related genes. e. The X chromosome carries the SRY gene.
Blood leaving the right ventricle enters the ____________________ circulation. Fill in the blank(s) with the appropriate word(s)