In antibody-dependent cytotoxic allergic reactions (type II), the binding of _____ to targeted cells results in lysis of those cells.
A. antibodies
B. antigens
C. helper T cells
D. histamine
Answer: A. antibodies
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What will be an ideal response?
To denature an enzyme is to
A. activate the enzyme. B. change the protein structure of the enzyme. C. increase the enzyme's turnover number. D. attach the enzyme to the substrate.
A geneticist conducts a 2-point test cross between two linked genes on Drosophila for body color (wild type gray, b+ and mutant black, b) and wing shape (wild type normal, vg+ and mutant vestigial, vg). She wants the heterozygote for the test cross to be in the repulsion (trans) configuration. What original P generation parents must she cross to create her heterozygote for the test cross?
a) b+b+/vgvg x bb/vg+vg+ b) b+b+/vg+vg+ x bb/vgvg c) b+b/vg+vg x bb/vgvg d) b+b+/vg+vg+ x b+b+/vg+vg+
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What will be an ideal response?