A relationship that affects the populations of two or more species adversely is referred to as ________ competition
Fill in the blank(s) with correct word
interspecific
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Pemphigus vulgaris is an autoimmune disorder in humans in which antibodies are produced against the cadherins of desmosomes. The blistering of the skin and mucous membranes characteristic of this disorder is probably a result of _____
A) a decrease in flexibility of the cell membrane B) an inadequate number of G-protein receptors C) inadequate production of cytoskeletal proteins D) a loss in cell-cell adhesion
After a B cell is activated, it no longer needs T cell interactions or cytokines to make antibody
Indicate whether the statement is true or false.
DNA replication is always
A) discontinuous. B) bidirectional. C) conservative. D) semiconservative. E) dispersive.
If the quantities of the four bases in a DNA molecule are measured, we find that
A) T = A and C = G. B) A = G and C = T. C) A = C and G = T. D) no two bases are equal in amount. E) all bases are equal in amount.