Which of the following statements about adherence is true? View Available Hint(s) Which of the following statements about adherence is true? Most bacterial adhesins are glycoproteins or lipoproteins. The host cell receptors for bacterial adhesins are usually proteins. Adhesins are always located on the bacterium's cell membrane. Most bacteria can adhere to any cell in the host.

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.