All of the following are contiguous membrane domains except
a. rough ER.
b. secretory granules.
c. smooth ER.
d. transitional ER.
Ans: b. secretory granules.
You might also like to view...
Mendel's experiments with garden peas differed from those of other plant hybridizers of the time in that:
A. Mendel studied true-breeding strains, rather than poorly defined material. B. Mendel focused on a small number of easily contrasted traits, rather than a large number of more complex traits. C. Mendel quantified his results and looked for statistical patterns, rather than simply noting the presence or absence of a trait among a group of offspring. D. Mendel performed no crosses between strains, whereas other hybridizers did. E. Mendel studied true-breeding strains, focused on a small number of easily contrasted traits, and quantified results.
In order to distinguish between individuals, DNA genotyping (DNA profiling) detects the difference in short tandem repeats:
A. on unique genes, for example histones (H1A). B. on a single chromosome, the repeats being approximately 200 bp. C. on homologs, the repeats being approximately 200 bp. D. on a single chromosome, the repeats being usually <100 bp. E. on homologs, the repeats being usually <100 bp.
Feces in a sterile specimen cup is:
a. acceptable. b. not acceptable.
What is true regarding antigens?
A. The most effective antigens are small simple amino acid complexes. B. Bacteria do not contain antigens. C. A large antigen is likely to have many different epitopes, each of which can stimulate a distinct immune response. D. An antigen is a molecule that promotes a general immune response. E. Antigens can only be recognized by their lipid moieties.