Plasma membranes are a feature of
A. all cells.
B. prokaryotic cells only.
C. eukaryotic cells only.
D. plant cells only.
E. animal cells only.
A. all cells.
You might also like to view...
Which of the following is incorrect with respect to translation and the genetic code?
A. In bacteria, there is a direct correlation between the order of amino acids and the order of nucleotides in the gene encoding for a protein. B. The insertion of one or two nucleotides into the coding sequence will cause a shift in the reading frame. C. A codon is three nucleotides in length. D. AUG is the start codon and encodes for a methionine (or derivative of methionine) at the carboxyl end of the protein.
The genes for hemoglobin ____
a. are found only in red blood cells b. are never regulated c. contain only introns d. are turned off in a small percentage of body cells e. are found in all body cells
Which of the following represents energy flow in a grazing food web?
A. Producers ? detritivores ? decomposers B. Producers ? decomposers ? detritivores C. Producers ? herbivores ? decomposers ? carnivores D. Producers ? herbivores ? carnivores ? decomposers E. Producers ? herbivores ? detritivores ? carnivores
In an immunodiffusion test to diagnose histoplasmosis, a patient's serum is placed in a well in an agar plate. In a positive test, a line forms as the serum diffuses from the well and meets material diffusing from a second well. What type of test is this?
A) an agglutination reaction B) a precipitation reaction C) a complement-fixation test D) an indirect ELISA test E) a direct ELISA test