In a humoral or antibody-mediated immune response, specific B cells are stimulated by Helper T cells to transform into plasma cells that secrete antibodies. What would be an important feature added to B cells In this transition process?
A) Duplication of specific gene sequences for the appropriate antibody.
B) Increased rough endoplasmic reticulum in order to have the surface area needed for antibody production.
C) Duplication of lysosomes in order to store the antibodies before transport.
B
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Pairs of alleles are found at a particular ____ on a pair of ____
a. gene; gametes b. base; homozygous genes c. nucleotide; genes d. locus; homologous chromosomes e. sister chromatid; homologous chromosomes
Cavitation would have no effect on translocation.
Answer the following statement true (T) or false (F)
The species concept defined as a group of organisms that are capable of interbreeding to produce fertile offspring is ________
A) the morphospecies concept B) the phylogenetic species concept C) the biological species concept D) the ecological species concept
Which of the following procedures is currently the standard test used in the United States for evaluating the efficiency of antiseptics and disinfectants?
A) use-dilution test B) microbial death rate C) in-use test D) Kelsey-Sykes capacity test E) phenol coefficient