What antibody is most involved in the allergic response?
A) IgD
B) IgM
C) IgG
D) IgE
E) IgA
Ans: D) IgE
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Prokaryotes reproduce rapidly and this allows genetic variation to spread quickly through a population. Two processes can create new variations in prokaryotic populations. Select the choice with those two processes.
A. mutation and phage viral attack B. phage viral attack and genetic recombination C. genetic recombination and nondisjunction D. genetic recombination and mutation E. genetic recombination and rapid cell division
In a ________ assay, DNA extracted from a microbial community or environmental sample is incubated with selected complementary probe or sample sequences (often ________) and allowed to hybridize. The level of hybridization to each probe (gene) is measured. Analysis of DNA hybridization thus reveals the presence or absence of the specific genes in the environment. Most importantly, this can be done without ________.
What will be an ideal response?
The main purpose of fermentation reactions is to
a. produce ATP. b. regenerate the electron carriers needed for glycolysis. c. produce the building blocks for biological molecules. d. prepare the pyruvate for the Krebs cycle. e. provide various products useful for man.
A(n) ________ is a group of cells of similar type that work together to serve a common function
Fill in the blank(s) with correct word