A systemic release of histamine and other inflammatory mediators leads to the most dramatic immediate hypersensitivity reaction known as ______.
What will be an ideal response?
anaphylactic shock
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What is the main difference between mismatch repair (MMR) in eukaryotes and prokaryotes?
A. Eukaryotes lack a functional Mut H and Dam methylase. B. Eukaryotes have proteins homologous to MutS and MutH but not MutL. C. Eukaryotes only repair the lagging strand. D. Prokaryotic MMR can repair small loops of unpaired nucleotides, whereas eukaryotes cannot. E. Both use exonucleases to eliminate the mismatched strand but eukaryotes only require 3'-5' exonucleases.
Which of the following is an example of a phenotype?
a. a cat’s genome b. the color and length of a cat’s fur c. the alleles that a female passes on to her offspring d. the DNA sequence of an allele e. the DNA sequence of an allele and the alleles that a female passes on to her offspring
You suffer a bee sting that leaves a red mark and is warm as well as itchy. What actions would be blocked by the medication that would be best to treat this body reaction?
A) interferons B) complement proteins C) pyrogens D) histamine
Catastrophism was Cuvier's attempt to explain the existence of _____
A) evolution B) the fossil record C) uniformitarianism D) the origin of new species