Immune complex reactions belong to which class of hypersensitivity reactions?
A) type I B) type II C) type III D) type IV E) type V
Answer: B
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Which of the following terms refers to both the movement of a ribosome along a piece of mRNA and the movement of a piece of one chromosome to another chromosome
A. Transduction B. Transgenesis C. Transformation D. Translocation E. Transplantation
The appendicular skeleton is attached to what?
What will be an ideal response?
Some mutations do not affect an organism's phenotype. Other mutations cause minor changes, and still others cause major changes. Which is most likely to cause a major change in an organism's phenotype?
A) a substitution of a single base B) an insertion of three consecutive bases C) the deletion of one arm of a chromosome D) a deletion of two bases at the end of a gene
After gastrulation, the next event in human embryo formation is ____
a. formation of the bones b. formation of the neural tube c. the initiation of the heart beat d. formation of the pharyngeal arches e. apoptosis between fingers and toes