________ ensures that each B cell produces only one immunoglobulin
A) Self-activation
B) Allelic exclusion
C) MHC interaction
D) Clonal deletion
Answer: B
Biology & Microbiology
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Fill in the blank(s) with correct word
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Which type of epithelium is found in the inner lining of blood vessels?
a. simple squamous epithelium b. stratified squamous epithelium c. cuboidal epithelium d. simple columnar epithelium e. simple pseudostratified columnar epithelium
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How do fossils provide evidence of evolution? How are scientists able to determine the age of fossils? What will be an ideal response?
Biology & Microbiology
Which one of the following is a correct molecular formula?
Biology & Microbiology