Alternative splicing is often associated with weak splice sites.

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#Id: 4463

#Unit 13. Methods in Biology

Scanning tunneling microscopy- uses thin metal (tungsten) probe that scans specimen revealing the bumps and depressions of the atoms on the surface of the specimen

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#Id: 6731

#Unit 8. Inheritance Biology

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#Id: 2543

#Unit 13. Methods in Biology

The two primers used in a PCR reaction have identical Tm for successful and specific amplification. 

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#Id: 6479

#Unit 3. Fundamental Processes

Constitutive active housekeeping genes and developmentally regulated genes have TATA-less promoters 

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#Id: 1354

#Unit 4. Cell Communication and Cell Signaling

The SH2 domain binds strongly to any peptide containing a critical four-residue core sequence:  phosphotyrosine–glutamic acid–glutamic acid–isoleucine