The length of Introns is variable while exons are almost constant in length.

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#Id: 3508

#Unit 2. Cellular Organization

Genes that share a common ancestry have similar organizations with conservation of the positions of the introns.

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#Id: 4499

#Unit 13. Methods in Biology

Einthoven’s Law

Lead I potential Lead III potential + = Lead II potential

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#Id: 2910

#Unit 13. Methods in Biology

The rate of sedimentation is dependent upon the applied centrifugal field (cm s-2), G,

that is determined by the radial distance, r, of the particle from the axis of rotation (in cm)

and the square of the angular velocity ω, of the rotor (in radians per second):

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#Id: 7068

#Unit 3. Fundamental Processes

Class I enzymes attach the amino acid to the 2’-OH of the tRNA and are generally monomeric. Class II enzymes attach the amino acid to the 3’-OH of the tRNA and are typically dimeric or tetrameric.The amino acids for which the Class I synthetases are specific tend to be larger and more hydrophobic than those for Class II synthetases.

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#Id: 895

#Unit 13. Methods in Biology

Isoschizomers are applicable in recognizing methylation sites genomes.