The side chains of amino acids have little or no specific affinity for the purine and pyrimidine bases found in RNA.

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#Id: 4497

#Unit 13. Methods in Biology

In recording limb lead II, the negative terminal of the electrocardiograph is connected to the right arm and the positive terminal is connected to the left leg.

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#Id: 9345

#Unit 4. Cell Communication and Cell Signaling

TGF-β activation

By cytoskeletal force transmitted by integrins

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#Id: 4274

#Unit 12. Applied Biology

To check the cell viability in cell suspension, trypan blue dye is used. This dye is excluded by viable cells but taken up by dead cells (nonviable cells).

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#Id: 7235

#Unit 5. Developmental Biology

T Helper Subset Differentiation

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#Id: 3186

#Unit 3. Fundamental Processes

Mitochondria use different origin sequences to initiate replication of each DNA strand

Replication of the H strand is initiated in a D loop.

Replication of the L strand is initiated when its origin is exposed by the movement of the first replication fork.