DNA polymerases cannot initiate DNA synthesis on duplex or single-stranded DNA without a primer.

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#Id: 9572

#Unit 11. Evolution and Behavior

The Forces of Evolution

Mutation, 

Genetic drift

Gene flow or migration

Selection

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#Id: 7102

#Unit 6. System Physiology – Plant

Aminoethoxy-vinylglycine (AVG) and aminooxyacetic acid (AOA) block the conversion of AdoMet to ACC.

AVG and AOA are known to inhibit enzymes that use the cofactor pyridoxal phosphate. The cobalt ion (Co2+) is also an inhibitor of the ethylene biosynthetic pathway, blocking the conversion of ACC to ethylene by ACC oxidase, the last step in ethylene biosynthesis

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#Id: 8526

#Unit 2. Cellular Organization

Polyglutamylation and polyglycylation are likely mutually exclusive, so they would not normally occur at the same time & both can enhance microtubule stability,

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#Id: 3324

#Unit 6. System Physiology – Plant

These oppositely charged ions attract each other on opposite faces of the membrane, generating a charge separation, or electric potential, across the membrane.

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#Id: 2847

#Unit 13. Methods in Biology

In Size exclusion chromatography (SEC) molecules dissolved in the matrix or stationary phase or high retention time or small molecular weight elute last.