p53 protein product is regulated by a protein called MDM2, which works through a negative feedback loop.

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#Id: 2172

#Unit 11. Evolution and Behavior

Selection coefficient - which is the relative intensity of selection against a  genotype

Selection coefficient (1 - W)

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#Id: 1133

#Unit 2. Cellular Organization

CDK- Cyclin in Metazoans-

G1 Phase- cyclin D–CDK4/6

G1/S Phase- cyclin E–CDK2

S Phase- cyclin A–CDK2

M Phase- cyclin A/B–CDK1

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#Id: 6737

#Unit 8. Inheritance Biology

Conjugation

Direct transfer of genetic material from one bacterium to another.

Two bacteria lie close together and a connection forms between them. 

After conjugation, crossing overtakes place between homologous sequences

In conjugation, DNA is transferred only from donor to recipient, with no reciprocal exchange of genetic material. 

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#Id: 2870

#Unit 13. Methods in Biology

The characteristic absorption parameter for the sample is the extinction coefficient a, yielding the correlation I= I0e-ad.

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#Id: 7436

#Unit 5. Developmental Biology

The top of the mound continues to emit cAMP pulses and is pushed upwards by the movement of cells underneath