The cholesterol efflux from the sperm cell membrane is thought to change the location of its “lipid rafts,” contain receptor proteins that can bind the zona pellucida and participate in the acrosome reaction

TLS Online TPP Program

#Id: 6844

#Unit 8. Inheritance Biology

HERITABILITY BY PARENT–OFFSPRING REGRESSION When genetic differences are responsible for phenotypic variance, offspring should resemble their parents more than they resemble unrelated individuals.

TLS Online TPP Program

#Id: 6648

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 2454

#Unit 3. Fundamental Processes

Negative control of the lac operon. 

No lactose; repression. The lacI gene produces repressor, which binds to the operator and blocks RNA polymerase from transcribing the lac genes.

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#Id: 6772

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 4256

#Unit 12. Applied Biology

Passaging, is the removal of the medium and transfer of cells from a previous culture into fresh growth medium, a procedure that enables the further propagation of the cell line or cell strain.