Differential gene expression is the process by which cells become different from one another based on the unique combination of genes that are active, or “expressed.”

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#Id: 1659

#Unit 4. Cell Communication and Cell Signaling

Passive immunization, in which preformed antibodies are transferred to a recipient.

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#Id: 6581

#Unit 7. System Physiology – Animal

Tight junctions between adjacent Sertoli cells near the basal lamina form a blood–testis barrier

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#Id: 603

#Unit 2. Cellular Organization

Cells lacking the hfl gene (and thus FtsH) almost always form lysogens upon infection by lambda Then What is fate of cI-?

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#Id: 10510

#Unit 4. Cell Communication and Cell Signaling

The principal caspase in C. elegans is CED-3

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#Id: 1043

#Unit 5. Developmental Biology

The positional information needed to construct a limb has to function in a three-dimensional coordinate system:

Proximal-distal axis

Anterior-posterior axis

Dorsal-ventral axis