Four related EGF receptors participate in signaling by the many members of EGF family :

In the mouse - Erb-B1, 2, 3, and 4

In humans - HER 1, 2, 3, and 4

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#Unit 3. Fundamental Processes

Humans express four Argonaute proteins. AGO2 is the human Argonaute protein in miRNA-containing RISC complexes.

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#Unit 5. Developmental Biology

In Autonomous Specification

Prospective potency is equal to prospective fate.

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#Unit 13. Methods in Biology

The total magnification is a product of the magnification of the individual lenses.

Total magnification= 40X*10X

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#Unit 6. System Physiology – Plant

The nitrate reductase dimer- Three binding domains

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#Unit 2. Cellular Organization

Promoter mutations are also cis-acting. If they prevent RNA polymerase from binding at P-lac, the structural genes are never transcribed.