Sections of DNA that are conserved among species can be identified by performing a zoo blot. We use short fragments from the region as labeled probes to test for homologous DNA from a variety of species by Southern blotting.

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#Unit 10. Ecological Principles

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#Unit 4. Cell Communication and Cell Signaling

Inactive PKA is a tetramer consisting of- 

two regulatory (R) subunits

two catalytic (C) subunits

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#Unit 5. Developmental Biology

The molecular processes of capacitation prepare the sperm for the acrosome reaction and enable the sperm to become hyperactive

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#Unit 11. Evolution and Behavior

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#Unit 3. Fundamental Processes

The helicase DnaB is responsible for interacting with the primase DnaG to initiate each Okazaki fragment.