This site has interesting information on Restriction Enzyme protocols. An Excerpt from the page I'm recommending:
"There are some restriction enzymes which cleave partially different base sequence than recognition sequence as a result of reduced specificity when used in a large excess to substrate DNA. This phenomenon is called Star Activity. The list of enzymes for which Star Activity is noticed are shown below and the conditions to accelerate its appearance, and the base sequences cleaved by Star Activity for which such reports are available."
Biological molecules that are insoluble in aqueous solutions and soluble in organic solvents are classified as lipids. The lipids of physiological importance for humans have four major functions:
This is a set of interactive tutorials which allow the user some control over what is displayed and permit experimentation and self-learning. By clicking on buttons and manipulating images information about molecular structures can be obtained and users are free to move at their own pace.
This site has tutorials and quizzes that are based on Chime and RasMol images of the molecules and macromolecules found in biochemistry. They are intended to complement standard biochemistry texts where more explanation is provided, but where interactive 3-D images of the molecules are not available.
By "quick" we mean that in 10 minutes of your time, you'll have a working knowledge of chemistry. Skeptical? The secret is we're not using math! And don't worry — we won't try to teach you TOO much chemistry, just enough to understand the most important things that are going on.
The website of a society that is constantly orking to advance the sciences through publication of journals, organization of scientific meetings, and advocacy for funding of basic research and education.
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