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Chapter 20 – Biotechnology follow along in class notes

The purpose of the activities is to help go here review material you have already ap biology frq gel electrophoresis in class or have read in your text.

Some of the material will extend your knowledge beyond your classwork or textbook reading. At the end biology frq each activity, you can assess your progress through a Self-Quiz. To begin, click on an activity title.

Oxidative Phosphorylation via the Electron Transport Chain. The Effect of Glucose /north-georgia-college-admissions-essay.html Lactose on the lac Operon.

In the s, scientists discovered that bacteria have ap biology frq gel electrophoresis that cut, or "digest," the DNA of foreign organisms and ap biology frq gel electrophoresis protect the cells from invaders such as viruses. Scientists have now isolated several ap biology frq gel electrophoresis of these enzymes, known as restriction enzymesor restriction endonucleases.

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Each is able to recognize and cut at a specific DNA sequence, known as a recognition sequence. The discovery of restriction enzymes made click engineering possible because researchers could use them to cut DNA into fragments that could be analyzed and used in a variety of procedures. In this part of the laboratory, you will use gel electrophoresis to separate samples of DNA that have been digested by restriction enzymes.

Then you will ap biology frq gel electrophoresis fragments of unknown size to fragments of a known size to calculate the unknown fragment sizes. Movement of Molecules in Solution Closer Look: Concentration Gradient Concept 4: Movement of Molecules and Cells Concept 5: Water Potential Concept 7: Calculating Water Potential Ap biology frq gel electrophoresis 8: Water Potential and Potato Cores Exercise 4: Water Potential Exercise 5: Osmosis Analysis of Results Ap biology frq gel electrophoresis Ap biology frq gel electrophoresis.

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Restriction enzymes are endonucleases that actually cut the phosphodiester bonds on the sides of deoxyribonucleic acid. These endonucleases recognize specific DNA sequences in double-stranded DNA, which is usually a four to six base pair sequence of nucleotides. The endonucleases then digest the DNA at these sites.

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