Cesium is used in the separation of DNA with different densities. Cesium chloride (CsCl) acts as a density gradient for the separation of the DNA (Deoxy ribonucleic acid), and is used in gradient centrifugation.
CsCl density centrifugation:
- CaCl solution is kept in the centrifuge tube along with the DNA sample to be separated.
- The centrifugation causes the solutions to form bands with the denser part at the bottom and the least denser part at the top.
- The DNA with its density similar to a particular layer of CsCl solution density forms a band in that layer.
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Answer:
C
Explanation:
He is doing the same exact experiment, and is not changing anything. This is a replication of an experiment.
Cardiac muscles are striated.<span />
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Answer:
<em>The correct option is A) recasting</em>
Explanation:
Recasting can be described as a method for teaching a language in which the instructor corrects the learner by repeating the error back in a corrected format. In this way, the learner recognizes where he made a mistake and tends to understand it.
Parents often use the technique of recasting to teach their children new complex words or to correct them if they speak any wrong word.
