micro quiz ch 11 objectives 2,3,4
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What are the three components of DNA?
The three components of DNA are a phsphate, a sugar (the 'deoxyriose' in DNA) and a nucleotide base.
What are the differences between DNA and RNA (three major differences)
- RNA contains the sugar 'ribose' rather than DNA's 'deoxyribose'
- RNA contains the base 'uracil' instead of the base 'thymine' which pairs with adenine. So the RNA base pairs are uracil wth adenine, and cytosine with guanine.
- RNA is usually found in a single-stranded form instead of a double-stranded form like DNA. (However, RNA can fold on itself and form areas that are double-stranded.)
- The process whereby RNA is made from DNA
- Three steps: initiation, elongation, and termination
Translation is the process by which a cell makes proteins by "reading" the information contained in its RNA
Inductions turns on genes that are turned off
Repression turns off genes that are turned on
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