Sunday, February 7, 2010

Codons are each made up of three bases that code for one of 20 amino acids. True or False?

True.





Codons are like little ';blueprints.'; They are made up of three sequential RNA bases, like GCU or GCC. Each codon codes for a specific amino acid. There are some overlap between codons, because there are 64 possible codons (made from mixing the four RNA bases in all possible combinations) but only 20 amino acids, so some codons actually mean the same thing. GCU and GCC, for example, actually represent the same amino acid Alanine, even though they're different codons. By reading a codon a cell can figure out which amino acids to put together, in what order, to make a protein.





There are lots of charts out there that help you find out which codons represent which amino acids. Here's a link to one: http://www.indianastandardsresources.org鈥?/a>





Hope this is useful.Codons are each made up of three bases that code for one of 20 amino acids. True or False?
True.





Nirenberg, Marshall Warren (1927鈥撯€? US biochemist who found the key to the genetic code by deciphering different combinations of three nucleotide bases (called 鈥榗odons鈥? within long nucleotide chains in DNA and RNA. He shared the 1968 Nobel Prize in physiology or medicine.





.Codons are each made up of three bases that code for one of 20 amino acids. True or False?
TRUE





But it should be noted that more than one codon squence can code for a specific amino acid (:
True.

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