Homework Help: biology

Posted by stacey on Monday, December 31, 2007 at 10:46pm.

DNA codes for mRNA, which is then translated into polypeptides,which are strands of amino acids. The DNA sequence below codes for the following amino acids: methionine-valine-glycine-alanine-alanine-serine
TAC CAA CCA CGC CGC UCA
What effect would the addition of the nucleotides adenine-cytosine-tgymine nucleotide after the fist nucleotide in the above sequence have on the amino acid sequence? what effect would the deletion of the eighth nucleotide(cytosine) have on the polypeptide produced? what effect would changing the sixth nucleotide from an adenine to a thymine? please can anyone help me answer any of these questions?

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