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    Genes can certainly code for more than one protein, but they're not so flexible in their ability that they could code for a whole biochemical pathway!
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    (Original post by Hype en Ecosse)
    Genes can certainly code for more than one protein, but they're not so flexible in their ability that they could code for a whole biochemical pathway!

    Thanks, any chance you could help with the new question...I've edited the thread.
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    (Original post by StudyingHelp)
    Thanks, any chance you could help with the new question...I've edited the thread.
    Your question came off as completely nonsensical to me, but this is how I understand it:

    A gene can either code for a functional or non-functional protein, or any gradation of function in between. Genes becoming mutated don't immediately render them non-functional. There are silent mutations - mutations where changing the base sequence doesn't change the amino acid sequence, or replaces the amino acid with another one that still allows the resulting protein to be functional. You can also have changes in a single base that totally destroy the function of an allele. It just depends.

    You can't generalise the effects that a mutation will have since it depends on precisely what kind of mutation that you have, where it occurs, and over what extent it occurs. It's possible to have two mutated alleles that are still functional; it's also possible to have only one mutated allele rendering the pathway non-functional. Genetics isn't generalisable.
 
 
 
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