A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced. ... These are called silent mutations.
an allele is a form ofa gene
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Flowering tops
Most of the resin is in the flowering tops.
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A and be are the smart because they prove that water is bwtter in the presipitation
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