These are known as atoms. There are also particles, which are even smaller, but atoms are what matter is composed of.
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The answer is 2.
The genetic code is read of 2 nucleotides which mean that 2 nucleotides are responsible for producing one amino acid.
The removal of one amino acid from a protein doesn't alter the sequence of the remaining amino acids and this can be repaired or don't affect the whole sequence of the amino acids in the protein molecule.
The removal of only one codon alters the whole sequence of the nitrogenous bases and the whole arrangement of the amino acids giving another type of protein and affects its structure.
Fleming discover a mold as Penicillin<span>, isolated an extract of the unknown agent, and named it penicillin. Then later Florey tested the penicillin on mice and realized it would be as effectively on humans as well.
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The answer is Taxonomist. Taxonomist is a biologist or a scientist who groups organisms into categories. For example a plant taxonomist may study the origins and relationships between different types of roses while an insect taxonomist may focus on the relationship between different types of insects. Taxonomy is the science of defining and naming groups of biological organisms on the basis of shared characteristics.
Valence electrons can be found by determining the electronic configurations of elements. Thereafter the number of electrons in the outermost shell gives the total number of valence electrons in that element.