Natural selection is the correct answer
The genetic code is redundant. The meaning of this statement is that (D) More than one codon can specify the addition of the same amino acid.
Genetic code is a set of three nucleotides (mRNAs) that code for an amino acid together. The concept of given by Francis Crick. These codes are standard in majority of the organisms on Earth, hence the code is universal. For example, UGG codes for tryptophan.
Amino acids are the molecules that are involved in the formation of proteins. They have an amino group as well as a carboxylic group attached to the same alpha-carbon. There are 22 amino acids in the body that are involved in protein synthesis.
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Answer:
Prokaryotic cells have a cell wall, Eukaryotic cells do not. Eukaryotic cells are much larger an are in fact more complex then Prokaryotic cells. Eukaryotic cells have a true nucleus bound by a doubled membrane. Prokaryotic cells have no nucleus.
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