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Multiple Choice
Generally speaking, how many genetic codes are there?
A
20
B
Four
C
One for each organism
D
One
Verified step by step guidance
1
Understand that the genetic code refers to the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins by living cells.
Recognize that the genetic code is universal, meaning it is the same across almost all organisms, from bacteria to humans.
Note that the genetic code consists of 64 codons, which are sequences of three nucleotides. Each codon specifies a particular amino acid or a stop signal during protein synthesis.
Realize that although there are 64 codons, there are only 20 amino acids, which means that multiple codons can code for the same amino acid. This is known as the redundancy of the genetic code.
Conclude that despite the diversity of life, the genetic code is essentially the same for all organisms, which is why the correct answer is 'One'.