Multiple Choice
Which of the following methods were used to decipher the genetic code?
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15. Gene Expression
Genetic Code
Multiple Choice
The universality of the genetic code is evidence for which of the following?
A
Common ancestry of all life forms
B
The existence of unique genetic codes in each species
C
The ability of organisms to evolve independently
D
The presence of multiple genetic codes
Verified step by step guidance1
Understand the concept of the genetic code: The genetic code is a set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins by living cells.
Recognize the universality of the genetic code: The genetic code is nearly universal, meaning that most organisms use the same code to translate DNA into proteins. This suggests a common mechanism shared by diverse life forms.
Consider the implications of a universal genetic code: If all life forms use the same genetic code, it implies that they may have originated from a common ancestor, as this shared feature is unlikely to have evolved independently in separate lineages.
Evaluate the options given: The universality of the genetic code supports the idea of a common ancestry of all life forms, rather than unique genetic codes in each species or multiple genetic codes.
Conclude the reasoning: The presence of a universal genetic code is strong evidence for the common ancestry of all life forms, as it indicates a shared evolutionary history.
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