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Multiple Choice
What molecule was likely the first genetic/coding material? Why?
A
Protein
B
RNA
C
DNA
D
Carbohydrates
Verified step by step guidance
1
Understand the role of genetic material: Genetic material is responsible for storing and transmitting genetic information necessary for the development and functioning of living organisms.
Consider the properties of RNA: RNA is capable of both storing genetic information and catalyzing chemical reactions, which makes it a versatile molecule.
Explore the concept of the RNA world hypothesis: This hypothesis suggests that RNA was the first genetic material because it can act as both a genetic material and a catalyst, unlike DNA and proteins.
Compare RNA with DNA and proteins: DNA is more stable but lacks catalytic activity, while proteins are excellent catalysts but cannot store genetic information. RNA can perform both functions, making it a likely candidate for the first genetic material.
Evaluate the evidence supporting RNA as the first genetic material: Consider the presence of ribozymes (RNA molecules with enzymatic activity) and the ability of RNA to self-replicate, which supports the idea that RNA could have been the first genetic material.