Asked by Caitlin Wright on May 26, 2024
Verified
Before DNA, ____ likely served as the genetic material.
A) carbohydrate
B) lipid
C) protein
D) RNA
E) free nucleotides
Genetic Material
The biological macromolecules or substances in cells that carry genetic information, typically DNA or RNA, essential for inheritance and controlling cell function.
RNA
Ribonucleic acid, a molecule essential for coding, decoding, regulation, and expression of genes, playing a critical role in protein synthesis and other cellular processes.
- Understand the function of RNA within the initial genetic processes.
Verified Answer
AH
ASHLEY HODGEMay 29, 2024
Final Answer :
D
Explanation :
RNA is believed to have served as the genetic material before DNA due to its ability to store genetic information, catalyze chemical reactions (like a protein), and self-replicate, which are essential characteristics for early forms of life. This hypothesis is supported by the RNA world theory.
Learning Objectives
- Understand the function of RNA within the initial genetic processes.