The RNA world hypothesis proposes that RNA, not DNA, was the primary genetic material in early life. Which characteristic of RNA makes it a more plausible candidate for this role compared to DNA?
Double-stranded structure
Higher stability
Catalytic activity
Presence of thymine
Related Questions
Which of the following molecules falls under the category of eobionts?
I. Coacervates II. Microspheres
I only
II only
Both I and II
Neither I nor II
Which of the following best describes the significance of coacervates in the context of the origin of life?
They are fossilized evidence of the earliest life forms on Earth.
They prove that RNA was the primary genetic material in early life.
They demonstrate how membrane-bound compartments, crucial for cellular life, could have arisen spontaneously from organic molecules.
They explain the mechanism by which the first self-replicating molecules were formed.
Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?
They could maintain an internal environment different from their surroundings
They were able to grow in size by taking up material from the surroundings
They showed budding or splitting to give rise to similar smaller structures
They had a defined, organized, and heritable mechanism of reproduction
Coacervates were experimentally produced by
Sydney Fox
Oparin and Haldane
Miller and Urey
Spallanzani and Needham
Coacervates belong to category of
Cyanobacteria
Protozoans
Molecular aggregates
Molecular aggregate surrounded by lipid membrane
Coacervates are
Protobionts having polysaccharide, protein and
Protein aggregate
Protein and lipid aggregates
None of the above
What is the significance of coacervates in the origin of life?
They are the first true cells
They demonstrate the potential for membrane-bound structures to form spontaneously
They are self-replicating molecules
They prove that life originated in the ocean
