The genetic material must possess the property of stability to ensure:
Accurate DNA replication
Genetic variation
Mutations
Gene expression
The stability of genetic material is vital for accurate DNA replication. It ensures the integrity of the genetic information during replication, preventing errors or damage. Stable genetic material allows for the faithful transmission of genetic information across generations. Unstable genetic material can lead to mutations and genetic disorders. By maintaining stability, DNA replication proceeds with high fidelity, minimizing errors and preserving the genetic code. Genetic variation, mutations, and gene expression are separate processes and not directly dependent on stability. They can arise from specific mechanisms like recombination and mutagenesis and are regulated by factors controlling transcription and translation. Therefore, option 1 is the correct answer.