Question

dna contains thymine where rna contains uracil. what are some of the evolutionary advantages for dna having thymine rather than uracil? please select all that apply.

Answer 1

Thymine is a more stable base than uracil, so using it in DNA prevents the molecule from breaking down over time and helps preserve genetic information. Additionally, the presence of thymine helps to provide greater structural stability to the DNA molecule as a whole, making it less susceptible to damage from external environmental factors. Finally, the presence of thymine helps to maintain the structure of the DNA double helix, which in turn promotes accurate and efficient gene replication.