Highly conserved genes are important for normal function of the organism of every species from prokaryotes to eukaryotes. So such genes do not mutate easily and are highly preserved.
https://socratic.org/questions/what-does-it-mean-for-a-gene-to-be-highly-conserved
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~xox Melis
Until recently, prokaryotes did not contain linear plasmids or chromosomes, but they have since been discovered in spirochaetes, Gram-positive bacteria, and Gram-negative bacteria. Bacterial linear DNA has been classified into two structural kinds. Each end of linear plasmids from the spirochaete Borrelia has a covalently closed hairpin loop, while each end of linear plasmids from the Gram-positive filamentous Streptomyces has a covalently connected protein. In eukaryotic cells, replicons with comparable structures are more common than in prokaryotes. However, linear genomic architectures are likely more widespread in bacteria than previously thought, and some replicons may be able to switch between circular and linear isomers. The molecular biology of these widely scattered pieces reveals information about the origins of linear DNA in bacteria, including evidence of prokaryote-eukaryotes genetic exchange.
Option B)
They prevent most of the Sun's rays from reaching Earth, thereby preventing Earth from heating up
Answer:
3) Condensación del agua en la naturaleza
El vapor de agua sólo se condensará en otra superficie cuando ésta sea más fría que la temperatura del vapor de agua, o cuando el equilibrio de vapor de agua en el aire, es decir, la humedad de saturación, se haya excedido.
Explanation:
