How are the nucleotides for mrna different than the ones for dna?

The DNA stands for deoxyribonucleic acid and mRNA stands for messenger ribonucleic acid. The pyrimidine base of DNA is thymine while the mRNA base is uracil. DNA is present inside the nucleus of the cell while mRNA exists in the cytoplasm after the diffusion process. It is double helix strand while the mRNA is single-stranded structure. DNA contains the information of protein-encoding while the mRNA contains the information of cell enabling the synthesis of protein.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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