Answer
Option E
Explanation
Nucleotide sequence in 3s code for amino acids which further form peptide, polypeptide, and protein. But not all these nitrogenous bases actually code for protein, some of them are non-protein coding sequence (called introns) which are of course removed to make the mRNA shorter than the gene.
For an atom to become a positively charged ion it must lose negatively charged electrons.
The answer to number 3 is d.
Biogeochemical cycles main purpose is to recycle matter through the biosphere.
