The symbol Al+3 is a cation. Therefore giving us the correct answer being option B. cation.
Hope this helps! :)
The answer to this question is separated
In DNA, there is a code for the sequence
of three bases for the placement of certain amino acid in a protein chain.<span> The amino acid chain that can be produced by
the DNA base sequence of C-A-A-G-T-T-A-A-A-T-T-A-T-T-G-T-G-A would be based on
the DNA code CAA is valine, GTT is glutamine, AAA is phenylalanine, TTA is asparagine,
TTG is asparagine and TGA is threonine. </span>
I believe the term for two similar chromosomes would be homologous chromosomes.
In this case the objects must be touching