Recall that a period is horizontal, and a group is vertical.
So if cobalt is moving "down" a period, it would be most logical to say that it would be Ni, or nickel. It could also be Copper, Zinc, Gallium, and so on. Make sense?
Answer:
because of the tales his grandfather told, or the dna test was inaccurate
Explanation:
The mRNA would look identical this one except that instead of T's you would see U's:
DNA 5'-AGCTCGATCGA-3'
RNA 5'-AGCUCGAUCGA-3'
<span>it would change the sequence of DNA nucleotides in affected cells</span>