The answer is
Carbon because your dealing with coal
The answer is D. Phosphorus and nitrogen
The three main elements are C, H and O. These two are elements other macro-molecules may not have
Hmm not sure but I would give a explanation..
Used in biology to figure out the genes that may be transferred from parent to child. Although this square doesn't determine the exact genes, it helps predict the chance of the child having particular genes.
It would read as GATACA. This is not the correct sequence and code, so an incorrect protein is made. It is a change in DNA when a is copied. This could happen under ultra-violet rays and other environmental factors.
