Its 18 electron
1st orbital : maximum = 2 electrons
2nd orbital : maximum = 8 electrons
3rd orbital : maximum = 8 electrons
2+8+8 = 18 electrons
<span>Here are the choices: </span>
(a) deletion(b) inversion (c) duplication(d) insertion
Answer: (d) insertion
This mutation occurs when (an) additional nucleotide base pair/s attach themselves into an existing DNA strand. This can possibly result to diseases such as cystic fibrosis and myotonic dystrophy.
Hyaluronic acid, <span>also called </span>hyaluronan.