The property of semiconductors that makes them most useful for constructing electronic devices is that their conductivity<span> may easily be modified by introducing </span>impurities<span> into their </span>crystal lattice<span>. The process of adding </span>controlled impurities<span> to a semiconductor is known as </span>doping<span>.</span>
Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families.
An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develope.
Here's the website where I got this from if you want to know more, hope this helps! :)
Source: https://www.nlm.nih.gov/medlineplus/ency/article/002052.htm
Controls what enters and leaves the cell