An adult with a history of tanning has his genome sequenced. The beginning of a protein-coding region of his DNA reads ATATATGGCAT. If the protein-coding region of a healthy adult reads ATATATGAGCAT, identify the site and type of mutation.

Explanation:

The protein-coding region of a healthy adult reads ATATATGAGCAT.

The beginning of a protein-coding region of the tanning individual DNA reads ATATATGGCAT

The site of mutation is close to the end - GGCA - between the two G's, a base (A) has been deleted.

Thus this type of mutation is termed deletion: a process whereby one or more bases are removed from a nucleotide sequence of DNA.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.