You are trying to determine the cause of Albinism in Gorillas. You begin by isolating the gene for skin pigment in an normal gorilla (sample 1) and in an albino gorilla (sample 2). You compare them to see what is different. Sample 1: ATTACAGTACTGGCA Sample 2: ATTACAATACTGGGCA Looking at the sequences carefully you determine it is a mutation.
A. Deletion
B. Inversion
C. Insertion
D. Substitution

D. substitution, the 7th nucleotide was turned from a G to an A. However, there seems to be an extra G in the end as well. That would be insertion

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.