Do recessive and dominant allele rules follow Mendelian laws?

yes they do

Explanation:

which p.osess one dominant and one rece.ssive allele, can receive each allele from either parent and will look iden.tical to homo.zygous dom.inant individuals; the Law of Segreg.ation supports Mendel's observed 3:1 phenot.ypic ratio

so yea

Explanation:

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.