glaucoma is a leading cause of blindness. studies have linked a common form of glaucoma to three genes and…

glaucoma is a leading cause of blindness. studies have linked a common form of glaucoma to three genes and more than 20 genetic loci. which best describes glaucoma?\n a recessive trait that requires multiple recessive alleles to be expressed\n a polygenic trait that is influenced by the alleles of several genes\n a codominant trait that is expressed more often when more dominant alleles are present\n a dominant trait that depends on the presence of only one of many dominant alleles

glaucoma is a leading cause of blindness. studies have linked a common form of glaucoma to three genes and more than 20 genetic loci. which best describes glaucoma?\n a recessive trait that requires multiple recessive alleles to be expressed\n a polygenic trait that is influenced by the alleles of several genes\n a codominant trait that is expressed more often when more dominant alleles are present\n a dominant trait that depends on the presence of only one of many dominant alleles

Answer

Answer:

B. a polygenic trait that is influenced by the alleles of several genes

Brief Explanations:

The problem describes glaucoma as being linked to three genes and more than 20 genetic loci. A polygenic trait is one that is influenced by multiple genes (alleles of several genes). Option A is incorrect as there is no indication of recessive alleles being required. Option C is wrong as codominance is not relevant here. Option D is incorrect as it's not a single - dominant - allele - dependent trait. Polygenic (multiple - gene influence) best fits the description of glaucoma given.