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Reika [66]
3 years ago
11

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?
A.a recessive trait that requires multiple recessive alleles to be expressed


B.a polygenic trait that is influenced by the number of alleles present


C.a codominant trait that is expressed more often when more dominant alleles are present


D.a dominant trait that depends on the presence of only one of many dominant allele
Biology
2 answers:
swat323 years ago
7 0

The correct answer is option b, that is, a polygenic trait that is affected by the number of alleles present.

There are three genes associated with a usual form of glaucoma, so it must be the polygenic trait, that is, it comprises more than one gene. The polygenic traits are affected by the number of alleles. In this circumstance, there are more than twenty genetic loci present, which signify that there must be a larger quantity of alleles for all the loci.


Anni [7]3 years ago
3 0

Glaucoma is a leading cause of blindness. Studies have linked a common form of glaucoma to three genes and more than 20 genetic loci. Glaucoma is best described by the polygenic trait that is influenced by the number of alleles present.

Further Explanation:

Glaucoma is a very complex disease in which the damage to the optic nerve occurs. This condition causes loss in vision. The very widespread kind of glaucoma is primary open-angle glaucoma. It has no direct symptoms or signs or symptoms but gradually can cause loss in vision.

Alleles are defined as the different type of the same gene. DNA is composed of different nucleotides and consists of genetic information in the form of genes. Alleles can influence the function of the gene as they determine particular character such as skin color and eye color that can be inherited from parents to the offspring through sexual reproduction.  

There are mainly three types of genes that are mainly associated with a standard form of glaucoma. So, it should be related to the polygenic trait, and that is, it comprises more than one gene. The polygenic traits are affected by the number of alleles. In this circumstance, there are more than twenty genetic loci present, which signify that there must be a larger quantity of alleles for all the loci.

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<u> </u>

Answer Details:

Grade: High School  

Subject: Biology

Topic: Glaucoma disease

Keywords:

Gene, polygenic trait, loci, sexual reproduction, allele, color eye, skin color, genetic reproduction, glaucoma, DNA, genetic information, genetic loci.

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