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exis [7]
4 years ago
9

Define polygenic and pleiotropic traits and explain their significance for researchers’ efforts to link human genotypes to pheno

types.
Biology
2 answers:
denis-greek [22]4 years ago
7 0
Polygenic traits are those traits that are controlled by more than one gene (poly- means many). The examples for polygenic traits are eyes colour, hair colour, human height, etc. 
Pleiotropic traits are those traits that are controlled by one gene. For instance, if one gene controls two different traits, then those traits are pleiotropic traits. The example is gene for phenylketonuria and sickle-cell anemia.
Knowing and understanding how different traits are controlled (by one or by many genes) is important for <span>linking human genotypes to phenotypes.</span>
abruzzese [7]4 years ago
6 0

Polygenic traits are constrained by at least two than two qualities at various loci on various chromosomes. Pleiotropy happens when one quality will code and control the phenotype. seeing how various attributes are controlled (by one or by numerous qualities) is significant for connecting human genotypes to phenotypes.  

Further Explanation:  

About Polygenic traits:

In people, tallness, skin shading, and weight are controlled by numerous qualities that are communicated together. Polygenes permit a wide scope of physical attributes.  

polygenic issue mean:  

A hereditary issue that is brought about by the consolidated activity of more than one quality. Since such issue rely upon the synchronous nearness of a few qualities, they are not acquired as essentially as are single-quality ailments.  

About pleiotropy traits:  

Pleiotropy is regularly an awful thing, the same number of infections are because of a quality controlling such a large number of characteristics without a moment's delay. For instance, phenylketonuria is a malady brought about by pleiotropy.  

pleiotropic impacts:  

Pleiotropic Producing or having various impacts from a solitary quality. For instance, the Marfan quality is pleiotropic, conceivably causing such differing impacts as long fingers and toes (arachnodactyly), separation of the focal point of the eye, and analyzing aneurysm of the aorta.

Subject: biology

Level: High School

Keywords: About Polygenic traits, polygenic issue mean, About pleiotropy traits, pleiotropic impacts  

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