Polygenic inheritance result in a continuum of phenotypes because the genes that are involved can be considered to be co-dominant traits that fall into discrete categories are called continuous traits false.
<h3>What is Polygenic Inheritance?</h3>
A single inherited phenotypic trait that is governed by two or more separate genes is referred to as polygenic inheritance, often referred to as quantitative inheritance.
In a system that is distinct from Mendelian Genetics, wherein monogenic features are determined by the various alleles of a single gene, polygenetic traits may exhibit a variety of potential phenotypes, determined by a number of different genes and the interactions between them.
In contrast to Mendelian genetics, when one allele completely dominates or hides another, features generated by polygenic inheritance are not only the result of dominance and recessively. Instead, polygenic features show incomplete dominance, resulting in a combination of the phenotypes seen in the parents in the offspring.
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Answer:
-A single gene can influence multiple traits.
-A single trait can be controlled by multiple genes.
Explanation:
1. A single gene influences two or more phenotypic traits known as a pleiotropic gene. Pleiotropy is common in the genetics of complex disease.
Example: Phenylketonuria
It is an inherited disorder in which the level of phenylalanine is increased in the human body. This is happening because of the defect in a single gene on chromosome 12 that codes for phenylalanine hydroxylase (enzyme). This enzyme affects multiple system e.g., nervous and integumentary systems.
2. A polygenic trait is one whose phenotype is influenced by more than one gene. Polygenic traits are also controlled by environmental factors.
Example: Height, Skin color
These traits show continuous distribution because they are also controlled by many different genes. Epigenetics and environmental factors are also involves.
Mandalian (inherited) traits are controlled by different genes.
Answer:
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Explanation:
Answer:
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Explanation:
