What is a good example of pleiotropy?

One of the most widely cited examples of pleiotropy in humans is phenylketonuria (PKU). This disorder is caused by a deficiency of the enzyme phenylalanine hydroxylase, which is necessary to convert the essential amino acid phenylalanine to tyrosine.

What are 2 examples of polygenic inheritance?

Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect. Examples of human polygenic inheritance are height, skin color, eye color and weight.

What is pleiotropy and include example?

When one single gene starts affecting multiple traits of living organisms, this phenomenon is known as pleiotropy. A mutation in a gene can result in pleiotropy. One example of pleiotropy is Marfan syndrome, a human genetic disorder affecting the connective tissues.

Why phenylketonuria is a good example of pleiotropy?

The common example of pleiotropy is phenylketonuria. Phenylketonuria is an inborn error of metabolism. This is also inherited as the autosomal recessive trait. This single gene can control the various chemical reactions involved in the metabolism of phenylalanine.

Why Is height a good example of polygenic inheritance?

Why is height a good example of polygenic inheritance? because the characters vary in the population in gradients along a continuum.

What is the difference between polygenic inheritance and epistasis?

A gene that employs a minor effect on a phenotype along with other genes is referred to as polygenes. Numerous genes exert an equal effect. The expression of one gene is not masked by the presence of the other genes, i.e., epistasis is not involved. Polygenic inheritance is different from multiple alleles.

What is the difference between Polytechnic inheritance and multiple Allelism?

In case of multiple alleles, the same DNA strand is involved, whereas polygenic inheritance is found on multiple DNA strands. Example of multiple alleles – blood type is present on the very same DNA strand acquired by a code building A type proteins, B type or no proteins.

What is the difference between epistasis and pleiotropy?

The basic difference between epistasis and pleiotropy is that epistasis is the phenomenon in which a gene at one site changes the phenotypic expression of a gene at another location whereas pleiotropy explains the phenomenon in which a single gene affects several phenotypic traits.

What is pleiotropy explain with an example?

In genetics, Pleiotropy is defined as the expression of multiple traits by a single gene. Pleiotropy is derived from a Greek word meaning more ways. A simple example of a Pleiotropy is phenylketonuria is a disease. It is a genetic disorder caused by the low metabolism of the amino acid phenylalanine in the body cells.