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PKU is a genetic disorder that, when untreated, is characterized by mental ... but, in a person with PKU, this enzyme is defective.

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What are the dominate alleles?

Dominant allele disorders are single gene disorders which take effect in the heterozygous state.


Scientist test for alleles that cause human genetic disorders by?

There are many tests for alleles that cause human genetic disorders. These tests are usually taken by blood or other bodily samples.


Scientist test for alleles that cause genetic disorders by?

using DNA probes


How do scientists test alleles that causes human genetic disorders?

Scientist may tesh for genetic disorders using FISH or DNA profiling.


What autosomal disorders in humans are controlled by dominant alleles?

Some autosomal disorders in humans that are controlled by dominant alleles include Huntington's disease, Marfan syndrome, and neurofibromatosis type 1. These disorders are expressed when an individual inherits a single copy of the mutated gene from one parent.


What are inactive alleles?

Inactive alleles are versions of a gene that do not produce a functional protein or have reduced activity due to mutations. These alleles may not contribute to the individual's phenotype or may have a diminished effect compared to active alleles. Inactive alleles can result in genetic disorders or variations in traits.


What evidence is there that the long and round alleles did not become blended?

A number of genetic disorders are caused when an individual inherits two recessive alleles for a single-gene trait. Recessive genetic disorders include Albinism, Cystic Fibrosis, Galactosemia, Phenylketonuria (PKU), and Tay-Sachs Disease. Other disorders are also due to recessive alleles, but because the gene locus is located on the X chromosome, so that males have only one copy (that is, they are hemizygous), they are more frequent in males than in females.


Genetic disorders are caused by?

Genetic disorders are caused by abnormalities in an individual's DNA, either through mutations or changes in the genes. These abnormalities can be inherited from parents or can occur spontaneously during a person's lifetime. Genetic disorders can affect various aspects of health and development.


What is Mendel's Theory?

Gregor Mendel was a biologist who studied the inheritance of traits. His laws for this inheritance are combined in Mendelian inheritance, which states that some alleles are dominant and as such some traits are dominant.


What evidence is there that the long and round did not become blended?

A number of genetic disorders are caused when an individual inherits two recessive alleles for a single-gene trait. Recessive genetic disorders include Albinism, Cystic Fibrosis, Galactosemia, Phenylketonuria (PKU), and Tay-Sachs Disease. Other disorders are also due to recessive alleles, but because the gene locus is located on the X chromosome, so that males have only one copy (that is, they are hemizygous), they are more frequent in males than in females.


What are monohybrid and dihybrid crooses?

Monohybrid cross involves studying one trait (e.g. flower color), whereas dihybrid cross involves studying two traits (e.g. flower color and plant height). In monohybrid crosses, one gene with two alleles is examined, while in dihybrid crosses, two genes with two alleles each are examined.


What evidence is there that the long round allels did not become blended?

A number of genetic disorders are caused when an individual inherits two recessive alleles for a single-gene trait. Recessive genetic disorders include Albinism, Cystic Fibrosis, Galactosemia, Phenylketonuria (PKU), and Tay-Sachs Disease. Other disorders are also due to recessive alleles, but because the gene locus is located on the X chromosome, so that males have only one copy (that is, they are hemizygous), they are more frequent in males than in females.