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If you mean an allele, then I know that the attached/hanging earlobe, the ability to taste ptc paper, dimples, chin fissures, freckles, human blood type A,B,O,AB without the rh factor is controlled by a single allele, there are three genes in this allele but only a pair is present in a human. Example A gene and B gene = AB blood. The RH factor may be another trait controlled by a single alele but I am not sure.
What else can I help you with?
What traits in the human body are controlled by a gene?
Traits controlled by a single gene areAbility to roll the tongueFree ear lobeHitchhikers ThumbBent little fingerWidow's PeakDimpled ChinMid-Digital HairPigmented irises
Are single gene traits rare?
Single gene traits are relatively rare in complex organisms, as most traits are influenced by multiple genes and environmental factors. While some traits, like certain inherited disorders, can be attributed to a single gene, these are exceptions rather than the rule. In populations, polygenic traits, which involve the interaction of multiple genes, are far more common. Thus, while single gene traits exist, they are not the predominant type of genetic trait observed in most species.
Most common modification in gene structure in the human genome?
Single nucleotide polymorphisms (SNPs) are the most common modification in the human genome. These are variations at a single DNA base pair that occur in at least 1% of the population. SNPs can impact gene function and contribute to traits and diseases.
What is one difference between single gene trait and a polygenic trait?
Polygenic traits result in more variation because so many more alleles are involved in the process of reproduction.
How many genes are needed to represent a trait?
It depends on the trait. Some traits exhibit simple Mendelian heredity, being governed by only one gene. However, many traits are governed by more than one gene, which is called polygenic inheritance.
What is the difference between single-gene traits and complex traits?
Single gene diseases only effect one typeof gene where im a complex genetic disease many genes are effected. An example of a single gene diseas is sickle cell anemia. Cancer would be an eexample of a complex gene disease.
What traits in the human body are controlled by a gene?
Traits controlled by a single gene areAbility to roll the tongueFree ear lobeHitchhikers ThumbBent little fingerWidow's PeakDimpled ChinMid-Digital HairPigmented irises
Which of the following are true. 1.single gene can control a single trait 2.single gene can influence multiple traits 3.single trait can be controlled by multiple genes?
A single gene can influence multiple traits A single trait can be controlled by multiple genes
Are single gene traits rare?
Single gene traits are relatively rare in complex organisms, as most traits are influenced by multiple genes and environmental factors. While some traits, like certain inherited disorders, can be attributed to a single gene, these are exceptions rather than the rule. In populations, polygenic traits, which involve the interaction of multiple genes, are far more common. Thus, while single gene traits exist, they are not the predominant type of genetic trait observed in most species.
How are single-gene traits useful in studying human genetics?
It's useful because you can find out if a trait is dominate or recessive easily. If a trait requires multi genes, its much harder to find out if that trait is recessive or dominate, and also if there are other inhibitors that may effect the gene as well.
Much of what we know about single gene traits in humans is the result of studying?
Mendelian inheritance patterns in families and populations. By analyzing family pedigrees, researchers can track the transmission of specific traits from one generation to the next, helping to identify the genetic basis of various human phenotypes. Additionally, population studies and genome-wide association studies have further advanced our understanding of single gene traits in humans by identifying specific genetic variants associated with certain traits or diseases.
Most common modification in gene structure in the human genome?
Single nucleotide polymorphisms (SNPs) are the most common modification in the human genome. These are variations at a single DNA base pair that occur in at least 1% of the population. SNPs can impact gene function and contribute to traits and diseases.
What is one difference between single gene trait and a polygenic trait?
Polygenic traits result in more variation because so many more alleles are involved in the process of reproduction.
Can a single gene can influence multiple traits?
Yes, a single gene can influence multiple traits through a concept called pleiotropy. This occurs when a gene has different effects on multiple phenotypic traits. An example of this is the gene responsible for sickle cell anemia, which can affect not only red blood cell shape but also resistance to malaria.
What three ways are human traits controlled?
Human traits are controlled by a combination of genetic factors (inherited from parents), environmental factors (such as diet and lifestyle), and epigenetic factors (changes in gene expression without changes in the underlying DNA sequence). These factors interact in complex ways to influence the development and expression of human traits.
How many genes are needed to represent a trait?
It depends on the trait. Some traits exhibit simple Mendelian heredity, being governed by only one gene. However, many traits are governed by more than one gene, which is called polygenic inheritance.
Can a single gene control a single trait?
It was once believed that one gene controls one trait, so it is possible. Currently, the belief is that one gene can interact with other genes to control a trait, and that one gene can control more than one trait.
