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What is multifactorial polygenic threshold theory?
Multifactorial polygenic threshold theory proposes that complex traits are influenced by both genetic and environmental factors. It suggests that multiple genes contribute to the expression of a trait, and a certain threshold of genetic and environmental factors must be reached to manifest the phenotype. This theory is often used to explain the inheritance of complex traits such as height, intelligence, and susceptibility to diseases.
What is the condition called when there are many genes that affect a trait which are susceptible to changes due to the environmental factors?
This condition is known as polygenic inheritance. It involves multiple genes contributing to a trait, and the expression of these genes can be influenced by environmental factors. The combination of genetic and environmental influences leads to a wide range of variation in the trait.
Is cleft lip a chromosomal error or a multifactorial trait?
Cleft lip is considered a multifactorial trait, meaning it is caused by a combination of genetic and environmental factors rather than a chromosomal error. It can be influenced by both genetic predispositions and exposure to certain environmental factors during pregnancy.
What is a trait or genetic disorder caused by Polygenic inheritance?
A polygenic trait is a trait which multiple genes affect. An example would be skin color, the combined affects of several genes determine your base pigment shade. Polygenic traits are caused by a combination of genes.
Which condition follows a multifactorial pattern of inheritence?
Congenital heart defects, cleft lip and palate, and Type 2 diabetes are examples of conditions that follow a multifactorial pattern of inheritance. This means they result from a combination of genetic and environmental factors interacting together.
What is meant by the statement that The genetic issue in addiction appears to be polygenic and multifacorial?
It means there is no single "addiction gene" you inherit, but rather a whole system and several genetic and hereditary factors that can make you prone to addictive behaviors.
What is multifactorial polygenic threshold theory?
Multifactorial polygenic threshold theory proposes that complex traits are influenced by both genetic and environmental factors. It suggests that multiple genes contribute to the expression of a trait, and a certain threshold of genetic and environmental factors must be reached to manifest the phenotype. This theory is often used to explain the inheritance of complex traits such as height, intelligence, and susceptibility to diseases.
What is the condition called when there are many genes that affect a trait which are susceptible to changes due to the environmental factors?
This condition is known as polygenic inheritance. It involves multiple genes contributing to a trait, and the expression of these genes can be influenced by environmental factors. The combination of genetic and environmental influences leads to a wide range of variation in the trait.
What is multifactorial transmission?
This occurs when environmental factors interact with genetic factors to produce traits. The term multifactorial means many factors. Traits that involve multiple genes and complicated patterns of inheritance are said to be exhibiting multifactorial transmission.
Is cleft lip a chromosomal error or a multifactorial trait?
Cleft lip is considered a multifactorial trait, meaning it is caused by a combination of genetic and environmental factors rather than a chromosomal error. It can be influenced by both genetic predispositions and exposure to certain environmental factors during pregnancy.
What is a trait or genetic disorder caused by Polygenic inheritance?
A polygenic trait is a trait which multiple genes affect. An example would be skin color, the combined affects of several genes determine your base pigment shade. Polygenic traits are caused by a combination of genes.
Which condition follows a multifactorial pattern of inheritence?
Congenital heart defects, cleft lip and palate, and Type 2 diabetes are examples of conditions that follow a multifactorial pattern of inheritance. This means they result from a combination of genetic and environmental factors interacting together.
What do Multifactoral Disorders usually result from?
Multifactorial disorders usually result from a combination of genetic and environmental factors. These disorders are influenced by both genetic variations and external factors such as lifestyle choices, diet, exposure to toxins, and stress. The interplay of these factors contributes to the development of multifactorial disorders like heart disease, diabetes, and certain types of cancer.
What is a trait said to be when several genes influence it?
A trait influenced by multiple genes is called polygenic. These traits often exhibit a continuous range of variation due to the combined effects of multiple genetic factors. Examples include height, skin color, and intelligence.
Alcohol addiction carries a strong genetic component?
Does alcohol addiction carry a strong genetic component? * It is possible. Several studies have pointed out that alcoholism is more likely in someone who has family members that are alcoholics.
What causes moyamoya disease?
The cause of moyamoya disease is unknown. Possible explanations for the disorder include injuries to the brain, infection, multifactorial inheritance, genetic factors, or other causes
How many genetic disorders are there?
There are thousands of known genetic disorders, estimated to be around 6,000-8,000. These disorders can range from single-gene mutations, to chromosomal abnormalities, to multifactorial disorders influenced by both genetic and environmental factors. Many genetic disorders are rare, affecting less than 1 in 2,000 individuals.
