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What are the evidence regarding the contribution of genes to schizophrenia?
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What gene is the schizophrenia disease located on?
There is no one gene for schizophrenia. However, there are many different genes that may contribute to schizophrenia. A gene on chromosome 1 in the 22 family is implicated in schizophrenia, as well as genes on chromosomes 11 and 6.
Is schizophrenia communicable or non-communicable?
No it is not its passed in genes
Is schizophrenia autosomal recessive or dominant?
Schizophrenia is only partially genetic, and therefore is neither recessive nor dominant.
Is schizophrenia preventable?
No it is not preventable it automaticaly runs in your genes there is nothing to prevent it espically if you have family members with it.No it is not preventable it automaticaly runs in your genes there is nothing to prevent it espically if you have family members with it.Autism IS preventable. There are several studies and evidence that suggest that this disorder is not simply genetic.
Is schizophrenia determined by genetics?
Not completely. Research has indicated that while many people carry genes associated with a high possibility of manifesting schizophrenia symptoms, many people never develop any noticeable signs of the illness. Among those who do show signs do so in varying degrees- in other words, some cases are very serious, and others are less disruptive to the person. Some research has indicated that a stable, low-stress life can prevent these genes from activating or "switching on". Other research has shown that stress and traumatic experiences can trigger schizophrenia symptoms at higher rates. There is much evidence for the "environmental" theories about schizophrenia- that something outside the person can influence the genes, essentially "switching them on". Stressful experience such as abuse during childhood, traumatic events such as car accidents, drug use (particularly psychotropic, hallucinogenic, or stimulant drugs) can trigger schizophrenia symptoms to be "expressed".
What does research comparing the rates of schizophrenia in monochorionic twins and dichorionic twins suggest?
Concordance rates that suggested a role of genes in schizophrenia might more accurately be interpreted as a reflection of the influence of shared prenatal experience.
Are similar genes evidence of common ancestory?
If organisms have similar genes, then they are closely related.
What was the cro- magnon main contribution to society?
Their genes. Cro-Magnon evolved into modern Europeans.
What is the most reliable evidence that two individuals belong to the same species?
their genes
Can in vitro fertilization be used as a method to ensure that your child won't develop schizophrenia?
The short answer is "no". The long answer: While schizophrenia has a significant genetic component, there are other factors which are involved in the development of schizophrenia in later life, including brain injury due to lack of oxygen at birth, certain infections ocurring while in the womb, traumatic and stressful events over the course of life, and use of certain drugs, especially during adolescence. Furthermore, the genetic basis for schizophrenia is complex, and so far, not well understood. There are multible genes, mutations in which are known to be related to an increased risk of developing schizophrenia later, and likely, there are other, so far unknown genes which may contribute to this risk. The way in which the products of these genes interact with one another, and the effect the environment has on the expression of these genes is not fully understood. So even if it was possible (which theoretically, it is) to screen an embryo for specific genetic abnormalities linked with schizophrenia (for example, if a parent had a known mutation linked with schizophrenia), it would be impossible to be sure that no other genetic risks had been passed down, making the risks of such a procedure outweigh the potential benefits. At least until the genetic basis of schizophrenia is more fully understood. Even if we had a 100% understanding of the genetic basis of schizophrneia, embryo selection would not provide protection against the other (non-genetic) risk factors mentioned above, though it may reduce the likelyhood that exposure to these would produce schizophrenia. Hope this answers your question.
What evidence is there that more than one pair of genes affect eyes color?
both of the genes get mixed up together to make eye color
What was lamarck's incorrect hypothesis regarding inheritance?
Lamarck's incorrect hypothesis regarding inheritance.... Lamarck did not know how traits were inherited (Traits are passed through genes) Genes are not changed by activities in life. They change through mutation occurs before an organism is born.
