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gene mapping is locating and identifying genes in a gene map

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gene mapping is locating and identifying genes in a gene map

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Gene mapping is finding genes that affect certain behaviors.

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Gene mapping is the finding of genes that cause certain actions or behaviors.

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Caspi et al (2003) investigated the role of the 5-HTT gene in depression after experiencing stress. The participants were people with the gene and without with the same amount of stress. It was found that more people with mutated gene had depression than normal gene people. Not everyone with the mutated gene had depression so environmental factors had a part in it. They found the gene that was linked to depression when gene mapping but it isn't completely the gene.

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Gene mapping is the finding of genes that affect certain behaviors.

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Caspi investigated the role of the 5-HTT gene in depression after experiencing stress. It was concluded that more people with the mutated gene had depression than people with normal gene, but not everyone with the 5-HTT gene had it. When they used gene mapping, they found that it was linked to depression but was not a cause.

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gene mapping is finding the genes that affect/cause certain behaviors.

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this study investigated if intelligence was inherited. the study tested twins and bio siblings via an IQ test. the findings were that MZ twins raised together scored 86% concordance rate on an iq test, MZ raised separately  76%, DZ twins 55% biological siblings 46%. it was concluded that 70% of intelligence is inherited, 30% is due to environment. This study

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Monozygotic twins (MZ) or identical twins share 100% of their genotype. Dizygotic twins (DZ) or faternal twins share 50% of their genotype like regular siblings. Since twins are similar, they can be used in research to test behavior.

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They investigated genetic inheritance and intelligence in twins and siblings. It was concluded that 70% of IQ is due to genes and 30% due to the environment.

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Gene mapping is the process of documenting the location of specific genes on a strand of dna 

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Gene mapping is the process of documenting the location of specific genes on a strand of dna 

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Caspi et al used gene mapping to investigate the role that the 5-HTT gene had on depression. It was found that participants who have the mutilated 5-HTT gene were more susceptible to having depression than those who did not have the mutilated gene. However, people without the mutation could still experience depression. Caspi et al discovered that having the mutilated gene did not mean that people are guaranteed to have depression, but that the mutilated gene may cause people to be at a higher chance of developing depression. By using gene mapping, Caspi et al could focus on one specific gene to determine the impact that gene has on human behavior.

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Finding genes that effect certain behaviors

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There are two different categories of twins; mono-zygotic and di-zygotic. Mono-zygotic twins are identical twins and share 100% of their dna. Meanwhile, di-zygotic twins are fraternal twins and only share 50% of their dna. Researchers use twins in their studies because of their high concordance rate, which means that there is a high likelihood that a certain behavior was caused or correlated with genes rather than affected by environmental factors.

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Bouchard and McGue investigated if intelligence is inherited. The researchers used mono-zygotic and di-zygotic twins due to their high concordance rate. Bouchard and McGue hypothesized that if twins who live together had the same intelligence level, then it is due to their genes. However, is twins who lived apart had different intelligence levels, then it is assumed that their environmental factor held a role in shaping their intelligence. It was found that both environmental and genetic factors influenced a person's intelligence. More specifically, human intelligence levels are attributed by 30% of environmental impact and 70% of genetic inheritance.