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nipwoni
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Sam and Alex are first cousins. Lee and Morgan are twins. But Sam and Alex are more closely related to each other than are Lee and Morgan, in terms of genetics. How did this happen?
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This can be explained through the process of genetic inheritance. Sam and Alex may share more genetic similarities due to the passing down of genes from their common ancestors. On the other hand, Lee and Morgan may have inherited different sets of genes from their ancestors, resulting in less genetic similarities between them.
Yes, it is possible for two individuals to become closer relatives than others. This is known as genetic relatedness and it is determined by the amount of shared genetic material between two individuals. The closer the genetic relatedness, the closer the individuals are considered as relatives.
Environmental factors do not directly affect genetic relatedness. However, environmental factors such as diet, lifestyle, and exposure to certain substances can influence gene expression and may result in different phenotypic traits, which can affect the perception of genetic relatedness.
There is no specific percentage of genetic similarity that determines close relatives. Generally, individuals who share 50% or more of their genetic material are considered as close relatives. However, this can vary depending on the context and cultural beliefs.
Yes, genetic relatedness can change over time due to mutations, genetic drift, and natural selection. These processes can alter an individual's genetic makeup and affect their relatedness to others in the population. Additionally, changes in family structures and relationships can also impact genetic relatedness between individuals.