A group of geneticists are interested in identifying genes that may play a role in susceptibility to asthma. They study the inheritance of genetic markers in a series of families that have two or more asthmatic children. They find an association between the presence or absence of asthma and a genetic marker on the short arm of chromosome 20 and calculate a lod score of 2 for this association. What does this lod score indicate about genes that may influence asthma?

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A: Gregor Mendel discovered the fundamental doctrines of inheritance through his study of pea plants.…

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Q: None

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Q: Tay–Sachs disease is caused by loss-of-function mutations ina gene on chromosome 15 that encodes a…

A: Tay–Sachs disease can be defined as a hereditary condition that causes nerve cells present in the…

Air Pollution

The excess accumulation of pollutants or undesirable alterations in the environment and its resources such as air, water, and land can be referred to as pollution. Pollution affects the components of the environment. Pollution is considered a global issue as it is showing harmful effects worldwide. Metropolitan cities are more impacted by pollution than countryside or villages.