In large scale, genome-wide association studies in humans, what types of genetic markers do researchers look for? a. lengthy sequences that might be shared by most members of a population b. SNPs where one allele is found more often in persons with a particular disorder than in healthy controls c. SNPs where one allele is found in families with a particular introns sequence d. SNPs where one allele is found in two or more adjacent genes

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23-08-2022
Biology

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In large scale, genome-wide association studies in humans, what types of genetic markers do researchers look for? a. lengthy sequences that might be shared by most members of a population b. SNPs where one allele is found more often in persons with a particular disorder than in healthy controls c. SNPs where one allele is found in families with a particular introns sequence d. SNPs where one allele is found in two or more adjacent genes

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nikitarahangdaleVT nikitarahangdaleVT · Answer 1 · 2022-08-30T11:45:03+02:00

In large-scale genome-wide association studies, the researchers look for the genetic marker where in SNPs, one allele is found more often in people with a particular disorder than in healthy controls. So the correct option is B.

What are genetic markers?

A sequence of DNA whose physical location on a chromosome is known is called a genetic marker. To find the responsible gene for an inherited disease, genetic markers are used.

The segments of DNA that are close to each other on a chromosome are usually inherited together in the offspring. Thus, the inheritance of a gene which is present nearby and has not yet been identified can be tracked by a genetic marker. It's important that the approximate location of that gene be known.

The genetic marker may be a coding sequence or a non-coding sequence of DNA.

Therefore the correct option is B.