Which of the following genetic markers are present in the hi

Which of the following genetic markers are present in the highest numbers within the human genome?

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Which of the following genetic markers are present in the highest numbers within the human genome? Select one: a. RFLPS b. Minisatellites. c. Microsatellites X d. Single nucleotide polymorphisms

Solution

Answer: (d) Single nucleotide polymorphism

Single nucleotide polymorphisms (SNPs), are the most common type of genetic variation among people. Each SNP represents a difference in a single DNA building block, called a nucleotide.

They occur once in every 300 nucleotides on average, which means there are roughly 10 million SNPs in the human genome. They can act as biological markers, helping scientists locate genes that are associated with disease.

According to several other estimates, they occur once every 1000 bp, thus making SNPs the most abundant molecular markers.