The ability of scientists to identify and isolate genes based on information about their location in the genome is known as:
A) Functional mapping
B) Positional cloning
C) Positional mapping
D) Microarray analysis
E) None of these

Question

Quizplus · Accepted Answer

Positional cloning involves using markers to identify the location of a gene on a chromosome, followed by isolating and studying the gene. Applied to the identification of disease-causing genes, this technique is particularly useful in groups of people who show a particular disease at an unusually high frequency. Functional mapping is the process of systematically identifying the function of genes, and it does not necessarily involve identifying their location in the genome. Positional mapping is another term that refers to the process of finding the location of a gene on a chromosome. Microarray analysis is a technique that allows the expression of thousands of genes to be measured simultaneously, but it does not involve isolating specific genes based on their location in the genome. Therefore, the correct answer is B.

The Ability of Scientists to Identify and Isolate Genes Based