A DNA microarray is a tool that owes its existence to earlier genomics investigations.What essential contribution of genomics makes microarrays possible?
A)recently improved RNA sequencing technologies
B)continuously improving methods of gene cloning
C)more efficient techniques for cDNA synthesis
D)knowledge of which DNA sequences to synthesize for the array
E)the concept that hybridization between single-stranded nucleic acids can be used as a means of identifying any DNA sequence

Question

Quizplus · Accepted Answer

The essential contribution of genomics that makes microarrays possible is the knowledge of which DNA sequences to synthesize for the array. Microarrays rely on the ability to synthesize and immobilize specific DNA sequences onto a chip or slide in a highly organized manner, thus allowing researchers to study the expression of thousands of genes simultaneously. This requires prior knowledge of the sequences of interest, which has been gained through genomics research.

A DNA Microarray Is a Tool That Owes Its Existence