DNA Microarray Analysis Quiz

What is the primary purpose of DNA microarrays?

• To measure cell growth rates

• To sequence entire genomes

• To study gene expression and genotyping

• To analyze protein structures

During sample preparation, what is the role of reverse transcription?

• To convert DNA into RNA

• To separate DNA strands

• To transcribe RNA into cDNA

• To label proteins with fluorescent dyes

In a DNA microarray, what does a green spot indicate?

• Gene expression in the healthy sample

• Gene expression in the tumor sample

• No gene expression in either sample

• Gene expression in both samples

What does a yellow spot on a microarray signify?

• Gene is expressed only in the healthy sample

• Gene is expressed only in the tumor sample

• Gene is expressed in both samples

• Gene is not expressed in any sample

What is the role of bioinformatics in microarray analysis?

• To analyze raw data from the microarray

• To label cDNA with fluorescent dyes

• To physically scan the microarray

• To prepare samples for hybridization