Four different fluorescent dyes are used in automated DNA se

Four different fluorescent dyes are used in automated DNA sequencing because?

A - there are four different types of DNA that can be sequenced using the procedure

B - DNA molecules are cut into four pieces during the process

C - the process involves four different steps        

D - there are four different nucleotides in DNA

Solution

since there are four different nucleotides in DNA four different fluoroscent dyes are used in DNA sequencing.