What happens directly after DNA polymerase adds a modified, colored nucleotide to the DNA strand during DNA sequencing?
A)The synthesis of the strand ends.
B)A normal nucleotide must be added next.
C)The DNA repair enzymes remove the nucleotide.
D)Restriction enzymes cut the DNA fragment.
E)The next nucleotide will be added at random.

Question

Quizplus · Accepted Answer

When a modified, colored nucleotide is added to a DNA strand during sequencing, it causes the synthesis of the strand to end. This is because these modified nucleotides are designed to terminate DNA synthesis, allowing for the determination of the sequence by identifying the terminal nucleotide of each synthesized fragment.

What Happens Directly After DNA Polymerase Adds a Modified, Colored