D. New York has seen a steady decline in population.
I'm sure its coercive.
Hope this helps :)
Answer:
Option-1
Explanation:
DNA sequencing refers to the method which analyses the DNA and determines the sequence of nucleotide.
The Sanger method uses the same things used during the DNA replication process but an additional thing is also there called the dideoxynucleotides attached with fluorescent dye.
When thus ddNTP binds to the growing chain, then the replication process stops as ddNTP lacks the -OH group at 3'position.In the given question, since only 3 bands shows the result but one band does not it means that the florescent label has not been recognized as ddNTP label.
Thus, the problem lies in the florescent label and therefore option-1 is correct.
