During the replication of DNA, the synthesis of DNA on lagging strand takes place in segments. These segments are called
a)	Double helix segments	b)	Satellite segments
c)	Kornberg segments	d)	Okazaki segments

(d)

During DNA replication, there occur a simultaneous continuous synthesis of DNA at both the strands of template in 5’ 3’ direction of newly synthesised strand.

Okazaki , (1968) suggested that it is only one strand,  which shows such a continuous replication (called leading strand), while other strand replicates in a discontinuous manner, ., synthesises short fragments called Okazaki fragments. This discontinuous strand is called lagging strand.