How do the leading and lagging strands differ?

1) The leading strand is synthesized in the same direction as the movement of the replication fork, while the lagging strand is synthesized in the opposite direction.

2) The leading strand is synthesized at more than twice the rate of the synthesis of the lagging strand because of the direction of movement.

3) The leading strand is synthesized in short fragments that are ultimately stitched together, while the lagging strand is synthesized continuously.

4) The leading strand is synthesized by adding nucleotides to the 5' end

Question

How do the leading and lagging strands differ? 
	
1) 	The leading strand is synthesized in the same direction as the movement of the replication fork, while the lagging strand is synthesized in the opposite direction.
	
2) 	The leading strand is synthesized at more than twice the rate of the synthesis of the lagging strand because of the direction of movement.
	
3) 	The leading strand is synthesized in short fragments that are ultimately stitched together, while the lagging strand is synthesized continuously.
	
4) 	The leading strand is synthesized by adding nucleotides to the 5' end

anonymous · Answer

I cant choose between 1 and 4