It is widely know that each cell cycle during DNA replication some fraction of the telomeres is lost, and this phenomenon is called the end replication problem. Well this is due to the fact that the DNA polymerase only adds nucleotides in 5´--> 3´ direction, thus the synthesis of one of the two DNA strands will need some RNA primers for its polymerization (and DNA polymerase will replicate DNA in a "jumping" pattern). Then, in the very end of the synthesis of this strand (called lagging strand) one last fraction will not be copied from the template as even if the last primer is set in the very end of the chromosome, once this RNA is degraded a void space is going o remain invisible for DNA polymerase.
Well this is all well known, but my question is whether during each DNA replication it is ONLY the telomere of the chromatid whose origin was in the lagging strand which will be shortened? (Thus chromosome shortening is happening in a truly asymmetrical and stochastic pattern)