Select the correct statement.

Punnett square was developed by a British scientist (geneticist) Reginald C. Punnett. 

(1) Franklin Stahl was involved in experimentally proving semiconservative mode of replication of DNA in E. coli, along with Matthew Meselson. 

(3) Spliceosomes are involved in removing the intron parts of hnRNA and attaching exon parts during splicing or hnRNA processing to form functional mRNA that can take part in translation. 

(4) Transduction was discovered by Zinder and Lederberg in bacteria infected by bacteriophages. It is a means of gene transfer from one bacterium to the other.