Explanation:

Recently  researchers at University of California San Diego School of Medicine discovered  enzyme named SPRK1 that reorganises paternal genome during fertilisation

• A person’s genome is inherited from the parents — during fertilisation, half of the father’s genome is mixed with half of the mother’s.
• Until now, enzyme SPRK1 was studied for its ability to splice ribonucleic acid (RNA), an important step that enables translation of genes to proteins.
• But SRPK1 leads a double life swapping protamine for histones once the sperm meets egg.
• SPRK1 most likely started out playing this role in early embryogenesis, and later evolved the ability to splice RNA.