What would be the destiny of gametes if due to some reasons the vasa efferentia in the human reproductive system gets blocked?

The gametes will not be transported from testes to epididymis.

The correct answer is Option (1) –The gametes will not be transported from testes to epididymis.

If the vasa efferentia are blocked, the most likely outcome is that gametes (sperm) will not be transported from the testes to the epididymis. This would prevent the proper maturation and storage of sperm, potentially leading to infertility.

The vasa efferentia are small, thin-walled tubes that connect the rete testis (a network of tubules within the testes) to the epididymis. The epididymis is where sperm mature and are stored before being ejaculated. Therefore, if the vasa efferentia are blocked, sperm will not be able to pass from the testes to the epididymis, which is crucial for their proper function. 

The path of transport of gametes is Seminiferous tubules → rete testis → vasa efferentia → epididymis. So, if vasa efferentia are blocked the gametes from testes will not enter epididymis.