Phele war mene telegram so war open Kiya hai.. Even telegram m timer laga rakha tha. Wo hatya mene... Sirf update check karna k liya😭. Sun ka acha lga tumhara acha gya

chromosome numbers trisomy of 21 - down's syndrome chromosome 16 - alpha thalassemia chromosome 11 - beta thalassemia chromosome 1 - max genes (2968) and sequencing done in may 2006 chromosome Y - fewest gene ( 231)