You're wonderful, as always!! I would like to point out though that the last punnett square @ 16:00 has a mistake with the Bb and bb. (top right and bottom left should be switched). But otherwise, thank you so much for clearing these concepts up!!
Simply awesome sir.....so easy explanation...sir plz make video on real time PCR with taqman molecular beacon and syber green..it will be so helpfull..
Usually, in autosomal recessive pedigrees you will see that both parents are unaffected one of their children is affected by a disorder. That is usually a huge giveaway.