Study the pedigree chart given below
Channel: Doubtnut
Date: 2020-08-30

Study the pedigree chart given below img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/ERRL_BIO_NCERT_NEET_V02_7_1_E01_548_Q01.png" width="80%" What does its show