Phenylketonuria is caused majorly due to mutations in the _____ gene.

A genetic alteration in the DNA sequence (insertion, deletion or replacement of base/s) resulting in premature termination of protein synthesis (early stop codon) is known as ________.

Oculocutaneous Type II albinism is related to genetic defect in ___ gene.

In albinism, _____ pigment production is affected greatly.

In Tay-Sachs disease, metabolism of _____ is hampered.

In Tay Sachs disease, the mutation predominantly found is a _______.