5th July 2026

A 45-year-old man presents to the cardiology clinic with a history of exertional dyspnoea and occasional chest pain.

A 45-year-old man presents to the cardiology clinic with a history of exertional dyspnoea and occasional chest pain. He mentions that his father died suddenly at the age of 50, and his younger brother was recently diagnosed with HCM. Genetic testing has confirmed that the patient has a mutation in the MYH7 gene. Considering the inheritance pattern of this condition, which of the following is the most likely way this mutation is transmitted?

Select the SINGLE most appropriate option from the list below. Select ONE option only.