Which of the following is an autosomal recessively inherited disorder?

Cystic Fibrosis is indeed an autosomal recessively inherited disorder, which means that an individual must inherit two copies of the mutated CFTR gene (one from each parent) to manifest the disease. This genetic condition primarily affects the respiratory and digestive systems due to the production of thick and sticky mucus, leading to various complications such as lung infections and difficulty in nutrient absorption.

In contrast, asthma, chronic bronchitis, and emphysema are not inherited in this manner. Asthma is primarily influenced by a combination of genetic and environmental factors but does not follow a simple autosomal recessive pattern. Chronic bronchitis and emphysema are forms of chronic obstructive pulmonary disease (COPD), often caused by external factors such as smoking and environmental exposures rather than solely genetic inheritance. While genetic predispositions may play a role in these conditions, they do not adhere to the specific inheritance pattern associated with autosomal recessive disorders like cystic fibrosis.