No. Despite what you might have heard, cigar smoking isn't safer than cigarette smoking â even if you don't intentionally inhale the smoke. Like cigarette smoking, cigar smoking poses serious health risks, including: 1  Cancer. 2  All tobacco smoke contains chemicals that can cause cancer, and cigar smoke is no exception.
Autosomal recessive: cystic fibrosis (CF), sickle cell anemia (SC), Tay Sachs disease. Genes are inherited from our biological parents in specific ways. One of the basic patterns of inheritance of our genes is called autosomal recessive inheritance.
Cystic fibrosis (CF) is a relatively common inherited disease in which from infancy there are recurrent chest infections causing lung damage, intestinal malabsorption leading to severe malnutrition and growth failure, and there is an excess of salt in the sweat.here is a gene on each number 7 chromosome that is responsible for the production of a protein called cystic fibrosis transmembrane regulator (CFTR). Mutations in this gene lead to absent or defective CFTR production, causing CF.