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.
(In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.(In genetic terms, a recessive trait is one that is phenotypically expressed only in homozygotes).Examples of dominant disorders include: 1  Achondroplasia (a common form of dwarfism with short arms and legs),In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.