Single gene inheritance. Single gene inheritance, also called Mendelian or monogenetic inheritance. This type of inheritance is caused by changes or mutations that occur in the DNA sequence of a single gene. There are more than 6,000 known single-gene disorders, which occur in about 1 out of every 200 births.ome examples of monogenetic disorders include: 1  cystic fibrosis, 2  sickle cell anemia, 3  Marfan syndrome, 4  Huntington's disease, and. 5  hemochromatosis.
The secret is in the chemical composition of dry ice, which is carbon dioxide in solid form. At room temperature, carbon dioxide exists as a gasâthe very gas we exhale every time we breath. But this familiar compound has some unusual physical properties.
Dry ice is also formed into nuggets, by forcing the snow through stainless steel dies with round holes that are one-eighth to three-quarters of an inch in diameter. The nuggets break off in random lengths of 1 to 2 inches. Dry ice does not melt, but vaporizes, passing from a solid state to a vapor without going through a liquid state. This is called sublimation. The time this takes depends on temperature, air movement and whether the dry ice is in an enclosed area. Dry ice is what is called an expendable refrigerant, which leaves nothing behind when it evaporates, so it is desirable for shipping and storing a variety of foods.