The types of mutations include: This type of mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene. A nonsense mutation is also a change in one DNA base pair.
The Earth's core is made up primarily of the metals nickel and iron. The inner core is mostly iron, while the outer core is composed of both nickel and iron.... The Earth's core is made up primarily of the metals nickel and iron. The inner core is mostly iron, while the outer core is composed of both nickel and iron. The inner core is very hot at 9,000 to 13,000 degrees Fahrenheit, however, the iron is not liquid because of the pressure of the Earth pressing in on it.
The core (C), beneath the mantle (B), is the deepest and hottest layer of the Earth. It is made almost entirely of metal. The core is made of two layers: the outer core, which borders the mantle, and the inner core. The inner core is shaped like a ball. Iron and nickel in the outer core form an alloy, or a mixture of metallic elements. The outer core is approximately 2,300 kilometers thick and very hot, between 4,000 and 5,000 degrees Celsius. The inner core is made mostly of iron. It is about 1,200 kilometers thick.