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.
Earth and Space. 2. 5 In the center of Earth is the core, consisting of two layers: the inner and outer core. The entire. iron and nickel core is extremely hot, so it is not surprising to learn that the outer core is in a. molten state. However, the inner core's iron and nickel are solid. This seems impossible, but. the inner core is kept solid by the intense pressure of all the layers above it. It spans a distance. of 2,400 km and is surrounded by the outer core, which is about 7,000 kilometers in diameter.