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 outer core of the Earth, separated by the Gutenberg discontinuity, is made up of liquid nickel and iron and is 1400 miles deep. The inner core is solid, even though the temperature is 9000 degrees F. This is because the pressure there is 45,000,000 pounds per square inch. Learn more about Layers of the Earth