The answer is the third one
Answer:
There are 4 types of chromosome
1.Metacentric
2. Submetacentric
3.Acrocentric
4.Telocentric
Explanation:
Chromosome are found with in the nucleus of most living cells and consist of DNA that is tightly wound into threads like structure.
Chromosome can also be classified depending on their length, number,and arm size.
<span>Minerals have an ordered internal atomic arrangement which means that the atoms which make up the mineral are arranged in an ordered geometric pattern or also known as the crystal structure. Thus, it can be concluded that all minerals are crystals. The crystal structure is the same for the same type of mineral. For example, every piece of quartz found anywhere have the same crystalline structure. </span>
To perform this test to check if gold is real, make a light, tiny scratch on the item using a small nail file. Choose a spot that is not noticeable if possible. Use a dropper to apply a small drop of nitric acid to the scratch. If there is no reaction, then the piece is probably made from real gold.
