Answer:
Calcium becomes an ion with a charge of 2+
Oxygen becomes an ion with a charge of -2
Explanation:
since calcium lost two electrons, it has 20protrons, but only 18 electrons. this makes calcium a positive ion with a charge of 2+
An oxygen molecule consists of two oxygen atoms that have a double bond between each other and share valence electrons. the oxygen ion is formed when the atom of oxygen gains two valence electrons. this results in an oxygen ion with a charge of -2
Are there choices to choose from, because that is a very general question?
During DNA replication, DNA helicase enzymes move in a range of along the DNA.
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What are the benefits of DNA helicase?</h3>
Helicase enzymes are found in all living organisms, from bacteria to humans. They are required for replication and repair of DNA.
Helicases are enzymes that can unwind double-stranded DNA. They are found in all living cells and they play a key role in gene expression, replication and repair.
Helicases are also used for other purposes such as the production of recombinant proteins and the isolation of DNA from cells.
The helicase enzymes have many benefits for humans. For instance, they can break down the DNA from a cell to extract information about it. They also enable us to duplicate our genes so that they are preserved during cell division.
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Gel electrophoresis shows your DNA. Its how they compare it in criminal cases
The answer to the question if i remember right is chemical
weathering