Answer:
Option A, They have enzymatic properties that can covalently modify DNA.
Explanation:
Histones have very basic nature and possess no enzymatic properties. However, any modification of DNA is carried out after the end of translation process with the help of enzymes on the N –terminal tails through processes such methylation, acetylation, citrullination, phosphorylation.
There are several Histone-modifying enzymes in the human genome that interact with the non-histone proteins to form functional complexes
Hence, option A is correct
The reason why the infant of the mother has this type of abnormality is because of a history that she could have done that could have contributed to this abnormality, what would likely be the cause and the reason it occurred is because the mother has a history of chronic alcohol abuse.<span />
It represents the split chromosome is true about the chromatids.
<h3>What are the chromatid's characteristics?</h3>
One of a chromosome's two identical halves that has undergone replication in order to facilitate cell division is referred to as a chromatid. The centromere, a constrictive area of the chromosome, serves as the connection between the two "sister" chromatids.
<h3>What is a chromatid's purpose?</h3>
It permits cells to store two copies of their info in order to get ready for cell division. This is crucial to ensuring that daughter cells are strong and completely functional, carrying the entire complement of DNA from the parent cells.
To know more about chromatid's visit:-
brainly.com/question/29108845
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They all breathe oxygen
Their body is full of water
Hope this helped :D