Answer:
The complex structure of the DNA inside the nucleus varies from person to person, or possibly even the cells that make up one person.
The most crucial component of DNA that determines traits is a phosphate chain attached to a pentose sugar, which is then attached to nitrogen base pairs. Despite having five nitrogen base pairs, DNA only contains four of them;
Adenine
Cytosine
Thymine
Uracil (Only in RNA, replaces thymine) (Only in RNA, replaces thymine)
Thymine/Uracil benefit from the addition of adenine. Guanine and cytosine work well together.
The arrangement of the DNA is reproduced when the mRNA strands transcribe it.