Question

How does DNA differ from person to person?

Answer 1

Hint: DNA is a genetic material which is responsible for the living organisms across the earth. This is the genetic constituent of the cell. Each living cell or nucleus contains this genetic material which will help them to evolve and distribute into their belonged species by carrying the genetic character of their own species.

Complete answer:
• The entire human DNA is mostly similar in its sequence or the base pair arrangement but the reasons or the differences which occur in humans are genetic variations and these are responsible for creating differences in different people.
• The two major reasons for the difference in DNA genetic material is in the meiosis during reproduction the parents with unique DNA and genetic material exchange with each other
• Both DNA combine to form the offspring DNA and during this combination the genetic material is condensed and transferred to the offspring and hence bring difference in human offspring with few similar characters.
• So the meiosis process creates a similar DNA pattern but exhibits some changes in the offsprings. And the second reason is the mutation, in mutation the DNA with any of its base pair in the sequence is damaged, changed or deleted and in this process the DNA is changed even if it is only a base pair or a single sequence it creates genetic variations.

Note: The DNA analysis is done to identify the person Identity as it is unique in each human with more differences and similarities. And in most of the cases identical twins have identical DNA but there are few scientists who still do not agree with these identical characters of DNA. So this is how the DNA is different for different humans.