Viruses are not considered "alive" because they lack many of the properties that scientists associate with living organisms. Primarily, they lack the ability to reproduce without the aid of a host cell, and don't use the typical cell- division approach to replication.
DNA is unzipped by helicase at the origin of replication. There are several origins of replications in eukaryotic DNA replication, while only one in prokaryotic replication.
Take a dna test... he will be more confident about it then
The poem on how one's lifestyle can affect functions of a circulatory and respiratory system.
Daily practices to show
how much you know and make sure that yourself you are growing
You are very ready to keep away those disturbing diseases
which one day they may break your body into pieces.
Breathing in smoke
It allows yourself to be freely choked
Taking your blood and lungs into a problem
And again into a great risk of cold blood.
