What is life?
We say a cell is alive. But look inside a cell and all you will see are molecules, collections of atoms that are as inanimate as the screem in front of you. How does a set of objects make a dynamic living organism? This question is what we are talking about in molecular biology.
All life forms are the product of evolution. Life today is far too complicated to have arisen spontaneously from simple molecules. Its present complexity can be understood by the accumulation of small advantageous changes over long periods of time.
In the universe, all things tend to become more disordered, a property called entropy. Cells are highly ordered structures that must overcome the disorder of entropy by using energy. The acquisition of energy and its efficient usage are necessities that fundamentally shape living things.
To be continued……
capping→poly（A）tail→splicing
alternative splicing occurs in immune cells
Topo Ⅰ/Ⅱ
primer
Okazaki
telomere+centromere=heterochromatin
hiatone tails can be covalently modified
mRNAs can be localized to specific regions
All life forms are the product of evolution. Life today is far too complicated to have arisen spontaneously from simple molecules. Its present complexity can be understood by the accumulation of small advantageous changes over long periods of time.
In the universe, all things tend to become more disordered, a property called entropy. Cells are highly ordered structures that must overcome the disorder of entropy by using energy. The acquisition of energy and its efficient usage are necessities that fundamentally shape living things.
To be continued……
capping→poly（A）tail→splicing
alternative splicing occurs in immune cells
Topo Ⅰ/Ⅱ
primer
Okazaki
telomere+centromere=heterochromatin
hiatone tails can be covalently modified
mRNAs can be localized to specific regions
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