Answer:
Organisms develop from a single cell into many cell types, which are organized into tissues and organs. During development, cells use both inherited info and external signals from neighbors to “decide on” their behavior and identity.
The range of ratio which can be used to indicate that a gene was not expressed in the cancerous tissue but was expressed in the healthy tissue is 0.5 - 0.0625.
Microarray is a technique that is used to measure the differences between the cancer cells and the normal cells. The method measures the amount of mRNA for genes that are present in a sample and compare the results between healthy and cancerous cells. A value of less than 1 indicates that the genes from the microarray are more active in normal cells.
A good reason for why tobacco smoke is considered a carcinogen is because it causes mutations leading to cancer.
1)Carbon
2)Hydrogen
3)Nitrogen
4)Oxygen
5)Phosphorus
6)Sulfur
