Human carcinoembryonic antigen (CEACAM6)
This gene codes for a protein that is located in the extracellular matrix. This protein is involved with cell cycle regulation, particularly with adhesion between cells. It is thought to be a proto-oncogene. When over-expressed, it becomes an oncogene, because it leads to unregulated cell division and inhibits cellular death T/F

True.

Explanation:

Cancer may be defined as the uncontrolled growth of the cell cycle that leads to the abnormal cell formation. The cancerous cell require less time to grow as the normal cells and they are immortal in nature.

The mutation in the tumor suppressor gene or in the proto oncogene leads to the formation of the cancerous cells. The carcinoembryonic antigen (CEACAM6) acts as proto oncogene and gain of function mutation will change this proto oncogene into oncogene. This leads to uncontrolled cell growth.

Thus, the correct answer is true.

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.