Question

The spread of Cancer cells to other parts of the body is known as
A. Metamorphosis
B. Metastasis
C. Metagenesis
D. Metamerism

Answer 1

A normal cell undergoes regulated division, differentiation, and apoptosis (programmed cell death), when normal cells have lost the usual control over their division, differentiation, and apoptosis they become tumor cells. Tumor or neoplasm (any abnormal proliferation of cells) may be of two types, one is a benign tumor and malignant tumor.

Complete answer:
-Metamorphosis: Metamorphosis is a striking change of form or structure in an individual after birth. Molting and juvenile hormones which are not species-specific, apparently regulate the changes.
-Metastasis: The neoplastic cells that do not remain localized and encapsulated and become progressively invasive and the malignant are described as malignant tumors. They invade surrounding normal tissue called invasiveness and spread throughout the body through circulatory or lymphatic systems called metastasis. The term cancer refers specifically to malignant tumors. And the transition of a normal cell into a tumor cell is referred to as transformation. The transition from a normal to a transformed state is a multi-step process involving genetic as well as epigenetic changes and selection of cells with the progressively increasing capacity for proliferation, invasion, and metastasis.
-Metagenesis: The reproduction cycle of an organism is metagenesis that alternates between sexual and asexual generations. The reproduction cycle of a cnidarian is the best example of metagenesis.
-Metamerism: It is the phenomenon of having linear series of the segments and fundamentally similar in structure.
So, the correct answer is “Option B”.

Note:
DNA damage or genetic mutation resulting in the faulty regulation of the cell division leads to "Cancer". Also, cancer can be caused due to the activation of proto-oncogenes present in normal cells under certain conditions. Computed tomography and Magnetic resonance imaging, x-ray, PET scan (positron emission tomography) is a technique to diagnose cancer. A Molecular Biology technique to identify inherited susceptibility genes for certain cancers is also another diagnosing method for cancer. And also for diagnostic purposes, antibodies against cancer antigens can be used.