Assertion : Benign tumours are called neoplastic cells.
Reason : Malignant tumour remain in place to form a compact mass by a process known as metastasis.

Assertion : Benign tumors are called neoplastic cells. Reason : Malignant tumor remain in place to form a compact mass by a process known as metastasis.

Cells obtained form cancerous tumours are known as

Assertion (A) : The phenomenon where tumour cells detach and migrate to other parts of the body where they give rise to secondary tumours is called metastsis. Reason (R) : A bnormal antigens on the surface of cell and unusual member of chromosomes cause metastasis. The correct answer is:

Assertion : Mitochondria is known as power house of cell. Reason : ATP production takes place here.

Assertion: Protooncogenes are present in normal cells Reason: Protooncogenes may causes malignant tumour in animals, if activated.

Assertion: Protooncogenes are present in normal cells Reason: Protooncogenes may causes malignant tumour in animals, if activated.

Assertion : Simple columner epithelium is also called as Germinal epithelium. Reason : Columnar cells of gonads forms gametes .

$ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in the tympanic cavity of the ear.

$ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in the tympanic cavity of the ear.

What are true about angiosarcoma ? (a) Malignant tumour cells divide erratically (b) Malignant tumour formed from epithelial cells (c) Malignant tumours originate from mesoderm (d) Malignant tumours form in spleen and lymph nodes.