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

Centrosome is present in animal cell.

The genes present in normal cells of the body which can cause cancer are known as

Assertion:Prolonged activation leads to fatigue in striated muscle Reason:Prolonged activation causes accumulation of lactic acid in a striated muscle

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .

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