Question
Explain metastasis. Why is it fatal?
✓
Answer
- Metastasis is the property of neoplastic or cancerous cells, by which the cancerous cells sloughed off from a tumour reach distant sites through body fluids and establish a new tumour, wherever they get lodged.
- It is fatal because the treatments like radiation therapy or surgery cannot be carried out at any particular location.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What happens when chromatids fail to segregate during cell division cycle? Explain your answer with an example.
Disorders
Dwarfism, Myxoedema, Addison’s disease, Cushing’s disease, Gigantism, Goitre
Dwarfism, Myxoedema, Addison’s disease, Cushing’s disease, Gigantism, Goitre
| Column A | Column B |
| (1) Pituitary | ———— |
| (2) Thyroid | ———— |
| (3) Adrenal Cortex | ———— |
Write two major adaptations in animals exhibiting external fertilization.
While creation and presence of variation is directionless, natural selection is directional as it is in the context of adaptation. Comment.
What is the goal of Human Genome Project (HGP).
Differentiate between diagnostics and therapeutics. Give one example and for each category.
The number of taxa exhibiting asexual reproduction is drastically reduced in higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible reasons for this situation.
Complete the following chart and rewrite :
What is the number of chromosomes in the following cells of a human male?
- Spermatogonial cells.
- Spermatids.
- Primary spermatocytes.
- Sertoli cells.
Viruses obtained by infecting bacteria having radioactive phosphorus contained radioactive DNA (labelled DNA), but not radioactive proteins.