Question
How is a cancerous cell different from a normal cell?
✓
Answer
| Normal cell | Cancerous cell | |
| 1. | Normal cells show the property of contact inhibition. Therefore, when these cells come into contact with other cells, they stop dividing. | Cancerous cells lack the property of contact inhibition. Therefore, they continue to divide, thereby forming a mass of cells or tumor. |
| 2. | They undergo differentiation after attaining a specific growth. | They do not undergo differentiation. |
| 3. | These cells remain confined at a particular location. | These cells do not remain confined at a particular location. They move into neighboring tissues and disturb its function. |
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
Baculoviruses are good examples of biocontrol agents. Justify giving three reasons.
Community service department of your school plans a visit to a slum area near the school with an objective to educate the slum dwellers with respect to health and hygiene.
- Why is there a need to organise such visits?
- Write the steps you will highlight as a member of this department, in your interactions with them to enable them to lead a healthy life.
What characteristics make a community stable?
Incompatibility is a natural barrier in the fusion of gametes. How will you explain this statement?
- Differentiate between unambiguous and degenerate codons.
- Write two functions of the codon AUG.
Observe the diagram and answer the questions related to it.
- From which cells newly formed cells are added? How?
- How is rate of growth in zone of cell elongation?
- What is peculiarity of zone of differentiation? How is rate of growth in this region?
Explain the role(s) of the following in Biotechnology:
- Restriction endonuclease.
- Gel – electrophoresis.
- Selectable markers in pBR322.
Describe the inter-relationship between productivity, gross primary productivity and net productivity.
A woman has certain queries as listed below, before starting with contraceptive pills. Answer them.
What schedule should be followed for taking these pills?
What schedule should be followed for taking these pills?
Classify the following as examples of homology and analogy:
- Mouth parts of cockroach and butterfly.
- Hearts of rabbits and human beings.
- Eyes of octopus and mammals.
- Sweet potato and potato.
- Stings of honeybee and scorpion.
- Tendrils of Lathyrus and tendrils of Gloriosa.