Question
Where are B-cells and T-cells formed? How do they differ from each other?
✓
Answer
B-cells are formed in bone marrow, while T-cells are formed in thymus. B-cells produce antibodies, while T-cells help B-cells in doing this.
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
Mention the importance of LH surge during menstrual cycle.
What will be the consequence, if cytokinesis does not follow the telophase stage of cell division? What term is given to this phenomenon?
- Mention the cause and the body system affected by ADA deficiency in humans.
- Name the vector used for transferring ADA-DNA into the recipient cells in humans. Name the recipient cells.
What are mutagens? Give an example.
How is the first sign of growing foetus noticed?
Name the blank spaces a, b, c and d in the table given below:
| S. No. | Name of the drug | Plant source | Organ system affected |
| (i) | a | Poppy plant | b |
| (ii) | Marijuana | c | d |
State true/ false with explanation:
- Abortions could happen spontaneously too.
- Complete lactation could help as a natural method of contraception.
The figure given below shows the relative contribution of four greenhouse gases to global warming.
- Identify the gases A and C.
- Why are these four gases called greenhouse gases?
Bacteria cannot be seen with the naked eyes, but these can be seen with the help of a microscope. If you have to carry a sample from your home to your biology laboratory to demonstrate the presence of microbes under a microscope, which sample would you carry and why?
In a cross between two tall pea plants, some of the offspring produced were dwarf. Show with the help of a Punnett square, how this is possible.
Or
When a tall pea plant was selfed, it produced onefourth of its progeny as dwarf. Explain with the help of a cross.
Or
When a tall pea plant was selfed, it produced onefourth of its progeny as dwarf. Explain with the help of a cross.