Question
What is an operon? Name any four operons in E.coli.
✓
Answer
All the genes controlling a metabolic pathway, constitute an operon.
Example:
Lac operon - trp operon. Val operon - his operon.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
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions.
- Acrosome.
- Nucleus.
- Middle piece.
On his visit to a national park, Harshendra was very angry as the forest authorities did not allow him to enter a specified area. On returning back, he discussed the matter with his friend, who explained him the reason.
- Which category of conservation strategy does national park belong?
- Name India's first national park.
- At present, there are how many national parks in India?
- What values are shown by Harshendra's friend?
Why is predation important and required in a community with rich biodiversity? Explain with the help of suitable examples.
OR
What is 'predation"? Explain with the help of suitable examples, why it is required in a community with rich biodiversity.Indicate the stages where meiosis and mitosis occur (1, 2 or 3) in the flow chart,
What is meant by emasculation? When and why does a plant breeder employ this technique?
What do you understand by co-dominance? Explain the co-dominance by taking example of blood group in human.
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.
Enlist the probable causes of infertility.
Draw a labelled schematic sketch of replication fork of DNA. Explain the role of the enzymes involved in DNA replication.
Shubham was taught in the biotechnology class about the production of recombinant protein with the help of bioreactor. He was surprised by this new information. In the evening he discussed it with his elder brother, who is a biotechnologist. He smiled and explained him in detail.
- What is recombinant protein?
- Why is bioreactors useful in industries?
- What are the values shown by Shubham?