Question
Draw a labelled schematic structure of a transcription unit. Explain the function of each component in the unit in the process of transcription.
✓
Answer
Transcription unit: The transcription unit of DNA contains three regions in the DNA:
-
The promoter: It is the binding site for RNA polymerase for initiation of transcription.
-
The structural gene: It codes for enzyme or protein for structural functions.
-
The terminator: It is the region where transcription ends.
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
Explain the components of Ecosystem.###What do you understand by an ecosystem? Describe the structure and components of an ecosystem.
A. Explain how advent of biotechnology has helped in preventing infestation by nematodes and thereby increasing crop yield.
Answer the following questions:
Draw a labelled diagram of a sectional view of human seminiferous tubule.
Draw a labelled diagram of a sectional view of human seminiferous tubule.
- Write the scientific names (binomials) of the causative organisms of pneumonia.
- How does a healthy person acquire infection of this disease?
- Mention the characteristic symptoms of the disease.
What role does pituitary gonadotropins play during follicular and ovulatory phases of menstrual cycle? Explain the shifts in steroidal secretions.
List the characteristics of the disorders mentioned above that help in their diagnosis.
Suggest some methods to assist infertile couples to have children.
Name three species of fungi that cause ringworm. Mention the symptoms of this disease?
Recombinant DNA (rDNA) is a technology that uses enzymes to cut and paste together DNA sequences of interest. The recombined DNA sequences can be placed into vehicles called vectors that ferry the DNA into a suitable host cell where it can be copied or expressed.
i. A bacterial cell is shown in the figure given below. Label the part 'A' and 'B'. Also, mention the use of part A in rDNA technology.
ii. Suppose a linear DNA fragment and a plasmid has three restriction sites for EcoRI. How many fragments will be produced from linear DNA and plasmid, respectively?
i. A bacterial cell is shown in the figure given below. Label the part 'A' and 'B'. Also, mention the use of part A in rDNA technology.
ii. Suppose a linear DNA fragment and a plasmid has three restriction sites for EcoRI. How many fragments will be produced from linear DNA and plasmid, respectively?
Where does spermatogenesis occur in human testes? Describe the process of spermatogenesis upto the formation of spermatozoa.