Transcription
In prokaryotes, promoter consensus -10 region (Pribnow box) is rich in which bases?
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More genetics and evolution Practice Questions
In a transcription unit, the DNA strand that has the same base sequence as the synthesised mRNA exce...
In a transcription unit, the DNA strand that has the same base sequence as the synthesised mRNA exce...
Which factor is required for the initiation of transcription in Prokaryotes?
Which factor is required for the initiation of transcription in Prokaryotes?
In a population at Hardy-Weinberg equilibrium, if the frequency of the recessive allele is 0.2, what...
In a population at Hardy-Weinberg equilibrium, if the frequency of the recessive allele is 0.2, what...
According to Darwin's theory of natural selection, the major driving force behind the evolution of n...
According to Darwin's theory of natural selection, the major driving force behind the evolution of n...
DNA fingerprinting primarily relies on the analysis of which highly variable repetitive DNA sequence...
DNA fingerprinting primarily relies on the analysis of which highly variable repetitive DNA sequence...
Approximately how many genes were estimated in the human genome according to the findings of the Hum...
Approximately how many genes were estimated in the human genome according to the findings of the Hum...
Among the following hominids, which one is generally regarded as the most recent and is considered t...
Among the following hominids, which one is generally regarded as the most recent and is considered t...
The diversification of Darwin's finches on the Galapagos Islands into many beak forms from a common ...
The diversification of Darwin's finches on the Galapagos Islands into many beak forms from a common ...
In the bacterial lac operon, the binding of the repressor protein to the operator region produces wh...
In the bacterial lac operon, the binding of the repressor protein to the operator region produces wh...
The forelimbs of a whale, a bat, and a human share a similar bone arrangement despite differing func...
The forelimbs of a whale, a bat, and a human share a similar bone arrangement despite differing func...
The Miller and Urey experiment provided experimental support for which hypothesis regarding the earl...
The Miller and Urey experiment provided experimental support for which hypothesis regarding the earl...
A sudden volcanic eruption drastically reduces a population to a few survivors, causing random chang...
A sudden volcanic eruption drastically reduces a population to a few survivors, causing random chang...
About This Question
- Subject
- biology
- Chapter
- genetics and evolution
- Topic
- transcription
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
AT
- Promoter: A DNA sequence where RNA polymerase binds to initiate transcription.
- Pribnow Box: In bacteria (prokaryotes), there is a conserved sequence centered around -10 nucleotides from the start site.
- Sequence: The consensus sequence is TATAAT.
- Base Composition: This region is AT-rich. Because A-T base pairs are held by only two hydrogen bonds (compared to three in G-C), it is energetically easier for the cell to 'melt' the DNA strands here to initiate transcription.
This medium difficulty biology question is from the chapter genetics and evolution, covering the topic of transcription. It appeared in the 2025 exam.
Looking for more practice? Explore all biology questions or browse genetics and evolution questions on RankGuru.