The Nobel Prize honoring the unravelling of the operon model was granted to__________________?
Show answer Hide answer
Answer: A. Jacob and monod (1965)
Explanation
Francois Jacob and Jacques Monod won the Nobel Prize in nineteen sixty-five. Their pioneering work unraveled the operon model controlling gene expression in bacteria. The prestigious prize honored their discoveries concerning genetic regulation of protein synthesis. The lac operon model explained how bacteria regulate gene transcription in response to nutrients. Regulatory genes control the expression of structural genes through coordinated repressor proteins. Molecular biology advanced tremendously following the elucidation of transcriptional control mechanisms.
Genetics textbooks feature the operon model as a fundamental paradigm of gene regulation. Understanding transcriptional control underpins modern biotechnology and genetic engineering applications. Nobel Prize discoveries highlight monumental leaps forward in fundamental molecular biology research. Crick proposed central dogma principles and codon structures rather than the operon model. Watson and Crick discovered the double helix structure of DNA in nineteen fifty-three. Briuen and Davidson did not receive the Nobel Prize for operon model discoveries.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Nyctalopia alongside keratinization correlates with a shortage of____________________?
Show answer Hide answer
Answer: A. Vitamin A
A deficiency of vitamin A commonly leads to night blindness and abnormal tissue changes. Medical diagnostics link nyctalopia directly to inadequate systemic levels of vitamin A. Epithelial keratinization occurs when the...
Q2. Neurotoxins are discovered within___________________?
Show answer Hide answer
Answer: D. Sorghum
Sorghum plants can contain cyanogenic glycosides that act as poisons under stress. Environmental factors trigger the synthesis of neurotoxins within growing sorghum tissues. Livestock consuming stressed sorghum can suffe...
Q3. Mutation breeding finds its primary application in____________________?
Show answer Hide answer
Answer: A. Self pollinated crops
Mutation breeding is most effective and primarily applied in self-pollinated crop varieties. Homozygous lines are much easier to isolate following mutagenesis in self-pollinated plants. Self-pollination allows recessive...
Q4. Sodium and potassium levels can be quantified through the deployment of____________________?
Show answer Hide answer
Answer: B. Flame photometer
A flame photometer is the standard analytical instrument for quantifying alkali metals. Sodium and potassium ions emit characteristic light wavelengths when excited in a flame. Instrumental analysis relies on flame photo...
Q5. The grass exhibiting the highest salt tolerance is___________?
Show answer Hide answer
Answer: C. Kallar grass
Kallar grass is well-known for its exceptional tolerance to high salinity and sodicity. The grass thrives in degraded saline soils where conventional crops fail completely. Biological reclamation of salt-affected lands f...
Q6. The livestock sector contributes toward the GDP up to______________________?
Show answer Hide answer
Answer: A. 8.5 %
Agricultural economic reports detail the substantial contribution of livestock to national GDP. The livestock sector generates significant monetary value within the broader agricultural economy. National economic metrics...