The one-gene-one-enzyme hypothesis was postulated by:
Correct answer: A. Beadle and Tatum
- A. Beadle and Tatum
- B. R. Franklin
- C. Hershey and Chase
- D. A. Garrod
Explanation
In 1948, Beadle and Tatum proposed the one gene one enzyme hypothesis, which states that a gene controls the metabolic machinery of the organism through the synthesis of an enzyme. This laid the foundation of biochemical genetics. Beadle and Tatum were awarded the Nobel Prize in 1958. This one gene-one enzyme theory has now been changed to the one gene-one polypeptide hypothesis as proposed by Yanofsky. This hypothesis suggests that one gene synthesises one polypeptide and many polypeptides form one enzyme.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chromosomes questions
One turn of the helix in a B-form DNA is approximately:
Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
Which one of the following pairs of nitrogenous bases of nucleic acids are wrongly matched with the category mentioned against them?
Amino acid sequences are decided by the sequence of _ during protein synthesis:
Protein synthesis in an animal cell occurs:
Which one of the following makes use of an RNA template to synthesize DNA?