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प्रश्न
Give one significant contribution to the following scientists:
G. Gamow
उत्तर
Triplet nature of codon
APPEARS IN
संबंधित प्रश्न
Study the schematic representation of the genes involved in the lac operon given below and answer the questions that follow :
| p | i | p | o | z | y | a |
(a) Identify and name the regulatory gene in this operon. Explain its role in 'switching off' the operon.
(b) Why is the lac operon's regulation referred to as negative regulation?
(c) Name the inducer molecule and the products of the genes 'z' and 'y' of the operon. Write the functions of these gene products.
Short Answer Question:
Describe the structure of ‘Operon’.
Explain the role of Lactose as an inducer in Lac-operon.
Identify the event that would occur in 'lac operon' of E. coli when the growth medium has high concentration of lactose.
______ refers to the chemical molecule present in the cytoplasm that inactivates the repressor.
Which of the following is the function of promoter in lactose operon of Escherichia coli?
A low level of expression of lac operon occurs at all the time. Can you explain the logic behind this phenomena.
Select the correct pair.
What is the role of a repressor gene?
How does the operon function in the presence of lactose?
