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प्रश्न
Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/position of eye(s) etc. Comment.
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उत्तर
There is a disturbance in co-ordinated regulation of the expression of sets of genes associated with organ development.
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संबंधित प्रश्न
In E.coli, three enzymes β- galactosidase, permease and transacetylase are produced in the presence of lactose. Explain why the enzymes are not synthesized in the absence of lactose.
The gene which codes for enzyme β-galactosidase ______.
Name the enzyme that catalyses the synthesis of the primary transcript.
List the changes that the primary transcript undergoes to become functional mRNA.
Match List I with List II:
| List I | List II |
| A. Gene ‘a’ | I. β-galactosidase |
| B. Gene ‘y’ | II. Transacetylase |
| C. Gene ‘i’ | III. Permease |
| D. Gene ‘z’ | IV. Repressor protein |
Choose the correct answer from the options given below:
Gene regulation can be described as switching genes ON or OFF according to which two factors?
Which condition regulates gene expression in a cell?
Which level of gene regulation involves the formation of the primary transcript in eukaryotes?
Which level of gene regulation involves the movement of mRNA from the nucleus to the cytoplasm?
What is the primary mechanism of gene expression control in prokaryotes?
What enzyme does Escherichia coli produce to break down lactose?
What are the two products formed when E. coli β-galactosidase breaks down lactose?
What term describes the process by which inducible enzymes are produced?
What is the molecule that triggers the synthesis of an inducible enzyme called?
Is the production of inducible enzymes an example of positive or negative control?
