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A ribozyme is an...

A ribozyme is an

A

expcetion to the one gene - one RNA molecule axiom

B

enzyme that adds the 5'cap and poly (A) tail to mRNA

C

example of rearrangement of protein domains caused by RNA splicing

D

RNA molecule that functions as an enzyme

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The correct Answer is:
D
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Ribozymes are

Which type of rRNA act as ribozyme in bacteria :-

Which one of the following also acts as a catalyst in a becterial cell Or Which one of the following rRNA acts as stuctural RNA as well as ribozyme in bacterial

Select the correct option to fill up the blanks in the following statements. A.Satellite DNA is___________. Br B.act as structural RNA as well as ribozyme in bacteria.

How many of the following statement are TRUE ? (i) 6 turns of B - DNA has 120 nucleotides. (ii) In prokaryotes , gene regulation generally occurs at transcriptional level. (iii) Operon concept was given by Jacob and Monod while working on yeast. (iv) The enzyme required for peptide chain synthesis is a ribozyme in bacteria and lies in 50S subunit. (v) A small segment of RNA synthesized during replication of DNA is ''Okazaki segment''.

What are ribozymes ?

In prokaryotes , which ribozyme helps in peptide bond formation ?

Assertion : All enzymes are proteins . Reason : Ribozymes are enzymes without proteins .

ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (A) Taking it together (Assorted questions of the Chapter for Advanced Level Practice
  1. Changes in a polypeptide after translation may involve the

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  2. Several proteins may be produced at the same time

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  3. A ribozyme is an

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  4. Inducible enzyme are

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  5. The control of gene expression is more complex in eukaryotic cells bec...

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  6. What are proteosomes

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  7. Regulatory proteins are the accessory proteins that interact with RNA ...

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  8. The first undoubted evidence about DNA being the genetic material came...

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  9. Dr. Khorana and his colleagues synthesized an RNA molecule with repeat...

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  10. The promoter site and the terminator site for transcription are locate...

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  11. The wild type E. coli cells are growing in normal medium with glucose....

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  12. In an E coli cell according to the operon theory, an operator gene com...

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  13. The lac operon requires a ' helper' protein which, by binding to the p...

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  14. Which one of the following pairs is correctly matched?

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  15. During protein synthesis , the correct amino acid is brought to the ri...

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  16. Addition of lactose in a culture of E. coli induces enzymes ----------...

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  17. Practice using the dictionary of the genetic code determine the amino ...

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  18. During protein synthesis , the correct amino acid is brought to the ri...

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  19. Which among the following codon do not codes for valine (val)?

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  20. The process of translation requires

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