(i) Name the enzyme that catalyses the transcription of hnRNA.
(ii) Why does the hnRNA need to undergo changes ? List the changes hnRNA undergoes and where in the cell such changes take place.

(i) Name the enzyme that catalysis the transcription of hnRNA. (ii) Why does the hnRNA need to undergo changes? (iii) List the changes hnRNA undergoes and where in the cell such changes take place?

Why hnRNA is required to undergo splicing?

Why hnRNA is required to undergo splicing?

Why does hnRNA to undergo splicing ? Where does splicing occur in the cell ?

(a) Describe the process of transcription in bacteria. (b) Explain the processing the hnRNA needs to undergo before becoming functional mRNA in eukaryotes.

(a) Describe the process of transcription in bacteria. (b) Explain the processing the hnRNA needs to undergo before becoming functional mRNA in eukaryotes.

Mention the two addition processing which hnRNA needs to undergo after splicing so as to become functional.

How does energy change take place in a physical change? Explain.

Name the types of cells and the process by which hnRNA is formed. Describe the processing mechanism it undergoes before it becomes functional.

Three persons A, B and C apply for a job of Manager in a Private Company. Chances of their selection (A, B and C) are in the ratio 1 : 2 : 4. The probabilities that A, B and C can introduce changes to improve profits of the company are 0.8, 0.5 and 0.3 respectively. If the change does not take place, find the probability that it is due to the appointment of C.