(a) Draw a schematic representation of the structure of a transcription unit and show the following in it :
(i) Direction in which transcription occurs
(ii) Polarity of the two strands involved
(iii) Template strand
(iv) Terminator gene
(b) Mention the function of promoter gene in transcription.

The presence of which gene in a transcription unit that also defines the template and coding strands

(a) Write the RNA strand transcribed from the above transcription unit along with its polarity. (b) Construct a complete transcription unit with promotor and terminator on the basis of the hypothetical template strand given below :

Read the following statement (A) AUG has dual functions (B) any reference while defining a transcription unit is made with polarity of coding strand

Write the help of a schematic diagram the location and the role of the following in a transcription unit : Promoter, Structural gene, Terminator.

Differentiate between the following : (i) Leading strand and lagging strand (ii) Prokaryotic DNA and eukaryotic DNA (iii) DNA and RNA (iv) Replication and transcription

Read the following statements carefully and choose the correct statements. A. In a transcription unit, the promoter located at the 5' end of coding strand B. The single strand DNA having the polarity 5' rarr 3' is the template strand C. RNA polymerase binds to the operator during transcription. D. Single base DNA differences occur in humans are called Single Nucleotide Polymorphism (SNPs).

a) Construct a complete transcription unit with promoter and terminator on the basis of hypothetical template strand given below (b) Write the RNA strand transcribed from the above transcription unit along with its polarity

(a) Construct a complete transcription unit with promoter and terminator on the basis of the hypothetical template strand given below : (b) Write the RNA strand transcribed from the above transcription unit along with its polarity.

Select the correct statements regarding the process of transcription in eukaryotes. (i) The strand of dsDNA which takes part in transcription process is called as coding strand. (ii) The enzyme RNA polymerase can catalyse polymerisation only in one direction i.e. , 5' rarr 3' . (iii) An unusual nucleotide methyl guanosine triphosphate is added to the 5' end of hnRNA during capping. (iv) During tailing process, adenylate residues (200-300) are added at 3' end in a template independent manner.

With respect to lac- operon explain the following terms:- i) regulator gene ii) promoter gene iii) structural gene iv) inducer