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WorksheetsTRANSCRIPTION
Total questions: 10
Worksheet time: 6mins
Transcription is
formation of DNA over the existing template DNA strand
formation of RNA from another RNA strand
formation of DNA from template RNA
formation of RNA over template DNA
Find the incorrect statement about Transcription
Both the strands do not take part in transcription
single stranded RNA is formed having coded information
DNA strand which act as template for RNA synthesis is called antisense strand
DNA template strand has 5'-3' polarity
If both the strands of DNA transcribes, then what will not happen?
They may form two RNA strand complimentary to each other
Two RNA strands may form double stranded structure and may replace the DNA
They may synthesise two kinds of proteins
The two proteins may have antagonistic effects
This diagram represents a TRANSCRIPTION unit. Select the correct labelling.
A- Terminator
B- Promoter
C- Template Strand
D- Coding Strand
A- Promoter
B- Terminator
C- Coding Strand
D- Template Strand
A- Terminator
B- Promoter
C- Coding Strand
D- Template Strand
A- Promoter
B- Terminator
C- Template Strand
D- Coding Strand
An Eukaryotic promoter has four parts. They are
a) Initiator
b) Promoter
c) Sigma factor
Rho factor
a) Prinbow box
b) TFIIB Recognition site
c) initiator
d) promoter
a) TATA box
b) TFIIB Recognition site
c) initiator
d) promoter
a) Initiator
b) Promoter
c) Template strand
d) Coding Strand
DNA polymerase and RNA Polymerase differ in several ways. Which of the following statements do you think is incorrect?
a) DNA Polymerase takes part in replication whereas the other take part in transcription
b) The former acts on both strands of DNA while the later acts on only template strand of DNA
c) The former do not require a primer while the later requires a primer
d) Former do not perform proof reading while the later does
a and b
b and c
c and d
a and d
Read the statements about RNA polymerase enzyme. One statement is incorrect. Find it.
Prokaryotic RNA Polymerase is a 5 subunit complex
It has a rho factor for recognising the start signal of promoter region
Core enzyme consists of 2 alpha subunits
It takes part in transcription
Which of the following do not occur in Prokaryotic transcription?
There is one polymerase
A transcription unit commonly has more than one gene
Splicing is required
Transcription is generally coupled with translation
Read the statements about Eukaryotic transcription and find the correct statements.
a) A transcription unit generally has a single gene
b) Splicing is not required
c) There are distinct transcription factors. Sigma factor is absent
d) Transcription is coupled with translation
a and b
b and c
c and d
a and c
Study the diagram carefully. Find the statement which is false.
D- Messenger RNA is formed
C- Polyadenylation
A - Exon
B- Intron
Exons are removed to form functional mRNA
