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Assertion : Template or antisense strand...

Assertion : Template or antisense strand , having `3' rarr 5'` polarity takes part in transcription.
Reason : Non-template or sense strand, having `5' rarr3'` polarity, does not take part in transcription.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

if both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
b
(b)
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Transcription uses……..as template strand (a) Antisense DNA strand (b) RNA strand

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).

Knowledge Check

  • During transcription the template strand is the one with polarity

    A
    Always 3' to 5' as the template strand
    B
    Always 5' to 3' as the template strand
    C
    Any of the strandard can brcome template strand
    D
    Alternatively both strand work as template strand

  • Assertion :- Both the strands of DNA are not copied during transcription. Reason : Both strands of DNA show antiparallel polarity.

    A
    If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
    B
    If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.
    C
    If Assertion is True but the Reason is Flase.
    D
    If both Assertion & Reason are false.

  • Refer to the given figure and consider the following statements regarding it . I. A is present at the 5' end of the template strand . II. B is antisense strand having 3'rarr5 ' polarity III. C may have AT rich region or palindromic sequence IV. D acts as a non-template strand Select the option with the incorrect pair of Statements .

    A
    I and IV
    B
    II and III
    C
    I and III
    D
    III and IV

    • Similar Questions

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    Assertion : Synthesis of daughter or new srand accurs continuously along the parent 3' rarr 5' strand. Reason:DNA polymerase can polymerise nucleotides in 3' rarr 5' direction on 5' rarr 3' strand.

    Assertion : The transcription and traslation can be coupled in bacteria. Reason : In bacteria transcription and translation take place in the same compartment and also the mRNA does not require any processing to become active

    Assertion (A): The enzyme involved in the continuous replication of DNA strand is DNA polymerase. Reason (R): The polarity of the template strand is 3 to 5' .

    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.

    Given the antisense strand DNA codon 3'TAC5' . The anticodon that pairs with corresponding m-RNA codon could be :

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