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Class 12th Biology || Menu
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  • Reproduction in Organisms
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Transcription, Genetic Code and Types of RNA, Class 12 Biology NCERT Solutions

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. Removal of the introns and joining of the exons in a defined order in a transcription unit is called
 
 
 
 

Question 1 of 10

2. During transcription, the DNA site at which RNA polymerase binds is called
 
 
 
 

Question 2 of 10

3. The coding segment of DNA is
 
 
 
 

Question 3 of 10

4. Some amino acids are coded by more than one codon; hence, the code is
 
 
 
 

Question 4 of 10

5. Out of 64 codons, the number of codons with GGG is
 
 
 
 

Question 5 of 10

6. Control of gene expression takes place at the level of
 
 
 
 

Question 6 of 10

7. The amino acid attaches to the tRNA at its
 
 
 
 

Question 7 of 10

8. The portion of DNA which contains information for an entire polypeptide is called
 
 
 
 

Question 8 of 10

9. Which of the following steps in transcription is catalysed by RNA polymerase?
 
 
 
 

Question 9 of 10

10. DNA element with the ability to change its position is called
 
 
 
 

Question 10 of 10

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