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Given below is the sequence of processed...

Given below is the sequence of processed mRNA ready for translation:
5-AUG CUA UAC CCU CUU UAU CUG AGA-3'
How many amino acid residues will make the up polypeptide corresponding to this mRNA?

A

7

B

8

C

6

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
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Given below is the sequence of processed mRNA ready for translation: 5-AUG CUA UAC CCU CUU UAU CUG AGA-3' How many different tRNA molecules would be necessary to translate this mRNA?

The given nucleotide sequence on mRNA is as shown below : 5' AUGUCAUGGGAGUGAGUUGGGCUAAAAUAG 3' (A) How many amino acids will be inserted in a polypeptide chain under normal conditions? (B) How many amino acids will be inserted in a polypeptide chain in a mutated situation by the deletion of 9th nucleotide in the cistron part of DNA ?

How many amino acids will be coded by the mRNA sequence - 5 C C C U C A U A G U C A U A C 3' if a adenosine residue is inserted after 12^(th) nucleotide ?

How many amino acids can be coded by the sequence if the 14^(th) base of given mRNA converts to G? 5' AUG UUU CUC UAG CCG 3'

3, AAA TGC GCG ATA 5' is the sequence of nucleotides on a gene after transcription the mRNA formed against it and the sequence of bases in the corresponding binding anticondons will be (a) UUU ACG CGC UAU and AAA UGC GCG AUA (b) UAU CGC GCA UUU and AUA GCG CGU AAA (c) UUU ACC TUG UAU and AAA UGG UAC AUA (d) UAU GUT CCA UUU and AUA CAU GGU AAA

If the sequence of the coding strand in a transcription unit is as follows: 5-ATGCCTAGGTCCAGGCAT-3 Write down the sequence of mRNA. Write down the anticodon for each code and their corresponding amino acids

(a) Study the table given below and identify (i), (ii), (iii) and (iv) {:("Amino acid","Phe","Val"),("DNA Code in Gene","AAA","CAC"),("Codon in mRNA",(i),(ii)),("Anticodon in tRNA",(iii),(iv)):} (b) A polypeptide consists of 14 different amino acids. (i) How many base pairs must be there in the processed mRNA that codes for this polypeptide? (ii) How many different types of tRNA are needed for the synthesis of this polypeptide ?

A small stretch of DNA strand that codes for a polypeptide is shown below: 3' -- ----- CAT CAT AGA TGA AAC --- --- -- 5' (a) Which type of mutation could have occurred in each type resulting in the following mistake during replication of the above original sequence ? i. 3' ..... ... ... CAT CAT AGA TGA ATC... .... .. 5' ii. 3' ... ... ...CAT ATA GAT GAA AC..... .... ..5' (b) How many amino acids will be translated from each of the above strands (i) and (ii) ?

A DNA sequence undergoes three subsequent point mutations which result in subsequent changes in transcription of mRNA as shown below: Original mRNA : AUG CAU CUC ACG GAU UAG Point mutation 1: AUG CAU CUU ACG GUA UAG Point mutation 2 : AUG CAU GCU UAC - GGU AUA Point mutation 3 : AUG CAU GCU UAA GGU AUA select the correct sequence of point mutations that occurred in the DNA.

A DNA sequence undergoes three subsequent point mutations which result in subsequent changes in the transcription of mRNA as shown below : Original mRNA : AUG CAU CUC ACG GAU UAG Point mutation 1 : AUG CAU CUU ACG GAU UAG point mutation 2 : AUG CAG GCU UAC GGU AUA point mutation 3 : AUG CAU GCU UAA GGU AUA Select the correct sequence of point mutations that occurred in DNA.

ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. Which one of the following pairs is correctly matched with regard to ...

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  2. A strand of DNA has following base sequence 3'-AAAAGTGACTAGTGA-5' On t...

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  3. Given below is the sequence of processed mRNA ready for translation: ...

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  4. Protein synthesis in an animal cell occurs

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  5. Which one of the following statements is true for protein synthesis ( ...

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  6. The drug streptomycin inhibits the process of

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  7. Translation is a process in which :

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  8. In a polypeptide chain of 125 amino acids, if the 25^(th) amino acid i...

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  9. The first codon discovered by Nirenberg and Matthei was :

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  10. Which of the following is not correct about translation

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  11. Amino acid is carried by tRNA at its

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  12. Arrangement of three successive bases in the genetic code codes for :

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  13. Out of 64 codons, 61 codons code for 20 types of amino acid. This char...

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  14. Anticodons are found in

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  15. One gene - one enzyme hypothesis was poslulated by

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  16. How many ATP and GTP molecules are required respectively for incorpor...

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  17. play structural and catalytic role during translation.

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  18. Transfer of genetic information from a polymer of nucleotides to a pol...

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  19. Translation refers to the process of -

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  20. Khorana & his collegeous synthesized an RNA molecule with repeating se...

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