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mRNA overset(AUG UUU AUG C CU GUU UCU UA...

`mRNA overset(AUG UUU AUG C CU GUU UCU UA A)to`
Polypeptide Met-Phe-Met-Pro-Val-Ser
Nucleotide sequence of the DNA strand from which this mRNA was transcribed is

A

TAC A A A TAC GGA C A A AGA ATT

B

AUG UUU AUG C CU GUU UCU U A A

C

UAC A A A UAC G GA C A A AGA AUU

D

ATG TTT ATG C CT GTT TCT TA A

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The correct Answer is:
a
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mRNA overset(AUG UUU AUG C CU GUU UCU UA A)to Polypeptide Met-Phe-Met-Pro-Val-Ser Which codons respectively code for proline and valine amino acids in the given polypeptide chain, respectively ?

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Read the sequence of the nucleotides in the given segment of mRNA and the respective amino acid sequence in the polypeptide chain. Polypeptide: met-phe-met-pro-val-ser What does the last codon of this RNA stand for?

Which of these statements about protein synthesis are NOT correct ? I. During transcription, mRNA synthesized from DNA nucleotides to have the same sequence of nucleotides as the DNA strand on which it was made. II. During transcription , tRNA is synthesized from RNA nucleotides and carries codons that are complementary to the sequence of nucleotides on the DNA strand on which it was made. III. During translation, mRNA is synthesized from RNA nucleotides to have the complementary sequence of nucleotides to that. Of the DNA strand on which it was made . IV. During translation ribosomes move on mRNA from '5' and '3' one codon at a time .This is called translocation

In the following diagram the two DNA strands represented are ready for transcription (i) Label the parts marked 1 to 4 (ii) Which one of the two strands of DNA has nucleotide sequence similar to the mRNA that will be transcribed and why ?

Read the sequence of the nucleotides in the given segment of mRNA and the respective amino acid sequence in the polypeptide chain. Polypeptide: met-phe-met-pro-val-ser Provide the triplet of bases (codon) for (i) valine (ii) proline.

Identify the sequence of mRNA from the given sequence of coding strand of DNA. 5' T A C G T A G 3'

Identify giving reasons, the salient features of genetic code by studying the following nucleotide sequence of mRNA strand and the polypeptide chain translated from it. AUG UUU UCU UUU UUU UCU UAG Met- Phe- Ser- Phe- Phe- Ser.

In the following diagram the two DNA strands represented are ready for transcription. Which one of the two strands of DNA has nucleotide sequence similar to mRNA that will be transcribed and why?

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.

NCERT FINGERTIPS ENGLISH-MOLECULAR BASIS OF INHERITANCE-Molecular Basis Of Inheritance
  1. Match column I and II and select the correct option from the given cod...

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  2. Amino acids which are specified by single codons are

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  3. mRNA overset(AUG UUU AUG C CU GUU UCU UA A)to Polypeptide Met-Phe-Me...

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  4. mRNA overset(AUG UUU AUG C CU GUU UCU UA A)to Polypeptide Met-Phe-Me...

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  5. Which out of the following statement is incorrect ?

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  6. Some amino acids are coded by more than one codon, hence the genetic c...

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  7. Read the following statements. (i) One codon codes for only one amin...

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  8. The mutations that involve addition, deletion or substitution of a sin...

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  9. Sickle cell anemia results from a single base substitution in a gene, ...

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  10. Select the incorrect matched pair.

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  11. Identify the labels A, B, C and D in the given structure of tRNA and s...

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  12. The differences between mRNA amd tRNA are that mRNA has more elabor...

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  13. Amino acid acceptor end of tRNA lies at

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  14. Which RNA carries the amino acids from the amino acid pool to mRNA dur...

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  15. During translation , activated amino acids get linked to tRNA. This pr...

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  16. Refer to the given mRNA segment It can be translated completely in...

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  17. In a mRNA molecule, untranslated regions (UTRs) are present at

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  18. UTRs are the untranslated regions present on

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  19. Given below are the steps of protein synthesis. Arrange them in correc...

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  20. Refer to the given figure Select the option which identifies pola...

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