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Significance of Protein

In polypeptid...

Question

In polypeptide synthesis, amino acids are brought over ribosome-mRNA complex by

A

rRNA

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B

tRNA

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C

DNA

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D

Nucleotides

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Solution

The correct option is B tRNA
In polypeptide synthesis amino acids are brought by tRNA.

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Q. Given below are the steps of protein synthesis. Arrange them in. correct sequence and select the correct option.
(j) Codon-anticodon reaction between mRNA and aminoacyl tRNA complex.
(ii) Attachment of mRNA and smaller sub-unit of ribosome.
(iii) Charging or aminoacylation of tRNA.
(iv) Attachment of larger sub unit of ribosome to the mRNA-tRNAMet complex.
(v) Linking of adjacent amino acids.
(vi) Formation of polypeptide chain.

Q. Which of the following RNAs picks up specific amino acid (from amino acid pool) in the cytoplasm to ribosome during protein synthesis?

Q. The number of nucleotides on the mRNA, ATP utilized, peptide bond formed, translocations and ribosomes required to synthesize a with polypeptide with 500 amino acids

Q. Which mRNA will be translated to a polypeptide chain containing 8 amino acids?

Q. Assertion :Replication and transcription occur in the nucleus but translation in the cytoplasm. Reason: mRNA is transferred from the nucleus into the cytoplasm where ribosomes and amino acids are available for protein synthesis.

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