Q. How many bases of nucleic acid determine a single amino acid?

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Q. The lac operon contains the z, y and a structural genes

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Q. Proteins contain __________ different amino acids, whereas DNA and RNA are composed of __________ different nucleotides

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Q. Which of the following is not necessary for protein synthesis to occur, once transcription is completed?

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Q. Ribosomes select the correct tRNAs

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Q. Signal peptide protein removal that is translocated across a membrane is accomplished by

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Q. Amino acids are joined together into a protein chain by which of the following?

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Q. Phosphorus is taken up by the cell during the process of

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Q. Protein synthesis rates in prokaryotes are limited by the rate of mRNA synthesis. If RNA synthesis occurs at the rate of 50 nucleotides/sec, then rate of protein synthesis occurs at

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Q. The site of protein synthesis is

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Q. The structure in a bacterium that indicates an active site for protein synthesis is

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Q. The lowest level of chromosome organization is

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Q. Number of autosomes in humans is

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Q. What proportion of the human genome is made up of repetitive DNA sequences?

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Q. The extra chromosomal, self-replicating, double stranded, closed, circular DNA molecules are called

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Q. Which out of the following statements is true about human genome?

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Q. Which of the following is false about introns?

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Q. Which of the two organelles contain their own DNA and ribosomes?

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Q. About what proportion of mitochondrial proteins are encoded by nuclear DNA?

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Q. Short interspersed elements are about

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