Production of a human protein in bacteria by genetic engineering is possible because
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Select the two correct statements out of the four (a–d) given below about lac operon. (a) Glucose or galactose may bind with the repressor and inactivate it (b) In the absence of lactose the repressor binds with the operator region (c) The z-gene codes for permease (d) This was elucidated by Francois Jacob and Jacque Monod The correct statement are |
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During transcription, RNA polymerase holoenzyme binds to a gene promoter and assumes a saddle-like structure. What is its DNA-binding sequence? |
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The anti-parallel nature of DNA refers to |
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During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be |
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Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it? |
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Which one of the following is not a part of a transcription unit in DNA? |
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According to the lac-operon concept, which functional unit of the bacterial gene material is responsible for suppressing the activity of the operator gene in the absence of lactose? |
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In the DNA molecule: |
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In a DNA strand the nucleotides are held together by: |
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The reaction, Amino acid + ATP → Aminoacyl-AMP + P–P depicts |
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