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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DNA has equal number of adenine and thymine residues (A = T) and equal number of guanine and cytosine (G = C). These relationships are known as |
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Signaling between cells usually results in the activation of protein |
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Enzyme responsible for reverse transcription is : |
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Balbiani rings are the sites of |
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There are 64 codons in the genetic dictionary as |
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Beadle and Tatum showed that each kind of mutant bread mould they studied lacked a specific enzyme. Their experiments demonstrated that |
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There are ______ subunits that make up a nucleotide? |
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