1. In protein structure, an ? helix would comprise: A. Primary structure B. Seco

Question

1. In protein structure, an ? helix would comprise:

A. Primary structure B. Secondary structure C. Tertiary structure D. Quaternary structure

2. Beadle and Tatum proposed the hypothesis of ‘one gene: one enzyme.’ This has now been revised to ‘one gene: one polypeptide’ because:

A. Not all proteins are enzymes B. Not all enzymes are proteins C. Not all proteins are from polypeptides D. Not all polypeptides are from genes

3. Hemoglobin is:

A. A protein with quaternary structure B. A protein that carries oxygen in the blood C. Changed drastically by a substitution of a single nucleotide D. All of the above

4. RNA Polymerase is required for:

A. Replication B. Transcription C. Transcription and Translation D. Replication and Transcription

Explanation / Answer

1. B. secondary structure

2. A. not all proteins are enzymes

3. D. all are correct

4. B. transcription.

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