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Question

DNA, which is also called __________ acid, is the hereditary material that carries genetic information in cells.

The correct answer is

Deoxyribonucleic

DNA stands for Deoxyribonucleic acid. It is a long polymer of nucleotides in which each nucleotide contains the sugar deoxyribose (ribose minus one oxygen at the 2′ position), a phosphate group and one of the nitrogenous bases adenine, guanine, cytosine or thymine.

"Denatured" refers to a protein or nucleic acid that has lost its native structure, not the chemical name of DNA. "Di-ribonucleic" and "Decarbonated" are not real chemical names for any nucleic acid. Only Deoxyribonucleic acid fits the definition of DNA.

Hence, the answer is Deoxyribonucleic.

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Important Questions from Biomolecules

  1. The chemical name of Vitamin D 3is:

  2. Which of the following food comes under complex carbohydrate?

    I. Potatoes

    II. Sweets

    III. Pasta

    IV. Wheat

  3. Following are the pKa's of the ionizable groups in lysine

    pKa 1 = 2.16 (α - carboxylic group)

    pKa 2  = 9.06 (α - amino group)

    pKa 3  =  10.54 (ε - amino group)

    Which one of the following options represents the pl of lysine?

  4. How many hydrogen bonds involving the backbone CO and NH can be observed in an α‐helix consisting of 15 amino acid residues?

  5. In eukaryotic cells, covalently attached lipids help to anchor some water soluble proteins to the plasma membrane. One group of cytosolic proteins are anchored to the cytosolic face of membrane by a fatty acyl group (e.g. myristate or palmitate). These groups are generally covalently attached to which amino acids present at the N‐terminus of the polypeptide chain?

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