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प्रश्न
Which of the following statements about DNA replication is not correct?
विकल्प
Unwinding of DNA molecule occurs as hydrogen bonds break.
Replication occurs as each base is paired with another exactly like it.
Process is known as semi conservative replication because one old strand is conserved in the new molecule.
Complementary base pairs are held together with hydrogen bonds.
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उत्तर
Replication occurs as each base is paired with another exactly like it.
Explanation:
DNA replication does not pair identical bases together; instead, it follows the rule of complementary base pairing. This means an Adenine (A) on the original strand always pairs with a Thymine (T) on the new strand, and a Guanine (G) always pairs with a Cytosine (C). The other statements are correct: the double helix must unwind by breaking hydrogen bonds, the process is semiconservative since each new molecule keeps one original strand, and hydrogen bonds are indeed what hold the new base pairs together.
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संबंधित प्रश्न
What is the function of an RNA primer during protein synthesis?
Describe the process of semiconservative replication of DNA with the help of a neat and labelled diagram.
Differentiate between Leading stand and lagging strand.
Read the following statements and select the correct option.
i. The unit of DNA in which replication occurs, is called replicon.
ii. In eukaryotes, there is only one replicon however in prokaryotes there are several replicons in tandem.
Complementary strands of DNA molecule are (i) and bound by (ii).
When DNA directs the synthesis of chemical molecules other than itself, then such functions of DNA are known as ______.
Which one of the following correctly represents the manner of replication of DNA?
Which of the following is the function of single-strand binding proteins?
Read the following statements and select the correct option.
Statement I: DNA replication is continuous on leading strand while on the lagging strand it is discontinuous.
Statement II: DNA polymerase cannot initialize polymerization without a primer.
The addition of nucleotides on the lagging strand occurs ____________ during DNA replication.
______ carbon atoms of successive nucleotides of nucleic acid are linked by Phospho-diester bond.
In a segment of DNA with 10 base pairs, the numbers of sugar molecules are _________.
In DNA molecule, pairing between two complementary nucleotides takes place by ________ bonds.
When the DNA molecule appears like inverted Y, it is ______
Okazaki is known for his contribution to the under tanding of:
Identify the biomolecule that is capable of self-replication.
In viral DNA, how many origins of replication is/are present?
Select the incorrect statement regarding DNA replication.
Enzyme involved in synthesis of RNA primer.
