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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
______ enzymes are used as biological scissors in r-DNA technology.
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Explain the process of DNA replication.
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Enlist the names of enzymes used in semiconservative replication of DNA?
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Which of the following statements is not true about DNA replication in eukaryotes?
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Meselson and Stahl used ____________ in the experiment to prove semiconservative DNA replication.
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.
Enzyme ______ brings about the DNA unwinding by breaking weak hydrogen bonds in the vicinity of origin.
"DNA is considered as genetic material" - Why?
Extension of the plasma membrane in a prokaryotic cell is ______.
Identify the biomolecule that is capable of self-replication.
Select the incorrect statement regarding DNA replication.
Which of the following DNA polymerase enzyme in eukaryotes has 5' -3' exonuclease activity?
The sequence of nitrogenous bases on DNA molecule is ATCGA. Which of the following is the correct complementary sequence of nitrogenous bases on mRNA molecule?
Enzyme involved in synthesis of RNA primer.
