THE MOLECULAR BASIS OF INHERITANCE
DNA REPLICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nucleotides are added to complimentary strands
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Breaking the weak hydrogen bonds
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creating two semi-conservative strands
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copying DNA
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Detailed explanation-1: -The first step in DNA replication is to ‘unzip’ the double helix structure of the DNA? molecule. This is carried out by an enzyme? called helicase which breaks the hydrogen bonds? holding the complementary? bases? of DNA together (A with T, C with G).
Detailed explanation-2: -Key enzyme involved in DNA replication, it is responsible for ‘unzipping’ the double helix structure by breaking the hydrogen bonds between bases on opposite strands of the DNA molecule.
Detailed explanation-3: -DNA replication Special molecules break the weak hydrogen bonds between bases, which are holding the two strands together.
Detailed explanation-4: -Hydrogen bonds between the DNA strands are broken by enzyme helicase, which unwinds the strands that terminate at the replication fork. Hydrogen bonds are formed between the nitrogenous bases of the DNA strands, which holds them and form a double stranded DNA structure.
Detailed explanation-5: -Weak hydrogen bonds hold together the two strands of DNA to form a double helix. These hydrogen bonds are formed between the nitrogenous bases. Two hydrogen bonds can form between thymine and adenine while three hydrogen bonds can form between guanine and cytosine.