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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One strand of the DNA ladder is inherited from each parent
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the sugars and phosphates that make up the sides of the ladder are curved to conserve space inside the cell
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The double helix structure is just a random occurrence with no specific purpose
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the pattern of complementary bases on each side of the DNA ladder ensures that exact copies of the DNA are made during replication
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Detailed explanation-1: -What purpose does the double helix structure serve? The double helix shows that one strand of the DNA ladder is inherited from each parent. The sugars and phosphates that make up the sides of teh DNA ladder twist and curve to conserve space in the cell.
Detailed explanation-2: -Double helix, as related to genomics, is a term used to describe the physical structure of DNA. A DNA molecule is made up of two linked strands that wind around each other to resemble a twisted ladder in a helix-like shape.
Detailed explanation-3: -To avoid bumping into each other, the staircase has to twist a little bit. This turns our staircase into a spiral staircase. This extra twist at the end is the reason for the helical shape. For the “steps” of the DNA “staircase” to fit together, they have to twist a little bit, making the final spiral shape of DNA.
Detailed explanation-4: -The double-helix shape allows for DNA replication and protein synthesis to occur. In these processes, the twisted DNA unwinds and opens to allow a copy of the DNA to be made. In DNA replication, the double helix unwinds and each separated strand is used to synthesize a new strand.