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DNA is made of two chains that twist about one another in the shape of a _______.
  • a)
    Broken ladder
  • b)
    Straight ladder
  • c)
    Straight spiral
  • d)
    Double helix
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
DNA is made of two chains that twist about one another in the shape of...
The double helix describes the appearance of double-stranded DNA, which is composed of two linear strands that run opposite to each other, or anti-parallel, and twist together. Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain. 
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DNA is made of two chains that twist about one another in the shape of...
Community Answer
DNA is made of two chains that twist about one another in the shape of...
The 
twisting
 aspect of 
DNA
 is a result of interactions between the molecules that make up 
DNA
 and water. ... To further prevent the nitrogenous bases from coming into contact with cell fluid, the molecule 
twists
 to reduce space between the nitrogenous bases and the phosphate and sugar strands.
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DNA is made of two chains that twist about one another in the shape of a _______.a)Broken ladderb)Straight ladderc)Straight spirald)Double helixCorrect answer is option 'D'. Can you explain this answer?
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