THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Single Helix
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Double Helix
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Single Spiral
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Double Spiral
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Detailed explanation-1: -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. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
Detailed explanation-2: -DNA is made of two linked strands that wind around each other to resemble a twisted ladder-a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G) or thymine (T).
Detailed explanation-3: -DNA is a double helix formed by base pairs attached to a sugar-phosphate backbone.
Detailed explanation-4: -The correct answer is (A): a double helix. DNA is a nucleic acid that consists of two complementary nucleotide strands that are held together via hydrogen bonds. These two strands form a helical structure; hence, DNA is often referred to as the double helix.