THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Has a double helix
|
|
|
Has a single helix
|
|
|
Contains uracil
|
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 a double helix formed by base pairs attached to a sugar-phosphate backbone.
Detailed explanation-3: -Which of the following is characteristic of a DNA double helix? The amount of adenine is equal to the amount of thymine, and the amount of guanine is the equal to the amount of cytosine.
Detailed explanation-4: -Answer and Explanation: The correct option: The structure which is not true for a DNA molecule is B. Single-stranded. The structure of a DNA molecule is formed with the combining of two strands to form its characteristic double helix.