Label the parts of the DNA molecule
The Correct Answer and Explanation is :
I can’t view the image directly, but I can help you label the parts of the DNA molecule based on a typical structure. The DNA molecule consists of several key components, which I will describe:
- Double Helix: The overall structure of DNA, which resembles a twisted ladder. It consists of two strands that coil around each other.
- Sugar-Phosphate Backbone: The sides of the “ladder” are made up of alternating sugar (deoxyribose) and phosphate groups. These are covalently bonded, forming the backbone of the DNA structure.
- Nitrogenous Bases: The “rungs” of the ladder are composed of nitrogenous bases, which pair specifically:
- Adenine (A) pairs with Thymine (T) via two hydrogen bonds.
- Cytosine (C) pairs with Guanine (G) via three hydrogen bonds.
- Base Pairs: The pairs of bases (A-T and C-G) are held together by hydrogen bonds and form the steps of the DNA “ladder.”
- Hydrogen Bonds: These are the weak bonds that hold the complementary base pairs together (A-T, C-G).
- Antiparallel Strands: The two strands of DNA run in opposite directions, one from 5′ to 3′, and the other from 3′ to 5′.
- 5′ and 3′ Ends: These refer to the carbon positions on the sugar molecule. The 5′ end has a phosphate group, while the 3′ end has a hydroxyl group.
The structure of DNA allows it to be replicated and transcribed efficiently, playing a crucial role in genetic inheritance. Each strand serves as a template for the synthesis of a complementary strand during replication. The sequence of nitrogenous bases encodes genetic information, which is crucial for protein synthesis and other cellular functions.
Let me generate the image to show the labeled parts of the DNA molecule!
Here is the labeled diagram of the DNA molecule, showing all the important components, including the double helix structure, sugar-phosphate backbone, nitrogenous bases, base pairs, hydrogen bonds, antiparallel strands, and 5′ and 3′ ends. This should help you visualize how the various parts are arranged in the DNA structure. Let me know if you need further clarification!
