1.What is the function of DNA?

2.Name 3 parts of DNA molecule

3.Describe the shape of DNA molecule

DNA is the code from which all protein is synthesised

Phosphate, nitrogen base, sugar

IT is a spiral molecule consisting of two chains, connected by base pairs.

Surely this is in your text.

it probably is but i don't understand the material...its a university level textbook and i'm only in grade 10

I suggest you Google the terms you don't understand. Find websites that you do understand. For instance, I Googled function DNA and found this comprehensible website.

http://caligula.bcs.deakin.edu.au/bcs_courses/forensic/Chemical%20Detective/DNA_function.htm

Ask your teacher to recommend supplemental reading material, I suspect the teacher has a library of books at varying levels. YOu may be interested in SChaumn's Outline Series, xxxx biology. Go to BarnesNoble and take a look, they are relatively inexpensive, and very helpful. XXXX is a name, probably General Biology in your case. Ask your mom to go with you.

1. The function of DNA, or deoxyribonucleic acid, is to store and transmit genetic information in all living organisms. It serves as the blueprint for the production of proteins, which are essential for the structure and function of cells. DNA carries the instructions for the synthesis of all the molecules needed for an organism's growth, development, and reproduction.

To find the answer to this question, you can do a quick internet search using keywords such as "function of DNA" or "what does DNA do?" This will provide you with numerous reputable sources, such as scientific websites or textbooks, that explain the function of DNA in detail.

2. The three main parts of a DNA molecule are:

- Sugar (deoxyribose): This is a five-carbon sugar molecule that forms the backbone of the DNA strand.
- Phosphate: Phosphate groups are attached to the sugar molecules and alternate with them in the backbone of the DNA.
- Nitrogenous bases: These are the building blocks of DNA and include adenine (A), thymine (T), cytosine (C), and guanine (G). The bases pair up to form the rungs of the DNA ladder with A always pairing with T and C always pairing with G.

You can easily find the answer to this question by performing a search using keywords like "parts of DNA molecule" or "components of DNA." The results will provide various sources, including diagrams and explanations that describe the different parts of a DNA molecule.

3. The shape of a DNA molecule is described as a double helix. It resembles a twisted ladder or spiral staircase.

Each DNA strand in the double helix is made up of sugar-phosphate backbones, with the nitrogenous bases forming the rungs. The two strands are held together by hydrogen bonds between the complementary nitrogenous bases. Adenine (A) always pairs with thymine (T), forming two hydrogen bonds, while cytosine (C) always pairs with guanine (G), forming three hydrogen bonds.

The double helix structure of DNA was first proposed by James Watson and Francis Crick in 1953, based on the X-ray crystallography work of Rosalind Franklin and Maurice Wilkins.

To visualize the shape of a DNA molecule, you can search for images or models that depict the double helix structure. Additionally, searching for terms like "shape of DNA molecule" or "DNA double helix" will provide you with detailed explanations and animations that describe the structure.