BBC - GCSE Bitesize: DNA, genes and chromosomes
Your genes are part of what makes you the person you are. You are different from everyone alive now and everyone who has ever lived. DNA. But your genes. Genes. A gene is a short section of DNA. Each gene codes for a specific protein by The diagram shows the relationship between the cell, its nucleus. Find information, videos, and activities about DNA, genes, chromosomes, the Experiment with the forces involved and measure the relationship between the.
The other chapters may contain other details like where the cells should start producing new proteins etc.
- Difference Between DNA and Genes
- DNA, genes and chromosomes
- How are DNA, chromosomes, genes, and alleles related?
The DNA is like an instruction booklet that determines the traits you are likely to get. The entire DNA in a human body is packaged in the form of chromosomes. Each of these chromosomes has definite characters that will determine a particular trait.
This includes such details like your hair color and the color of your eyes. Each of these chapters that contain the codes for a particular trait is known as a gene.
How are DNA chromosomes and genes related?
So, if you are confused, just think about the gene as a small piece of the total DNA that holds information about a particular trait you have. The study of genetics has gained widespread acclaim in recent times.
However, it was only with the discovery of the DNA that a scientific basis for the genes we inherit was established. Both DNA and genes are the most basic building blocks of your body. They determine how your cells are going to behave throughout your life. Now you know who to thank for those brains! Genes are a part of the DNA. Genes determine the traits you will inherit from your parents, DNA determines a lot more.
Genes are made of a chemical called DNA, which is short for 'deoxyribonucleic acid'. The DNA molecule is a double helix: The DNA double helix showing base pairs The sides are sugar and phosphate molecules. The rungs are pairs of chemicals called 'nitrogenous bases', or 'bases' for short. There are four types of base: These bases link in a very specific way: A always pairs with T, and C always pairs with G.
The DNA molecule has two important properties.
DNA, genes and chromosomes — University of Leicester
It can make copies of itself. If you pull the two strands apart, each can be used to make the other one and a new DNA molecule.
It can carry information. The order of the bases along a strand is a code - a code for making proteins.
How are DNA, chromosomes, genes, and alleles related? | Socratic
Genes A gene is a length of DNA that codes for a specific protein. So, for example, one gene will code for the protein insulin, which is important role in helping your body to control the amount of sugar in your blood. Genes are the basic unit of genetics. Human beings have 20, to 25, genes.
These genes account for only about 3 per cent of our DNA. The function of the remaining 97 per cent is still not clear, although scientists think it may have something to do with controlling the genes.