chromosomes - genes and variation
- Created by: tia5sos
- Created on: 10-11-20 17:05
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- genes and variation
- chromosomes are really long molecules of DNA
- the genome is the entire genetic material of an organism
- the genetic material is stored in the nucleus and is arranged into chromosomes
- each chromosome is one very long molecule of DNA that's coiled up
- a gene is a short length of a chromosome
- genes - each of your chromosomes contains thousands of genes. Each gene is a small length of DNA and controls a different characteristic, by coding for different proteins.
- Genes determine the production of proteins. The sequence of bases in the gene determines the type of protein which is produced.
- The production of different proteins controls teh development of different characteristics, e.g. dimples, and how a organism functions.
- genes can exist in different versions. Each version gives a different form of a characteristic, like blue or brown eyes. The different versions of the same gene are called alleles or variants.
- chromosomes are really long molecules of DNA
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