Genes, Chromosomes and DNA

Created by: Sharuja1921
Created on: 24-04-17 19:05

Most cells in your body have a nucleus - and it's the nucleus that contains your genetic material.

Nucleus

1 of 8

The genetic material in the nucleus is arranged into chromosomes. The human cell nucleus contains 23 pairs of chromosomes

Chromosomes

2 of 8

Each chromosome is one very long molecule of DNA that's coiled up.

Molecule of DNA

3 of 8

Genes control the development of different characteristics, e.g. hair colour, and how an organism functions. A gene is a short length of a chromosome.

Gene

4 of 8

Genes can exist in different versions. Each version gives a different form of a characteristic, like blue or brown eyes. The different versions os the same gene are called alleles.

Alleles

5 of 8

Genes are instructions for cells

each gene is a code for making a certain protein. Proteins are the building blocks of cells. Having different versions of proteins means that we end up with different characteristics. 1) Some proteins are structural proteins. Rest are functional.

6 of 8

Dimples, eye colour...

Characteristics controlled by genes

7 of 8

Scar, ear piercing...

Environmental factors

8 of 8

Other cards in this set