7.1 Chromosomes,genes and DNA.pptx

 7.1 Chromosomes, genes and DNA  Success criteria I am able to I am able to I can explain explain that explain that that genes help each chromosomes to determine...

 7.1 Chromosomes, genes and DNA  Success criteria I am able to I am able to I can explain explain that explain that that genes help each chromosomes to determine chromosome are made of an organism’s contains many DNA characteristics genes Chromosomes Nucleus of every cell contains threads called chromosomes Not so obvious when observed under a microscope. Why? Note s  Different species of organism have different numbers of chromosomes. Human cells have 46 chromosomes.  Genes Each chromosome is made up of hundreds of different genes. Each gene helps to control a particular characteristic in the organism. DNA Chromosomes and genes are made of DNA. A DNA molecule is in a double helix shape. Summary