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Download Cell division - Pukekohe High School
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Inside the nucleus 1. The nucleus of a cell contains chromosomes. 2. Chromosomes carry genes. 3. Genes code for proteins. 4. Genes are made from DNA. Inside the nucleus Inside the nucleus Chromosomes Mitosis 1. Mitosis is a form of cell division which produces exact copies of cells. 2. Each daughter cell has the diploid number of chromosomes. Mitosis Mitosis Mitosis Meiosis 1. Meiosis is a form of cell division which produces sex cells (e.g. sperm or egg cells). 2. Each daughter cell has the haploid number of chromosomes. Meiosis Meiosis Meiosis Mitosis and Meiosis DNA 1. DNA contains coded information that determines inherited characteristics 2. DNA strands are made from sugar, phosphate and bases 3. There are four bases – A, C, T and G 4. DNA can replicate because base A and T always pair and C and G always pair. 5. 3 bases code for one amino acid Nucleotides DNA DNA replication DNA bases Fertilisation 1. Gametes are sex cells (e.g. sperm or egg cells) 2. When male and female gametes join in fertilisation, a zygote is formed. Fertilisation Fertilisation Fertilisation Fertilisation Wordsearch Quiz
