Reproduction and Meiosis

Asexual Reproduction

Budding in Yeast Cells

• Yeast are single-celled microorganisms and are a type of fungi. Yeast cells are eukaryotic. 
• Reproduces asexually. 
• They are gentically identical.

• 1. The parent yeast cell swells on one side, forming a bud at the surface of the cell.
• 2. The cell undergoes interphase - the DNA and organelles are replicated ready for the cell to divide. 
• 3. The cell begins to undergo mitosis - the replicated DNA, cytoplasm and organelles move into the bud. 
• 4. Nuclear division is complete - the budding cell contains a nucleus that has an identical copy of the parent cells' DNA. 
• 5. Cytokinesis occurs and the bud pinches off from the parent cell, producing a new, genetically identical yeast cell. 

Sexual Reproduction

• Gametes are the sperm cells in males and egg cells in females. In sexual reproduction two gametes join together and a fertilisation to form a zygote occurs, which divides and develops into a new organism. 
• Normal body cells have the diploid number (2n) of…