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.
- 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…