Asexual and Sexual Reproduction Hydra Asexual and Sexual Reproduction

Asexual Reproduction Some organisms such as yeast and bacteria and most body cells (mitosis) reproduce asexually.

Asexual Reproduction First it copies its DNA Then it divides in half, forming two cells Each cell gets an exact copy of DNA The DNA is still IDENTICAL to the first cell after several divisions.

Sexual Reproduction Organisms that have a male and female reproduce sexually The offspring is a mix of parents, ½ of the genes from each parent so it is not a duplicate

Advantages and Disadvantages Advantages of sexual reproduction: Genetic diversity Advantages of asexual reproduction: Takes less time and requires only one parent. Disadvantages of sexual reproduction: Takes more time and requires two parents. Disadvantages of asexual reproduction: No genetic diversity

Examples of Sexual Reproduction Pollination - process where pollen is transferred in plants to enable sexual reproduction. **wind, rain, insects, animals Why would a flower be brightly colored? Fertilization – the union of a sperm and egg cell

Types of Asexual Reproduction Binary Fission – a single celled organisms divides to make two new cells. Budding – offspring grows out of the body of the parent – like a hydra Regeneration – a piece of a parent is detached and grows into a new organism Runners – above ground stems and new stems grow from this – strawberry Tubers – underground stem that can produce new plant - eye from potato