Asexual Asexual & &

Sexual Sexual ReproductionReproduction

Asexual Asexual ReproductionReproduction Type of reproduction in which Type of reproduction in which

a new organism is produced a new organism is produced from from ONEONE parent and the parent and the offspring is offspring is identicalidentical to the to the parent.parent.

Occurs in most plants, Occurs in most plants, bacteria, protists, and low bacteria, protists, and low invertebrates.invertebrates.

Asexual Asexual ReproductionReproduction One parentOne parent Offspring Offspring

are identical are identical to the parents.to the parents. One

Parent

Identical Offspring

Asexual Asexual ReproductionReproduction Advantages and Disadvantages of Advantages and Disadvantages of

Asexual ReproductionAsexual Reproduction Advantages – Identical to parent, Advantages – Identical to parent,

so will get all so will get all goodgood characteristicscharacteristics.. Disadvantages – Identical to Disadvantages – Identical to

parent, so will also get bad parent, so will also get bad characteristics and is less able to characteristics and is less able to adapadapt to the t to the environmentenvironment..

Asexual Asexual ReproductionReproduction Types of Asexual Types of Asexual

ReproductionReproduction RegenerationRegeneration – organism uses – organism uses

cell division to cell division to re-growre-grow body body parts.parts. Example: starfish, salamanderExample: starfish, salamander

Asexual Asexual ReproductionReproduction Types of Asexual Types of Asexual

ReproductionReproduction VegetativeVegetative PropagationPropagation – results in – results in

a new plant that is genetically a new plant that is genetically identicalidentical to the parent plant (a to the parent plant (a clone).clone). Examples: strawberry plant, Examples: strawberry plant,

vegetables, and crops.vegetables, and crops.

Asexual Asexual ReproductionReproduction Types of Asexual Types of Asexual

ReproductionReproduction BuddingBudding – organism that produces – organism that produces

a bud that a bud that breaksbreaks awayaway to live on to live on its own.its own. Example: hydraExample: hydra

Asexual Asexual ReproductionReproduction Types of Asexual ReproductionTypes of Asexual Reproduction

BinaryBinary FissionFission – used by – used by bacteria, an organism bacteria, an organism whose cells do not whose cells do not contain a nucleus contain a nucleus copycopy then then dividedivide into two into two identical organismsidentical organisms Example: bacteriaExample: bacteria

Sexual Sexual ReproductionReproduction TwoTwo parents parents Offspring are Offspring are

a a combinationcombination of of bothboth parents parents and are and are therefore therefore differentdifferent from each parent.from each parent.

unique / diverse offspring

Two Parents

Sexual Sexual ReproductionReproduction Advantages and Disadvantages of Advantages and Disadvantages of

Asexual ReproductionAsexual Reproduction Advantages – variety and/or Advantages – variety and/or diversitydiversity of of

offspring (color, shape, size, offspring (color, shape, size, intelligence, ability, etc.), More able to intelligence, ability, etc.), More able to adaptadapt to environmental changes. to environmental changes.

Disadvantages – uniqueness, sometimes Disadvantages – uniqueness, sometimes traits needed for traits needed for survivalsurvival are not are not passedpassed on.on.

Sexual Sexual ReproductionReproduction Types of Sexual ReproductionTypes of Sexual Reproduction

PlantsPlants – when the reproductive – when the reproductive cells of one plant fertilize cells of one plant fertilize (pollinate) the (pollinate) the reproductive cells reproductive cells of another plant. This produces of another plant. This produces seeds that can grow seeds that can grow into a new plant.into a new plant.

Sexual Sexual ReproductionReproduction Types of Sexual Reproduction.Types of Sexual Reproduction.

AnimalsAnimals – when the reproductive – when the reproductive cells of one cells of one animal fertilize animal fertilize the reproductive cells of another the reproductive cells of another animal. This animal. This produces a produces a baby (embryo).baby (embryo).