Download Notes on Asexual Reproduction

Notes on Asexual Reproduction
WHAT IS ASEXUAL REPRODUCTION?
•It’s the production of offspring by one parent without a sperm and egg joining.
•The offspring are genetically identical to the parent!
ADVANTAGES OF ASEXUAL REPRODUCTION
•It does not require a mate
•It takes less time to reproduce offspring.
DISADVANTAGES OF ASEXUAL REPRODUCTION
•It lacks genetic variation (differences in their genes – which increases the chances for
species survival if environment changes.
•Mutation or genetic changes can occur which can be harmful.
TYPES OF ASEXUAL REPRODUCTION
•FISSION: produces two genetically identical cells. Example is bacteria called E.coli.
•MITOTIC CELL DIVISION: mitosis followed by cell division which also produces two
genetically identical cells. Example is diatom.
•BUDDING: new offspring or organism forms on the parent organism which is called a
“bud”. Examples are yeasts and hydras
•PLANT CUTTINGS: a new plant can grow from a stem cutting. Examples are
Poinsettias and Kalanchoe plants.
•ANIMAL REGENERATION: produces new animals from pieces of an animal’s body.
Example is a sea star (starfish).
CLONING