Asexial reproduction.pptx

Asexual vs. Sexual Reproduction 1 Asexual Reproduction Requires only one parent Offspring have 100% the same chromosomes as the parent. In other words, the offspring are exact “copies” of the parent. Most unicellular organisms reproduce this way. 2 Asexual Reproduction: Types Example: Binary Fis...

Asexual vs. Sexual Reproduction 1 Asexual Reproduction Requires only one parent Offspring have 100% the same chromosomes as the parent. In other words, the offspring are exact “copies” of the parent. Most unicellular organisms reproduce this way. 2 Asexual Reproduction: Types Example: Binary Fission Occurs in bacteria and protists Binary fission is a form of asexual reproduction where every organelle is copied and the organism divides in two. 3 Asexual Reproduction Example: Budding Occurs in Hydra Budding is a means of asexual reproduction whereby a new individual develops from an outgrowth of a parent, splits off, and lives independently. 4 Asexual Reproduction Example: using Spores This occurs in fungi, algae and protozoa Airborne cells that are released from the parent. They are enclosed and developed when the environment is right 5 Asexual Reproduction Example: Regeneration Regeneration occurs when a body part has broken off and the organism grows a new one. 6 Asexual Reproduction Example: Fragmentation Fragmentation is a means of asexual reproduction whereby a single parent breaks into parts that regenerate into whole new individuals. 7 Asexual Reproduction Parthenogenesis is a type of asexual reproduction in which the offspring of some species develops from the egg or female gamete without first being fertilised by the male gamete. 8 Asexual Reproduction Examples of organisms that reproduce asexually Hydra Sea Star Strawberry Archaebacteria Eubacteria Euglena Paramecium Yeast 9 Sexual Reproduction All the members of the Animal Kingdom Fish Mammals Amphibians Birds Reptiles Insects Crustaceans 10 Sexual Reproduction Requires two parents that each share ½ of the genetic information. Offspring share the characteristics of each parent. 11 Advantages vs Disadvantages of Asexual Reproduction Advantages Disadvantages Asexual reproduction Same DNA being produces more offspring Asexual reproduction takes less time Only one parent involved. No searching for mates Requires less energy passed down NO GENETIC VARIATION IN THE OFFSPRING If parent has genetic disease offspring will have it too 12 Advantages vs Disadvantages of Sexual Reproduction Advantages Disadvantages Variation in offspring  Organism is more Requires two protected because of genetic variation organisms. Must find a mate requires more cellular energy More time required for offspring development 13 Asexual vs. Sexual Reproduction 14 Asexual Reproduction Requires only one parent Offspring have 100% the same chromosomes as the parent. In other words, the offspring are exact “copies” of the parent. Most unicellular organisms reproduce this way. 15 Asexual Reproduction: Types Example: Binary Fission Occurs in bacteria and protists Binary fission is a form of asexual reproduction where every organelle is copied and the organism divides in two. 16 Asexual Reproduction Example: Budding Occurs in Hydra Budding is a means of asexual reproduction whereby a new individual develops from an outgrowth of a parent, splits off, and lives independently. 17 Asexual Reproduction Example: using Spores This occurs in fungi, algae and protozoa Airborne cells that are released from the parent. They are enclosed and developed when the environment is right 18 Asexual Reproduction Example: Regeneration Regeneration occurs when a body part has broken off and the organism grows a new one. 19 Asexual Reproduction Example: Fragmentation Fragmentation is a means of asexual reproduction whereby a single parent breaks into parts that regenerate into whole new individuals. 20 Asexual Reproduction Parthenogenesis is a type of asexual reproduction in which the offspring of some species develops from the egg or female gamete without first being fertilised by the male gamete. 21 Asexual Reproduction Examples of organisms that reproduce asexually Hydra Sea Star Strawberry Archaebacteria Eubacteria Euglena Paramecium Yeast 22 Sexual Reproduction All the members of the Animal Kingdom Fish Mammals Amphibians Birds Reptiles Insects Crustaceans 23 Sexual Reproduction Requires two parents that each share ½ of the genetic information. Offspring share the characteristics of each parent. 24 Advantages vs Disadvantages of Asexual Reproduction Advantages Disadvantages Asexual reproduction Same DNA being produces more offspring Asexual reproduction takes less time Only one parent involved. No searching for mates Requires less energy passed down NO GENETIC VARIATION IN THE OFFSPRING If parent has genetic disease offspring will have it too 25 Advantages vs Disadvantages of Sexual Reproduction Advantages Disadvantages Variation in offspring  Organism is more Requires two protected because of genetic variation organisms. Must find a mate requires more cellular energy More time required for offspring development 26