Sexual vs. Asexual Reproduction

Sexual Reproduction Sexual reproduction involves two parents, one male and a female The male produces sperm which contains 50% of the new offspring's DNA and the female produces and egg which contains 50% of the new offspring’s DNA. When put together they make 100% of the new offspring’s DNA The advantage of this is that offspring will have genetic diversity and look different from their parents and will have the genetic diversity that allows them to adapt The disadvantages are that it takes a lot of energy to make sperm and eggs and to find a mate.

Asexual Reproduction Only requires one parent The offspring’s DNA will be the same as the parents All the offspring will be uniform (look identical to the parent) The advantage of asexual reproduction is that parents do not have to use energy to find mates or to produce sperm or eggs. The disadvantage is that all the offspring will be uniform and susceptible to the same diseases and predation because they will not have the genetic diversity to allow them to adapt

Types of Asexual reproduction Binary Fission - When unicellular organism (such as bacteria) split in half becoming two Budding - When yeast, coral, & hydra create a duplicate of themselves inside themselves Segmentation/Regeneration - When starfish & worms regenerate after being cut in half Vegetative Reproduction - When a plant plants a piece of itself in the soil that becomes disconnected from the original plant and grows by itself.

Binary Fission

Budding

Segmentation/Regeneration

Vegetative Reproduction

Warm-Up (10/31/16) How many parents are involved in sexual and asexual reproduction? What two things are requires for sexual reproduction? What are the advantages of asexual reproduction? If a new virus shows up, which will be able to adapt: sexually produces offspring, or asexually produced offspring? Why?