Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Maternal effect wikipedia , lookup
Reproductive suppression wikipedia , lookup
Parthenogenesis wikipedia , lookup
Animal sexual behaviour wikipedia , lookup
Hybrid (biology) wikipedia , lookup
Koinophilia wikipedia , lookup
Parental investment wikipedia , lookup
Evolution of sexual reproduction wikipedia , lookup
Reproduction Organisms producing more organisms Reproduction Species Organisms so closely related they can mate and produce fertile offspring Mule Offspring of different species Sterile, cannot produce offspring Liger, Tiglon 2 Basic Types Asexual Sexual Asexual One parent Requires mitosis Offspring are identical to the parent Examples Binary fission- bacteria Budding- hydra (p 679) Cuttings- some plant (mums) Runners- strawberry Sexual Two parents Male Female Requires meiosis Forms gametesReduces the chromosome number Sexual Requires fertilization Union of gametes Restores diploid # 1N + 1N = 2N Offspring inherit ½ chromosomes from each parent Offspring are different than the parents and each other (except identical twins) Sexual Examples Human Other animals Flowering plants