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
Parental investment wikipedia , lookup
Cellular differentiation wikipedia , lookup
Parthenogenesis wikipedia , lookup
Dictyostelium discoideum wikipedia , lookup
Drosophila melanogaster wikipedia , lookup
Evolution of sexual reproduction wikipedia , lookup
Developmental biology wikipedia , lookup
Aim: How do organisms reproduce? Who thinks they can define Reproduction? The process by which living things produce other living things like themselves. The production of offspring What are Chromosomes? Found in Nucleus XX XX cell Structures found in the nucleus of our cells that determine our physical characteristics (traits). They have the genetic information(DNA) Chromosomes need to be passed onto the offspring. They are the “instructions” for the cell. Types of Reproduction: Asexual Reproduction XX XX Parent XX XX Genetic Information (Chromosomes) XX XX Clone Offspring Clone Characteristics of Asexual Reproduction: 1) Is the creation of a new individual from only 1 parent. identical 2) Genetic information of offspring is _______ to the parent. Do the cells in our body undergo asexual reproduction? Yes When do the cells of our body undergo Asexual Reproduction? Growth Repair Some organisms are capable of Regeneration The ability of organisms to grow back limbs if they are cut off. Types of Asexual Reproduction: Fission: The splitting of a one-celled organism into 2 equal halves. Types of Asexual Reproduction: Budding: a new cell is formed from a tiny bud on the parent cell What is Sexual Reproduction? It involves the joining of two cells to begin the development of a new individual. These special cells are called: Sex Cells (Gametes) What are the names of these sex cells? Sperm Cell (Male) The joining of a sperm cell with an egg cell is called fertilization. Egg cell (Female) Sexual Reproduction XX Sperm + XX Egg XX XX Offspring A fertilized egg cell is called a Zygote Characteristics of Sexual Reproduction: 1) Is the creation of a new individual from 2 parents. 2) Offspring are not genetically identical to the parents. We get half our genetic information from mom and half our genetic information from dad 23 23 Males: Sperm cells Females: Egg cells Asexual vs. Sexual Reproduction 1 Parent Offspring are identical Bacteria, Amoeba, Body Cells 2 Parents Produce Offspring Offspring are Critical for not identical survival of the Humans, species Dogs, Plants Asexual Reproduction Sexual Reproduction