Asexual Reproduction
Asexual reproduction is ONE parent giving rise to offspring with identical genome(s) as the parent
Common Types of Asexual Reproduction:
Fission (Mitosis in somatic cells)
Budding (In Yeast, Hydra)
Vegetative Propagation (aka Vegetative Reproduction) (Clonal colonies in trees)
Fragmentation (In Fungi)
BUT IF THE OFFSPRING HAVE THE SAME GENOME AS EACH OTHER BUT NOT THE SAME AS THE PARENT,
then the offspring most likely started as one, but split, for example identical twins
It is called speciation. Speciation can happen through adaptation, which is a change in an organisms genetic code. If adaptation has gone on long enough so that the two organisms can no longer produce offspring, then speciation has occurred.
The Enlightenment and Scientific Revolution both occurred between 1600 - 1800 CE.
Uniformitarianism
A chemical equation shows that chemical reaction has occurred as new substances have been formed from the reagents. A chemical equation has two sides before reaction and after reaction, if there is any change from the before reaction side to the after reaction side, it indicates that a chemical reaction has just occurred.
they have lots of steps
During Mitosis the cell creates an exact replica of the DNA and the cell as a whole. When an offspring is formed asexually the parent and offspring are also identical. When an offspring is formed sexually half the genetics of the parents are passed on to the offspring.
To determine if any mutations occurred in a set of offspring, one would need to analyze their genetic material compared to that of the parents. Mutations can arise from various factors, including errors during DNA replication or environmental influences. If specific genetic variations or anomalies are identified in the offspring that are not present in the parents, then mutations have indeed occurred. Otherwise, if the offspring's genetic makeup is identical to the parents, it suggests no mutations have taken place.
Asexual reproduction produces organisms that are exactly identical or clones of each other. This leaves these organisms subject to total destruction if one can be affected all can be affected. Sexual reproduction was favored because each individual in a species is slightly different. If a disease occurred in the species, there would be a good chance that some would survive.
speciation
The type of reproduction that has occurred is asexual reproduction, specifically vegetative propagation. In this process, the leaf develops roots through mitosis, which is the mechanism by which cells divide and replicate to produce new cells. This allows the leaf to grow roots and potentially develop into a new plant, demonstrating how a single parent plant can produce offspring without the need for seeds or pollination.
Binary fission is a form of asexual reproduction in which a single cell divides into two separate cells. During this process, the DNA of the cell is replicated, and the cell then elongates and divides in the middle, resulting in two genetically identical daughter cells. This process is common in prokaryotic cells, such as bacteria.
Neanderthals and humans were genetically similar enough to be able to produce viable offspring when interbreeding occurred. The hybrid offspring likely benefited from gene flow between the two populations, leading to increased genetic diversity. Additionally, the ability to interbreed indicates that Neanderthals and humans were closely related species.
After mitosis, the cells produced are called daughter cells. These cells are genetically identical to each other and to the original parent cell, assuming no mutations have occurred. In the case of somatic cells, they will continue to grow and function in the same way as the parent cell. If the mitosis process is part of gametogenesis, the resulting cells are gametes, which have half the chromosome number of the original cell.
The process that has occurred is called vegetative propagation. This is a form of asexual reproduction where a new plant is produced from a part of the original plant, such as a cutting, without the need for seeds.
A Hybrid sterility is an example of a postzygotic reproductive barrier. This occurs when the offspring of two species are sterile and cannot produce viable offspring of their own. It is a mechanism that prevents gene flow between species after mating has occurred.
A postzygotic reproductive barrier refers to mechanisms that prevent successful reproduction after fertilization has occurred. These barriers can lead to hybrid inviability, where the hybrid offspring do not develop properly or survive to adulthood, or hybrid sterility, where the offspring are unable to reproduce (e.g., mules, which are hybrids of horses and donkeys). Other outcomes include hybrid breakdown, where the first generation of hybrids is viable and fertile, but subsequent generations are weak or sterile. Overall, postzygotic barriers contribute to reproductive isolation between species.
In Model 3 two of the light alleles were lost (through the death of the individual who had these two alleles) before reproduction occurred in the 1st generation how did this affect the distribution of the three alleles in this small population?