Meiosis is important to eukaryotes, such as plants, animals and fungi, because it is the method by which they produce sex cells. The ability to produce sex cells, and therefore reproduce sexually, increases the genetic diversity of the population. This increased genetic diversity provides a greater pallet of mutations on which natural selection can act.Continue Reading
While most cells in eukaryotes divide through mitosis, sex cells, called gametes, divide by using a different process, termed meiosis. In mitosis, each daughter cell contains the full genetic compliment that was in the parent cell. By contrast, daughter cells that follow meiosis only have half of the genetic code of the parent cell. In other words, sperm and egg cells feature one-half of the DNA it takes to make an organism. When the male and female sex cells combine and initiate fertilization, the cells each contribute half of the DNA for the daughter organism.
Sexual reproduction is common among most macro-organisms, although some plants also use asexual methods of reproduction, such as vegetative propagation. Additionally, some animals, notably sponges, anemones and jellyfish, reproduce asexually by a process known as budding. In each of these examples, the offspring are genetically identical to the parent organisms.Learn more about Cells
Meiosis serves a different purpose than mitosis, as it is the method by which sex cells divide, as opposed to mitosis, which is the method by which body cells divide. In mitosis, the daughter cells have the same number of chromosomes as the parent cell does. By contrast, the daughter cells that result from meiosis have half as many chromosomes as the parent cell does.Full Answer >
According to the College of DuPage, any of the various cells that make up plants, animals, fungi and protists are eukaryotic. This includes the skin cells of humans or the xylem cells of trees. Eukaryotic cells are more evolutionarily advanced than prokaryotic cells, as eukaryotes typically contain a membrane-bound nucleus, which prokaryotes lack. Additionally, eukaryotic cells possess many distinct organelles, which prokaryotic cells lack.Full Answer >
The tonoplast is a membrane that surrounds the vacuole, or organelle that is present in the cells of plants and fungi. The tonoplast is also known as the vacuolar membrane.Full Answer >
Good examples of biotic factors include plants, fungi and animals. Biotic factors are living things that affect or influence an ecosystem either positively or negatively.Full Answer >