The difference between anaphase 1 and anaphase 2 is the separation of different types of chromosomes. In Anaphase 1 of mitosis, the homologous (same) chromosomes separate to either side of the cell, and the centromere is whole. In Anaphase 2, the sister chromatids separate, and the centromere is split, which causes the chromatids to separate.Know More
In anaphase 1, the homologous chromosomes move to the opposite poles, and the sister chromatids remain attached. There are other changes: the kinetochore microtubules (spindles) shorten to pull the chromosomes towards the poles. This forms two haploid sets meaning that each set has 23 chromosomes or 46 total, the number typically found in humans. Each chromosome has two chromatids which move separately in anaphase 2.
In anaphase 2, the centromeres are cleaved down the middle allowing microtubules to attach to the kinetochores which pulls the sister chromatids apart. The centromeres are the center part of the sister chromatids that hold them together, often represented by a dot or a circle. When this is broken, the two separate. The sister chromatids are now called sister chromosomes as they move toward opposing poles and are no longer together. By this time, the cell is almost ready to completely separate into daughter cells, resulting in four overall daughter cells by the end of meiosis 2.Learn more about Molecular Biology & DNA
Heredity refers to the passing of characteristics from parents to offspring. Genetics is the study of heredity, genes and variations in organisms. Heredity occurs in plants, animals, bacteria and fungi.Full Answer >
A mutagen is something that causes changes in the DNA, while a carcinogen is something that causes cancer. A mutagen can be a chemical or a phenomenon such as ultraviolet radiation. Overexposure to UV radiation has been linked to skin cancer.Full Answer >
The difference between myosin and actin is that, where myosin uses cellular energy to move along the actin, the actin is the passive partner in the process. Myosin and actin are the protein types responsible for muscle movement, as well as movement in many other types of cells. Because they have such a widespread role, myosin and actin are crucial proteins for many forms of life.Full Answer >
Genes are individual segments of DNA and chromosomes are structures which contain many genes packed together. Each chromosome contains one DNA molecule and each DNA molecule contains several genes or individual strands.Full Answer >