Julia’s Blog

Karyotypes help us to increase our knowledge about human genetics. By looking at them scientists can see many informations of the person. But what else is so special about a so called karyotype?  Structure of a karyotype A karyotype can be seen as a picture of all the chromosomes in the cell of a person. Chromosomes carry all the genetic information, which is required for various functions and development. Typically, every human has 46 chromosomes. These are 23 pairs and contain genetic information from both mother and father. The last pair of chromosomes decides if the person is a boy or a girl as they are called the sex chromosomes. Scientists can see possible abnormalities by looking at these karyotypes. How can we see those chromosomes? During the process of meiosis cells are encouraged to divide and you can see those chromosomes if you take a close look under a microscope. Chromosomes are very tiny so you are not able to see them with the naked eye - you need a microscope. By ...

  We may n ot notice it and not everybody knows the importance of it , but Photos ynthesis is ve ry important for everyone to get to their energy. Photosynthesis is t aking plac e nearly all the time. Even now while writing this blog post, plants and other organisms may transform light energy into chemical energy.   But how does this work and where does it take pl ace? To answer this question, the structure of a cell should be clear to anyone , because not every cell can do photosynthesis . Only cells with chloroplasts can do photosynthesis . These are plant cells. But to perform photosynthesis you need more than just a plant cell. Sunlig ht, carbon dioxide and water are needed to start the process of photosynthesis. Once everything is given, the cell starts the process in the chloroplast in the form of light reactions and the Calvin cycle. As soon as the sunlight touches the Thylakoids membrane who is in the chloroplast , the sunlight gets transformed into che...