In session 1, I learned about the basics of genetics. I learned what chromosomes were and what DNA was. I learned that every human has 43 chromosomes that are grouped into 23 pairs. DNA, deoxyriboucleic acid, is made of sugar, phosphate, and nitrogenous bases. Chromosomes are made up of DNA molecules that are broken into segments called genes. DNA has four parts- adenine, thymine, cytosine, and guanine.
In session 2, I learned about mitosis and meiosis. Mitosis is the process in which body cells are reproduced. Meiosis is similar to mitosis, but is in two parts and gives the organism either sperm for a boy or eggs for a girl. I got to experiment with a magnet and some beads to show how chromosomes combine together to create a daughter cell.
I learned about how dominant and recessive genes combine. I also got to learn about incomplete dominance. Incomplete dominance is when two traits aren't completely dominant, but they are expressed partially. It's would be like if a yellow trait and a red trait was passed down, they would mix and the offspring would be orange. I also got to simulate a generation of offspring from different parent genotypes and determine the genetic notations of the offspring.
In session 4, I got to use Lego bricks to combine and simulate alleles to produce offspring. I also got to calculate the probability of producing a certain offspring. An example of this would be if a mother frog's alleles were yr (yellow, red) and the father's alleles were also yr, only 50% of the frogs would be orange, 25% would be yellow, and 25% would be red.
In session 5, I learned about sex-linked genes. Sex-linked genes are genes that are located on the sex chromosomes. This would be like hemophilia, color blindness, and muscular dystrophy. I got to simulate a dihybrid cross experiment and analyze the genotypes and phenotypes of a dihybrid cross.
In session 6, I learned about ways genetic research is used in modern society. I looked at two different situations involving the effects of genetic research. Lastly, I discussed the risks and benefits of genetic research in two scenarios.
In session 7, I simulated four populations of tree frogs. I got to explore the effects of natural selection on a population. I explored the effects of environmental change on a population. www.youtube.com/watch?v=JPYRpAVc83M
A geneticist is one of the multiple careers in the Genetics field. These people are expected to manage a number of abstract problems and put together pieces of the DNA and heredity puzzles. Being closely tied to their work allows a geneticist to answer maybe one question about the genome. Geneticists work at pharmaceutical companies and try to learn the cause of a disease or defect and find a way to cure or prevent it.