What is Biology? Collage
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Unit 4 Reflection
In this unit, we talked about sex. Not that type of sex, but reproduction! Recently we done a coin sex lab to simulate the process of meiosis and reproduction. The coins had a dominant and recessive, heterozygous, trait or the same allele, homozygous, on the front and back of the coin. Then you and your partner would flip it and see what "your child" would have, whether it was to determine if it was a boy or girl, or if it had bipolar disorder. In the dihybrid cross simulation, there were varieties of traits. It had 16 different genotypes, unlike the monohybrid, where there were 4 genotypes. The limit of using probability to predict our offsring's traits was was limited. It could help you find the average for the traits, but the probability will not be correct all the time. I was just a way to compare to the punnett squares that we had developed. By understanding this concept, I understand the concept of genes and recombination. In life, I will potentially have a child th...
Eggcellent Macromolecules Lab
In this lab, we asked "can macromolecules be identified in an egg cell?" We found that we can identify macromolecules in an egg with the right solution to test it. For the egg membrane, we found lipids present from the color change, after submerging the egg into the Sudan III and water solution. The solution, originally bright red, changed to a medium red-ish orange. Lipids make up the membrane and stores energy. The egg white contained traces of protein when it showed the color change from blue to a dark purple, due to the added sodium hydroxide and copper sulfate. The cell produces the structural protein to feed the growing chick inside the egg. It also serves as protection. Lastly, there was polysaccharides in the egg yolk. With the help of another group's data, we concluded that the chestnut brown solution, iodine, changed to a blackish color. It stores energy for the cell, or the developing chick. This lab had many issues and errors to it. For one, our monosacchari...
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