yo essays

yo essays Upon looking back at our YED dishes, we noticed some areas of bacteria growing on the outer edges of the plate as well as a very bad permeated throughout the room. The only signs of cross contamination that we observed happened when the diploid strains out grew their respected cells and began to move onto other cells areas. However, this was no cause for alarm because we had already recorded our observations and no longer needed the plates. Discussion: The process of sexually reproduction between stains of yeast begins with haploid gametes. The gametes code for dominant and recessive traits which on passed on to the next generation. In this lab's case, the "R" genotype coded for color with a cream color being dominant and red color being recessive. The "T" genotypes coded for the ability to grow in an MVA environment with growth being dominant and not growing being recessive. The haploid gametes combine together and produced diploid offspring which includes traits from both haploid gametes. However, the dominant and recessive traits determine the color and growth of the diploid offspring. My results completely reinforce the principles of dominant and recessive traits in sexual reproduction in that my partner I observed growth and color patterns that were identical to our projected phenotypes in the hypothesis. For the color phenotype ratio we counted 4 out 12 cells with red growth or 1:3 ratio. As for the growth on MVA phenotype ratio we again counted 4 out of 12 cells that did not grow on the MVA or 1:3 ratio. My group collected such accurate date because we meticulously made sure that contamination was kept to minimum. This lab has parallels with Mendal's experiments with peas. Mendal found that when two genes of a pair are different alleles, one is fully expressed or dominant and the other has no effect on or is recessive. Mendal also found that the first generation of offspring produces the entire dominant trait. ...