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Joshaline Douglas October 25, 2012 BIO 110 Punnet jog Journal 1. For unmatched of the monohybrid crosses you performed in this Investigation, report how to use the phenotype ratios to lay the percentage of offspring displaying each trait. utilise a Punnett Square you crap (2X2 box) then an Ll across the surmount and ll down the side. You pull up stakes then have Ll, Ll, ll, and ll. The lowercase letters appoint recessionary traits and the uppercase represent dominant. The ratios are split into Phenotypes and Genotypes. If you have at least one dominant trait then it is considered a genotype. For this problem Ll LL. geminate recessive is a phenotype (ll.) your ratio for the supra Ll, Ll, ll, ll is 2:4 (1:2) for both Phenotype and Genotype. 2. Can the genotype for a gray- incorporated drop be determined? Why or why not? light upon wholly of the possible genotypes for a locomote with that phenotype. Gray embodied move would be dominant and raw bodied flies would be recessive. So, the results can only be a homozygous dominant travel (GG) or heterozygous fly (Gg). If I cross that fly with a dimmed bodied fly (gg) and there is a result of near black bodied flies, then you know the original fly was heterozygous. If it results in all gray flies, then it was dominant. 3. Explain why an being with a homozygous dominant genotype has the uniform phenotype as an organism with a heterozygous genotype. Because the heterozygous has the aforementioned(prenominal) dominant that the homozygous does. Its on the nose hybrid for another trait, still its dominance shows. 4. What genetic training can be obtained from a Punnett square? What genetic discipline cannot be determined from a Punnett square? Punnett squares are very(prenominal) useful when dealing with rigorously dominant or rigorously recessive genes. The resultant phenotype is understandably predictable.If you want to get a full essay, order it on our website: Order! CustomPaper.com

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