1. Dragon lab that explored the relationship between genotype and phenotype. The offspring's alleles had to match the parents alleles. They both ended up with the manipulated alleles: Hh (horns), aa and Bb (color), pp (plates), ans ff (fire).
2. An example of phenotype. Two babies have the characteristics of darker skin, three babies have the characteristics of lighter skin.
3. Punnet square of a mono hybrid cross.
of heterozygous parents. Their offspring results in one homozygous dominant, two heterozygous dominant, and one homozygous recessive.
4. Punnet square lab of scenario five that instructed a cross between a heterozygous long-winged fly with a heterozygous long-winged fly. It resulted in one homozygous dominant, two heterozygous dominant, and one homozygous recessive.
The birth of a baby is a life changing event. The moment I saw my daughter, I could not believe how beautiful she was. And I could not believe that her father and I had created such an amazing living thing. I remember after experiencing the first couple days of her life, my mother-in-law kept stating how much she resembled her father, such as the shape of her eyes and lips. But a couple things that really surprised us was the fact that she had blue eyes and light red hair, because her father and I both have dark eyes and dark hair! In relation to genetics, our daughter must of inherited our recessive gene traits, which made her another phase of evolution. Actually, the significance of genes in inheritance is very important because certain genes can either be dominant or recessive and can make an impact in a positive or negative way. In accordance with the genetic lab, they represent examples of how traits from a parent or parents can be affected when passed onto their offspring.
The first lab consisted of the manipulation of genotypes to end up with particular phenotypes. A genotype is the genes of an individual that can be described by alternate forms of genes called alleles. And a phenotype is any characteristic of the individual. For example, in the dragon lab, the parent dragon contained a heterozygous dominant genotype with the alleles Hh for the phenotype of horns. When the offspring was produced from the parent dragon, the alleles had to be manipulated to share the same genotype and appearance of the parent. The second lab also allowed a degree of manipulation of the inheritance of genes by the use of a punnet square.
The second lab consisted of a cross between a heterozygous long-winged fly and another heterozygous log-winged fly. The crossing of the two parents genotypes provided a sense of which offspring would receive dominant genes (allele that presents itself in hetero zygote and masks the expression of the recessive allele) and which offspring would receive recessive genes (allele that presents itself only in homozygous). For example, in the punnet square lab, the heterozygous parent flies made four different crosses in the creation of their offspring. One of the crosses created a recessive homozygous genotype, which contained the alleles ll. Another cross that was created was a dominant homozygous genotype, which contained the alleles LL.
After my daughter was born, my husband and I were surprised to see that our daughter ended up receiving our recessive traits of blue eyes and red hair. Which in turn has made her another phase of evolution. In the dragon lab, the manipulation of genotype's alleles to output certain phenotypes allowed for corresponding changes with the offspring of the parent. In the punnet square lab, the crossing of the two heterozygous parents created offspring of dominant homozygous, dominant heterozygous, and recessive homozygous genotypes. It is from each lab example that the inheritance of genes from parent to child can vary within the limits of what the parents are carrying within their genetic material. In some instances, the inheritance of genes can have a positive effect, such as the forward movement of evolution. For example, in the dragon lab, the parent passed along the trait of fire to its offspring and in turn can be used for efficient survival. In the punnet square lab, one of the crosses created a fly with shorter wings than the parents, which in turn could be beneficial for faster flight speed. Overall, the creation of life is a constant changing force that leads all living things into diversity.
Sources:
Pictures:
1. biologica.concord.org/webtest1/web_labs_genophenpt
3. staff.jccc.net/.../transgenetics/monopunnett.gif
Labs:
Dragon: biologica.concord.org/webtest1/web_labs_genophenot
Punnet Squares: www.mhne,com/biosc/genbio/virtual_labs/BL_05/BL_o
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