selected to pass on to the offspring. This supports the fact that the mother and the father has to give an allele to the offspring to form a pair of alleles. Depending on which allele is selected from each parent‚ the offspring will express different phenotypes. The second law is the Law of Independent Assortment. This law states that separate genes for different traits is separated independently from one another and one of them is passed onto the offspring. This means that a particular gene in the pair
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their covalent bonds‚ or more specific‚ the phosphates and the sugar which composes the sugar/phosphate back bone of the polynucleotide. 2. How does an organism’s genotype determine its phenotype? The genotype of an organism is the genetic makeup of that organism‚ it is the nucleotide bases in the organism’s DNA. The phenotype is considered the physical traits of the organism which comes from the actions of the broad variety of proteins. The body of an organism is made up by the structural
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Record the genotype. Reshuffle until each partner has one offspring. 2. Both partners should record their genotype. They are now the next generation. 3. Each partner should obtain cards that correspond with the genotype. Randomly seek other people and mate with them to produce offspring of the next generation. Record genotype after each
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11. What is the structure of a DNA molecule? a. What forms the backbone of the DNA molecule? b. What kind of bonds occur between the 3’ OH on the 3’ C of one nucleotide and the phosphate of the next? b. What forms the “steps of the ladder”? c. What kind of bonds hold the nitrogen bases together? d. What is meant by anti-parallel strands? 12. What is Chargaff’s rule (what binds with what?) 13. How does DNA fold into a chromosome? (the 6 steps) 14. What is a nucleosome? 15. What are
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The purpose of this experiment was to determine the F1 genotype of fruit fly traits using the phenotypic ratio of the F2 generation and to express these results of the unknown cross through a Chi-square model and Mendelian genetics. After the experiment‚ it was found that the parents held a heterozygous genotype through using the Chi-square model‚ and that the observed and expected values fall within the Chi-squared value which also falls into the p-value. The Chi-squared value was 5.64‚ the degrees
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suit human needs. The article states that it is a gradual process‚ and domestication itself is not initially the goal. Domestication is the result of human efforts over an extended amount of time in which a species evolves to fit a desireable genotype/phenotype. In the reading it is also stated that domestication may have sparked social change in Africa. With domestication came herding and pastoral lifestyle‚ a lifestyle which favored certain social structures and may have led to the development of
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that underlies the sub-phenotype of sickle-cell anemia. Therefore‚ this could help in the discovery of drugs that could target the genes responsible for sickle-cell anemia. Genetic mutation and sickle-cell anemia Sickle-cell disease is a commonly known genetic disorder that puts the life at risk of millions of people across the world. This disorder can be classified as a monogenic disorder that results from
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Results : Phenotype Expected Expected Observed Ratio Counts Counts (Eͥ i) ͥ (Oi) Deviation (di) =(EiOi) di² = (EiOi)² di²/Ei Purple 75% 657 642 15 225 .34 Yellow 25% 219 234 15 225 1.03 Χ² = ∑ (di / Ei) = 1.37 According to the chi square chart values we are 80% confident that our hypothesis is correct. Exercise 34. Trait Phenotype Your Phenotype
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this knowledge we can then understand how a gene is passed down through its generations and why it would appear in one individual and not in another. The experiment also helps give a better understanding of genotypes and phenotypes and what role they play in determining and predicting a genotype. Hypothesis Null: The wingless mutation is autosomal recessive Alternative: the wingless mutation is sex-linked The Life Cycle of Drosophila The eggs: The eggs are small‚ oval shaped‚ and
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individual’s phenotype using the individual’s DNA fingerprint. Vocabulary codon‚ DNA‚ DNA fingerprint‚ genotype‚ identical twins‚ nitrogenous base‚ phenotype‚ trait Lesson Overview With the exception of identical twins‚ no two organisms have exactly the same DNA. Therefore‚ DNA is much more accurate than fingerprints or body markings for identifying an individual. DNA sequencing can also be used to diagnose genetic disorders and discover the relationship between a genotype and phenotype. One powerful
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