Page 7 of 36 - About 358 Essays
  • Negatives Of Selective Breeding

    selecting for the alleles that are best suited for the organism to survive in the wild, humans select rare desirable phenotypic traits in organisms and breed them with each other in order produce an offspring containing those traits. Desirable traits include leaner meat in animals, or better quality milk in cows for commercial uses. The process is constantly repeated to the point where the frequency of the desirable allele increases in the genepool, and where the expression of the allele becomes…

    Words: 1975 - Pages: 8
  • Actinin-3 Essay

    for endurance and speed. Africans have the lowest incidence of the ACTN3 mutation while Asians have the highest. This could be because of how much energy was needed for these individuals in different parts of the world. It was interesting to see the allele frequency for this gene in elite athletes and how it was expressed based on the sport or level of complexity that the athletes performed at. It was striking to see that the genotype frequency displayed from this study showed that power…

    Words: 1395 - Pages: 6
  • Intragenic Recombination Essay

    distinct two parental alleles in traditional genetics . The intragenic recombination causes a distinct fragment pattern from both parents (Okagaki and Weil 1997). To easily discover the intragenic recombination, two individuals carried non-functional alleles of targeted genes, whose intragenic recombination causes a functional allele and obtained a distinct phenotype change, are priority used to develop a population for estimation of intragenic recombination rate. The functional alleles/plants…

    Words: 991 - Pages: 4
  • Mendel's Genetic Experiment

    plants and outlined three laws oh inheritance. First, the Law of Dominance is expressed where one allele dominates over recessive one. For instance, during the experiment with the pea plants, the parents were both homozygous (with identical forms of alleles YY and gg. In the F1-generation the plants were heterozygous (Yg), however with all seven pea plant traits, he examined that yellow (Y) allele appeared to be dominant over the green (G). If the genotype is Yg (heterozygous), the phenotype…

    Words: 1442 - Pages: 6
  • Brassica Oleracea Case Study

    Moreover, the effective number of alleles per locus (Ae) varied from 1.597 in the accession of cabbage HRIGRU4497 to 2.394 in the accession of spring cabbage HRIGRU4566, with a mean of 1.906 (Table 3). The mean number of alleles per locus (A) ranged from 1.8 to 2.8 with an average of 2.096. These results indicated that the SSR loci in Brassica oleracea accessions analysed presented uneven allele frequencies (Ae=…

    Words: 951 - Pages: 4
  • Selective Breeding Research Paper

    breeding allows to ‘breed out’ genetic disorders by removing them from the population, meaning that if we can test the DNA we can establish which individuals may be carries for specific genetic diseases and either breed for or avoid breeding for the alleles they may carry. Selective breeding was incredibly common with domesticated animals but is now being applied to humans on a more regular basis through the techniques of DNA sequencing, embryo selection and egg and sperm donors. DNA sequencing…

    Words: 2597 - Pages: 11
  • Meiosis I And Meiosis: Four Haploid Cell Processes

    chromatids. In anaphase II, a new law is introduced which is the Law of Segregation. The Law of Segregation states that each allele that is responsible for a certain trait is separated into their individual cells. For example, big A has an allele that is responsible for being tall, small a has an allele for being short, small b has an allele for blue eyes, and big B has an allele for brown eyes; these different chromosomes will be separated into different gametes. This process creates a genetic…

    Words: 763 - Pages: 4
  • The Importance And Origin Of Diversity In Species

    Introduction It is estimated that there are one trillion species on earth despite all being originated from one common ancestor, LUCA. In this essay the importance and origin of diversity within species and between species is explored using Coleoptera as the taxonomic group. Coleoptera is the most dominant order of insects with 350,000-400,000 species, this is 40% of all insect species (Gillott, 1995) and the largest order in the animal kingdom. The degree of differences between individuals is…

    Words: 1665 - Pages: 7
  • Week 3 Assignment

    Week 3 Assignment Please thoroughly answer the following 5 questions. 1. By conducting testcrosses, researchers have found that the sweet pea has seven linkage groups. How many chromosomes would you expect to find in leaf cells? The cell leaf would be able to contain 14 chromosomes within the sweat pea. The sweat pea should have seven chromosomes per set. The sweet pea should contain two sets of chromosomes. 2. Explain why inversions and reciprocal translocations do not usually cause…

    Words: 582 - Pages: 3
  • The Prisoner Of Azkaban Analysis

    The major mythical aspect of J.K. Rowling’s Harry Potter and The Prisoner of Azkaban not surprisingly violates the fundamental principles of science. This novel incorporates several ideas that do not have a scientific basis, for example the concept of “transfiguration”, the ability of humans to transform into animals. However, from the standpoint of evolutionary biology, Azkaban provides examples of evolution in practice, including gene expression and hybrid species. It also includes characters…

    Words: 1696 - Pages: 7
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