Search
- https://bio.libretexts.org/Courses/Skyline_College/BIOL_130%3A_Human_Biology/04%3A_Biological_Evolution/4.04%3A_MicroevolutionIndividuals do not evolve because their genes do not change over time. Instead, evolution occurs at the level of the population. A population consists of organisms of the same species that live in the...Individuals do not evolve because their genes do not change over time. Instead, evolution occurs at the level of the population. A population consists of organisms of the same species that live in the same area. In terms of evolution, the population is assumed to be a relatively closed group. This means that most mating takes place within the population. Evolutionary change that occurs over relatively short periods of time within populations is called microevolution.
- https://bio.libretexts.org/Bookshelves/Genetics/Population_and_Quantitative_Genetics_(Coop)/02%3A_Allele_and_Genotype_FrequenciesIn this chapter we will work through how the basics of Mendelian genetics play out at the population level in sexually reproducing organisms.
- https://bio.libretexts.org/Bookshelves/Human_Biology/Human_Biology_(Wakim_and_Grewal)/09%3A_Biological_Evolution/9.4%3A_MicroevolutionIndividuals do not evolve because their genes do not change over time. Instead, evolution occurs at the level of the population. A population consists of organisms of the same species that live in the...Individuals do not evolve because their genes do not change over time. Instead, evolution occurs at the level of the population. A population consists of organisms of the same species that live in the same area. In terms of evolution, the population is assumed to be a relatively closed group. This means that most mating takes place within the population. Evolutionary change that occurs over relatively short periods of time within populations is called microevolution.
- https://bio.libretexts.org/Bookshelves/Human_Biology/Human_Biology_(Wakim_and_Grewal)/08%3A_Inheritance/8.3%3A_Genetics_of_InheritanceMendel did experiments with pea plants to show how traits such as seed shape and flower color are inherited. Based on his research, he developed his two well-known laws of inheritance: the law of segr...Mendel did experiments with pea plants to show how traits such as seed shape and flower color are inherited. Based on his research, he developed his two well-known laws of inheritance: the law of segregation and the law of independent assortment.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Genetics/09%3A_Mutation_and_Variation/9.08%3A_Linkage_and_Mapping/9.8.07%3A__Mapping_With_Three-Point_CrossesThis page discusses the three-point cross method for mapping three linked genes simultaneously. It involves crossing pure breeding lines to create a trihybrid and testcrossing to observe phenotypic di...This page discusses the three-point cross method for mapping three linked genes simultaneously. It involves crossing pure breeding lines to create a trihybrid and testcrossing to observe phenotypic distributions, allowing for the identification of rare double crossover events. The method aids in calculating recombination frequencies, correcting for undetected double crossovers, and improving genetic mapping accuracy.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Genetics/09%3A_Mutation_and_Variation/9.08%3A_Linkage_and_Mapping/9.8.E%3A_Linkage_and_Mapping_(Exercises)If the A-B map distance is 1cM, and the B-C map distance is 0.6cM, given the lines AaBbCc and aabbcc, what will be the frequency of Aabb genotypes among their progeny if one of the parents of the dihy...If the A-B map distance is 1cM, and the B-C map distance is 0.6cM, given the lines AaBbCc and aabbcc, what will be the frequency of Aabb genotypes among their progeny if one of the parents of the dihybrid had the genotypes AABBCC? The proportion of the seeds that are also either white or purple flowered would help you to know about the linkage between the two loci only if the genotypes of the parents of the dihybrid were also known.
- https://bio.libretexts.org/Courses/City_College_of_San_Francisco/Introduction_to_Genetics/09%3A_Mutation_and_Variation/9.08%3A_Linkage_and_Mapping/9.8.05%3A__Inferring_Recombination_From_Genetic_DataThis page explores the difficulties of inferring allele arrangements in genetic studies without direct chromosome analysis. It highlights the importance of parental genotypes in determining allele con...This page explores the difficulties of inferring allele arrangements in genetic studies without direct chromosome analysis. It highlights the importance of parental genotypes in determining allele configurations (cis or trans) and details an experiment with dihybrid organisms from pure-breeding lines. A testcross with recessive individuals helps identify gamete genotypes, enabling calculation of recombination frequencies from observed phenotypes.
- https://bio.libretexts.org/Courses/Minnesota_State_Community_and_Technical_College/Biology_of_Human_Concerns_(Daniels)/12%3A_Inheritance/12.03%3A_Genetics_of_InheritanceMendel did experiments with pea plants to show how traits such as seed shape and flower color are inherited. Based on his research, he developed his two well-known laws of inheritance: the law of segr...Mendel did experiments with pea plants to show how traits such as seed shape and flower color are inherited. Based on his research, he developed his two well-known laws of inheritance: the law of segregation and the law of independent assortment.
- https://bio.libretexts.org/Workbench/Principles_of_the_Human_Body/10%3A_Inheritance/10.3%3A_Genetics_of_InheritanceMendel did experiments with pea plants to show how traits such as seed shape and flower color are inherited. Based on his research, he developed his two well-known laws of inheritance: the law of segr...Mendel did experiments with pea plants to show how traits such as seed shape and flower color are inherited. Based on his research, he developed his two well-known laws of inheritance: the law of segregation and the law of independent assortment.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/08%3A_The_Genetic_Consequences_of_Meiosis/8.06%3A_Quantitative_Trait_LociThis page discusses Mendel's rules of inheritance and their limitations in explaining continuous human traits like height and weight. It highlights Nilsson-Ehle's 1908 research on polygenic inheritanc...This page discusses Mendel's rules of inheritance and their limitations in explaining continuous human traits like height and weight. It highlights Nilsson-Ehle's 1908 research on polygenic inheritance in wheat, illustrating that traits like kernel color involve multiple gene pairs, leading to variations. This concept aids in understanding human diseases, as multiple genes can interact to influence conditions such as cancer.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/08%3A_The_Genetic_Consequences_of_Meiosis/8.04%3A_Genetic_linkage_and_Genetic_MapsThis page discusses Mendel's dihybrid cross in peas, which led to the Rule of Independent Assortment, indicating that gene pairs are inherited independently, especially for genes on separate or distan...This page discusses Mendel's dihybrid cross in peas, which led to the Rule of Independent Assortment, indicating that gene pairs are inherited independently, especially for genes on separate or distantly located chromosomes. It acknowledges the presence of syntenic traits that still assort independently and highlights the complexities of linkage analysis in corn, where varying recombination frequencies can impact the accuracy of genetic mapping.