Gene pool
... • Random mating? An organism’s genotype does influence its mate selection, the physical efficiency and frequency of mating, its fertility so random mating just doesn’t exist! • No natural selection. All alleles have equal chance of existing. ...
... • Random mating? An organism’s genotype does influence its mate selection, the physical efficiency and frequency of mating, its fertility so random mating just doesn’t exist! • No natural selection. All alleles have equal chance of existing. ...
class notes powerpoint - Social Circle City Schools
... What is all that stuff? Founder effect- Small sample settles in a location completely separate from others – the random alleles now become the norm. For example, the Afrikaner population of Dutch settlers in South Africa is descended mainly from a few colonists. Today, the Afrikaner population has ...
... What is all that stuff? Founder effect- Small sample settles in a location completely separate from others – the random alleles now become the norm. For example, the Afrikaner population of Dutch settlers in South Africa is descended mainly from a few colonists. Today, the Afrikaner population has ...
Slide 1
... Fusion of gametes – In sexual reproduction the offspring inherit some characteristics from each parent and are therefore different from both of them. The fusion of gametes at fertilisation is completely random. ...
... Fusion of gametes – In sexual reproduction the offspring inherit some characteristics from each parent and are therefore different from both of them. The fusion of gametes at fertilisation is completely random. ...
alleles in gene pair are identical
... with a maternal homolog at any one chromosome pair? • ½ or 50% • The chance that all 23 homologs from one parent will end up in a single gamete is 1 in 8 million ...
... with a maternal homolog at any one chromosome pair? • ½ or 50% • The chance that all 23 homologs from one parent will end up in a single gamete is 1 in 8 million ...
Large-Scale High-Resolution Orthology Using Gene Trees
... What is this lecture about? • What is ‘orthology’? • Why do we study gene-ancestry/gene-trees ...
... What is this lecture about? • What is ‘orthology’? • Why do we study gene-ancestry/gene-trees ...
Chapter 16 notes
... Example: Your team has won 9 games from a total of 12 games played: the Frequency of winning is 9. the Relative Frequency of winning is 9/12 = 75% ...
... Example: Your team has won 9 games from a total of 12 games played: the Frequency of winning is 9. the Relative Frequency of winning is 9/12 = 75% ...
ppt version
... Genetic Variation in Populations – Individual variation abounds in populations. • Not all of this variation is heritable. • Only the genetic component of variation is relevant to natural selection. – A population is said to be polymorphic for a characteristic if two or more morphs, or forms, are pr ...
... Genetic Variation in Populations – Individual variation abounds in populations. • Not all of this variation is heritable. • Only the genetic component of variation is relevant to natural selection. – A population is said to be polymorphic for a characteristic if two or more morphs, or forms, are pr ...
Natural Selection
... Natural selection and Evolution • Natural selection will lead to evolution – when individuals with certain characteristics have a greater survival or reproductive rate than other individuals in a population ...
... Natural selection and Evolution • Natural selection will lead to evolution – when individuals with certain characteristics have a greater survival or reproductive rate than other individuals in a population ...
Genetic Engineering, Evolution, and Diversity
... these structures were no longer needed – the appendix for example is small and useless in humans but assist digestion of cellulose in herbivores indicating humanity’s ...
... these structures were no longer needed – the appendix for example is small and useless in humans but assist digestion of cellulose in herbivores indicating humanity’s ...
File
... • The light colored moths were easily eaten by birds. • The dark moths were now better camouflaged. • The dark moths were better suited for their environment and were able to survive, reproduce, and increase in population size. ...
... • The light colored moths were easily eaten by birds. • The dark moths were now better camouflaged. • The dark moths were better suited for their environment and were able to survive, reproduce, and increase in population size. ...
Slide 1 - Cloudfront.net
... the rates are simply too low. However, gene (and whole genome) duplication — a form of mutation — probably has played a major role in evolution. Link to a discussion. In any case, evolution absolutely depends on mutations because this is the only way that new alleles are created. After being shuffle ...
... the rates are simply too low. However, gene (and whole genome) duplication — a form of mutation — probably has played a major role in evolution. Link to a discussion. In any case, evolution absolutely depends on mutations because this is the only way that new alleles are created. After being shuffle ...
Review: The Gene: An Intimate History. By Siddartha Mukherjee
... As for its application to the field of big history, the book notably does not employ familiar concepts or tools such as complexity, scale, or emergent properties to tell his story. Perhaps the crux of the issue is that The Gene: An Intimate History is really not a history of the gene as the title se ...
... As for its application to the field of big history, the book notably does not employ familiar concepts or tools such as complexity, scale, or emergent properties to tell his story. Perhaps the crux of the issue is that The Gene: An Intimate History is really not a history of the gene as the title se ...
Redalyc.Memetics: a dangerous idea
... proposed the existence of a unit of cultural transmission for which he coined the very appealing neologism of “meme” calling it the second replicator. Memes, as genes, are copied. They mutate and are selected. This idea has undergone the sorcerer’s apprentice path spreading rapidly amongst many evol ...
... proposed the existence of a unit of cultural transmission for which he coined the very appealing neologism of “meme” calling it the second replicator. Memes, as genes, are copied. They mutate and are selected. This idea has undergone the sorcerer’s apprentice path spreading rapidly amongst many evol ...
Document
... research community may not be recognized by others. • Without coordination, research work may be duplicated. • The goal of the Gene Ontology Consortium is to produce a controlled vocabulary that can be applied to all eukaryotes even as knowledge of gene and protein roles in cells is accumulating and ...
... research community may not be recognized by others. • Without coordination, research work may be duplicated. • The goal of the Gene Ontology Consortium is to produce a controlled vocabulary that can be applied to all eukaryotes even as knowledge of gene and protein roles in cells is accumulating and ...
Ch. 13 How Populations Evolve
... Genetic Variation in Populations – Individual variation abounds in populations. • Not all of this variation is heritable. • Only the genetic component of variation is relevant to natural selection. – A population is said to be polymorphic for a characteristic if two or more morphs, or forms, are pr ...
... Genetic Variation in Populations – Individual variation abounds in populations. • Not all of this variation is heritable. • Only the genetic component of variation is relevant to natural selection. – A population is said to be polymorphic for a characteristic if two or more morphs, or forms, are pr ...
CHAPTER 3: EVOLUTION, GENETICS, AND HUMAN VARIATION
... theory of evolution through natural selection (explaining how evolution occurred). 6. Darwin posited natural selection as the single theory that could explain the origin of species, biological diversity, and similarities among related life forms (reaching this conclusion along with Alfred Russell Wa ...
... theory of evolution through natural selection (explaining how evolution occurred). 6. Darwin posited natural selection as the single theory that could explain the origin of species, biological diversity, and similarities among related life forms (reaching this conclusion along with Alfred Russell Wa ...
Natural Selection and Fitness
... Directional Selection – shifts the overall makeup of the population by favoring variants at one extreme of the distribution ...
... Directional Selection – shifts the overall makeup of the population by favoring variants at one extreme of the distribution ...
EXAM 1
... 13. Provide one example from your readings or lecture on relatively rapid evolution that we have been able to observe in recent time. Explain how it is evidence for natural selection. (HINT: possible ones to choose from would be beak size in the finches on Galapagos, HIV evolving resistance to antiv ...
... 13. Provide one example from your readings or lecture on relatively rapid evolution that we have been able to observe in recent time. Explain how it is evidence for natural selection. (HINT: possible ones to choose from would be beak size in the finches on Galapagos, HIV evolving resistance to antiv ...
Mechanisms for Evolution - Ms. McGurr's Science Page
... affect the gene frequency of G and g in this population of rabbits? 6. How could you simulate migration if you were to repeat this activity? 7. How do your results compare with the class data? If different, why are they different? ...
... affect the gene frequency of G and g in this population of rabbits? 6. How could you simulate migration if you were to repeat this activity? 7. How do your results compare with the class data? If different, why are they different? ...
workshop2
... • Literature only: average ranking = 425 – 425/38697 = 98.9th percentile – 44/154 genes ranked #1 for at least one set of weights ...
... • Literature only: average ranking = 425 – 425/38697 = 98.9th percentile – 44/154 genes ranked #1 for at least one set of weights ...
B. directional selection.
... and produce fertile offspring. This is a prerequisite for speciation.___________________________________________ ____________________________________________________ 15. What is Genetic Drift? In what kinds of situations is it likely to occur? (K) Genetic Drift is a random change in allele frequency ...
... and produce fertile offspring. This is a prerequisite for speciation.___________________________________________ ____________________________________________________ 15. What is Genetic Drift? In what kinds of situations is it likely to occur? (K) Genetic Drift is a random change in allele frequency ...
Horizontal and Vertical Gene Transfer
... inactivation, the incorporated genes are fixed and inherited. The acquisition of virulence or other functions by mobile elements is a rapid process, but that by fixation in the chromosome is slow. ...
... inactivation, the incorporated genes are fixed and inherited. The acquisition of virulence or other functions by mobile elements is a rapid process, but that by fixation in the chromosome is slow. ...