CH 10 Genetics: Vocabulary terms
... 14. ________________: “stronger” trait that shows up when the dominant allele is present; represented by a capital letter 15. ________________: “weaker” trait that shows up only when the dominant allele is not present; represented by a lowercase letter 16. ________________: states that every organis ...
... 14. ________________: “stronger” trait that shows up when the dominant allele is present; represented by a capital letter 15. ________________: “weaker” trait that shows up only when the dominant allele is not present; represented by a lowercase letter 16. ________________: states that every organis ...
2002-11-14: Quantitative Traits IV
... Epistatic interactions can inflate the additive or dominance components of genetic variance. Even when epistatic components are relatively small, there can still be strong epistatic effects because of the population context.` ...
... Epistatic interactions can inflate the additive or dominance components of genetic variance. Even when epistatic components are relatively small, there can still be strong epistatic effects because of the population context.` ...
Natural Selection Notes PowerPoint
... Natural Selectiondifferential success in survival and reproduction of individuals with different phenotypes (physical characteristics) resulting from interactions with their environments ...
... Natural Selectiondifferential success in survival and reproduction of individuals with different phenotypes (physical characteristics) resulting from interactions with their environments ...
Genetic Principles
... • He presented his work at the monastery, but others didn’t realize its significance. Since he wasn’t at a university, word of his work didn’t spread. He was forgotten for 34 years…. • In 1900 his work was rediscovered and its importance realized. Now he’s considered the Father of Genetics. ...
... • He presented his work at the monastery, but others didn’t realize its significance. Since he wasn’t at a university, word of his work didn’t spread. He was forgotten for 34 years…. • In 1900 his work was rediscovered and its importance realized. Now he’s considered the Father of Genetics. ...
IS IT GENETIC? How do genes, environment and chance interact to
... complex phenotype – one that can have a variety of different causes and modes of inheritance in different people multifactorial: a character that is determined by some unspecified combination of genetic and environmental factors polygenic: a character determined by the combined action of a number of ...
... complex phenotype – one that can have a variety of different causes and modes of inheritance in different people multifactorial: a character that is determined by some unspecified combination of genetic and environmental factors polygenic: a character determined by the combined action of a number of ...
Inheritance
... • Strictly speaking, this law applies only to genes on different, nonhomologous chromosomes or those far apart on the same chromosome • Genes located near each other on the same chromosome tend to be inherited together © 2011 Pearson Education, Inc. ...
... • Strictly speaking, this law applies only to genes on different, nonhomologous chromosomes or those far apart on the same chromosome • Genes located near each other on the same chromosome tend to be inherited together © 2011 Pearson Education, Inc. ...
Realized Heritability
... Realized Heritability Selection can act on any phenotypic variation, but can only cause evolutionary change if the variation is genetic. Population biologists often use an index called realized heritability, h2, to quantify the degree to which a trait in a population can be pushed by selection. To c ...
... Realized Heritability Selection can act on any phenotypic variation, but can only cause evolutionary change if the variation is genetic. Population biologists often use an index called realized heritability, h2, to quantify the degree to which a trait in a population can be pushed by selection. To c ...
chapter 13 lecture slides
... To run the animations you must be in Slideshow View. Use the buttons on the animation to play, pause, and turn audio/text on or off. Please note: once you have used any of the animation functions (such as Play or Pause), you must first click in the white background before you advance the next slide. ...
... To run the animations you must be in Slideshow View. Use the buttons on the animation to play, pause, and turn audio/text on or off. Please note: once you have used any of the animation functions (such as Play or Pause), you must first click in the white background before you advance the next slide. ...
Inheritance and Probability
... • When tossing a coin, the outcome of one toss has no impact on the outcome of the next toss. • Each toss is an independent event, just like the distribution of alleles into gametes. – Like a coin toss, each ovum from a heterozygous parent has a 1/2 chance of carrying the dominant allele and a 1/2 ...
... • When tossing a coin, the outcome of one toss has no impact on the outcome of the next toss. • Each toss is an independent event, just like the distribution of alleles into gametes. – Like a coin toss, each ovum from a heterozygous parent has a 1/2 chance of carrying the dominant allele and a 1/2 ...
Review handout A
... Autosomal recessive. Recessive because there is an affected offspring without an affected parent. It is autosomal because an X-linked trait cannot be passed to a daughter unless the father is affected (remember, a father cannot be a carrier for an X-linked trait since he has only one X) and it is no ...
... Autosomal recessive. Recessive because there is an affected offspring without an affected parent. It is autosomal because an X-linked trait cannot be passed to a daughter unless the father is affected (remember, a father cannot be a carrier for an X-linked trait since he has only one X) and it is no ...
Evolutionary Genetics
... possible ways in which a genetic incompatibility could occur with the second population. Once genetic incompatibilities have arisen between two separately evolving populations, the populations are no longer able to cross and produce fertile offspring. Speciation. ...
... possible ways in which a genetic incompatibility could occur with the second population. Once genetic incompatibilities have arisen between two separately evolving populations, the populations are no longer able to cross and produce fertile offspring. Speciation. ...
2015 Biology Spring Final Review
... Be able to identify what type of adaptation is described (structural, functional, behavioral). Then state how that adaptation is helping the organism maintain homeostasis in regards to conserving/releasing energy and/or ...
... Be able to identify what type of adaptation is described (structural, functional, behavioral). Then state how that adaptation is helping the organism maintain homeostasis in regards to conserving/releasing energy and/or ...
Genetic drift
Genetic drift (or allelic drift) is the change in the frequency of a gene variant (allele) in a population due to random sampling of organisms.The alleles in the offspring are a sample of those in the parents, and chance has a role in determining whether a given individual survives and reproduces. A population's allele frequency is the fraction of the copies of one gene that share a particular form. Genetic drift may cause gene variants to disappear completely and thereby reduce genetic variation.When there are few copies of an allele, the effect of genetic drift is larger, and when there are many copies the effect is smaller. In the early twentieth century vigorous debates occurred over the relative importance of natural selection versus neutral processes, including genetic drift. Ronald Fisher, who explained natural selection using Mendelian genetics, held the view that genetic drift plays at the most a minor role in evolution, and this remained the dominant view for several decades. In 1968, Motoo Kimura rekindled the debate with his neutral theory of molecular evolution, which claims that most instances where a genetic change spreads across a population (although not necessarily changes in phenotypes) are caused by genetic drift. There is currently a scientific debate about how much of evolution has been caused by natural selection, and how much by genetic drift.