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Populations Student Notes Part 2
Populations Student Notes Part 2

... !   German physician Wilhelm Weinberg formulated the same solution independently ...
14. Synthetic theory of evolution
14. Synthetic theory of evolution

... populations by (the migration of breeding individuals) Gene flow can increase the variation within a population by introducing novel alleles that were produced by mutation in some other population. Continued gene flow between populations makes their gene pools similar and reduces the possibility of ...
GLYPHOSATE RESISTANCE Background / Problem
GLYPHOSATE RESISTANCE Background / Problem

... Population Genetics and Probability  Probability is at the core of much of population genetics  Reproduction is a sampling process  Effects of mutation, gene flow, selection, and genetic drift must be seen as departures from expectations based on random ...
3-1 Section Summary
3-1 Section Summary

... Pea plants are useful for studying heredity because they have many traits that exist in only two forms. They also produce large numbers of offspring, making it easy to collect large amounts of data. Their flower structure makes it easy to set up crosses between specific plants. Mendel crossed two pe ...
CID IN ARABIAN HORSES
CID IN ARABIAN HORSES

... Two basic types of genetic action • Quantitative – Trait that is influenced by numerous different genes – Effects of many genes are added together to produce trait – Each gene only has small effect of trait – Most traits are quantitative ...
Gregor Mendel`s Discoveries- Mendel, a monk, discovered the basic
Gregor Mendel`s Discoveries- Mendel, a monk, discovered the basic

... - Regular blood transfusions and new drugs can help treat problems, but there is no cure - It is said that those who are carriers, having the sickle-cell trait, assists them in warding off malaria. 3. Consanguineous (same blood mating)- when members of a family mate, they are more likely to produce ...
Chapter 14 Power Point File
Chapter 14 Power Point File

... widow’s peaks, then her parents must be heterozygous for that gene If some siblings in the second generation lack a widow’ peak and one of the grandparents (first generation) also lacks one, then we know the other grandparent must be heterozygous and we can determine the genotype of almost all other ...
Chapter 11 – Introduction to Genetics
Chapter 11 – Introduction to Genetics

Chapter 11
Chapter 11

... P generation is true-breeding, which would produce identical offspring if allowed to selfpollinate. ...
What is Population Genetics?
What is Population Genetics?

... • Non-random Mating = mating between neighbors rather than by chance • Random Genetic Drift = if populations are small enough, by chance, sampling will result in a different allele frequency from one generation to the next. ...
Gregor Mendel
Gregor Mendel

... – P generation crossed to produce F1 generation – interrupted the self-pollination process by ...
File
File

... a population remain constant unless one or more factors cause those frequencies to change. ...
Gummy Bear Population Genetics
Gummy Bear Population Genetics

... the red allele would mean no red or orange gummy bears. 4. How is it different to think about genetics of a population instead of with two individuals? Individuals have only two copies of an allele. When looking at an individual or a breeding pair, you have no idea about the genetic variability avai ...
NOTES: CH 14 part 2 - Spokane Public Schools
NOTES: CH 14 part 2 - Spokane Public Schools

... Huntington’s Disease ...
14 – Mendel and the Gene Idea
14 – Mendel and the Gene Idea

... 6) EPISTASIS - Gene at one locus alters the phenotypic expression of a gene at another locus EX: Coat color pigment not deposited in hair without color gene; 7) PLEIOTROPY - one gene has multiple phenotypic effects EX: dwarfism; cystic fibrosis 8) MULTIFACTORIAL - Genetic component + environmental f ...
Genetics of Evolution - Ms. Chambers' Biology
Genetics of Evolution - Ms. Chambers' Biology

... Allele (Relative) Frequency- The percentage of an allele in the gene pool. Tells you whether a given allele is common or rare (%) ...
Chapter 11 tst rev answer
Chapter 11 tst rev answer

... 1. Genetic disorders can be caused by dominant or recessive alleles. TRUE 2. Individuals with albinism do not have melanin in their skin, hair, and eyes. TRUE ...
Mendel`s Hypotheses – Mendelian Theory of Heredity
Mendel`s Hypotheses – Mendelian Theory of Heredity

... Mendel’s Hypotheses – Mendelian Theory of Heredity: 1. For each inherited trait, an individual has ____copies of the gene—______________ 2. There are alternative versions of genes. Different versions are called its ___________ 3. When two different alleles occur together, one of them may be complete ...
ch. 14 Mendelian Genetics notes
ch. 14 Mendelian Genetics notes

... the product of their individual probabilities. Question: In a Mendelian cross between pea plants that are heterozygous for flower color (Pp), what is the probability that the offspring will be homozygous recessive? ...
Classical Model of Selection at a Single Locus
Classical Model of Selection at a Single Locus

... CLASSICAL MODEL OF SELECTION AT A SINGLE LOCUS THE MODEL: Same conditions as Hardy-Weinberg, but with selection included. Genetic system: 1) diploid population 2) sexual reproduction 3) random mating Selection 1) identical selection in both sexes 2) viability selection 3) constant selection on each ...
Evolution Review Spring 08 (Ch
Evolution Review Spring 08 (Ch

... by natural selection. 7. When one extreme phenotype is favored by natural selection. 8. When both extreme phenotypes are favored by natural selection. 9. The combined alleles of all the individuals in a population. 10. Feature that allows an organism to survive better in its environment. 11. Process ...
Heredity TEK 6F- Predict possible outcomes of various
Heredity TEK 6F- Predict possible outcomes of various

... TEK 6F- Predict possible outcomes of various genetic combinations such as monohybrid crosses, dihybrid crosses and non-Mendelian inheritance. ...
1. Genetics
1. Genetics

... • Learn the genotype of a (nonhuman) organism • Cross organism with homozygous recessive organism (aa) • If all offspring are Aa, parent was probably AA • If some of the offspring have the dominant trait and some have the recessive trait, parent was Aa ...
doc Midterm exam
doc Midterm exam

... d.) A large population has a mating system in which first cousins mate. e.) The population is maintained at a size of 20 individuals, and the mutation rate at the locus being examined is zero. Note: Inbreeding in a large population does not lead to loss of genetic variation. It simply reshuffles it ...
ANTHR1 - Study Guide for First Exam
ANTHR1 - Study Guide for First Exam

... 17. Denise can NOT role her tongue, but her biological brother Jorge can. What are the genotypes for Denise, Jorge, and their parents? 18. If we mate two people, both of whom are heterozygotes for a recessive trait (such as sickle-cell hemoglobin), what's the likelihood they will have a child who ex ...
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Inbreeding

Inbreeding is the sexual reproduction of offspring from the mating or breeding of individuals or organisms that are closely related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from incestuous sexual relationships and consanguinity.Inbreeding results in homozygosity, which can increase the chances of offspring being affected by recessive or deleterious traits. This generally leads to a decreased biological fitness of a population (called inbreeding depression), which is its ability to survive and reproduce. An individual who inherits such deleterious traits is referred to as inbred. The avoidance of such deleterious recessive alleles caused by inbreeding, via inbreeding avoidance mechanisms, is the main selective reason for outcrossing. Crossbreeding between populations also often has positive effects on fitness-related traits.Inbreeding is a technique used in selective breeding. In livestock breeding, breeders may use inbreeding when, for example, trying to establish a new and desirable trait in the stock, but will need to watch for undesirable characteristics in offspring, which can then be eliminated through further selective breeding or culling. Inbreeding is used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
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