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Evolutionary forces and population differentiation
Evolutionary forces and population differentiation

... 7. At the bottom, change GENERATIONS from 25 to 200, and RUN again. You’re now observing the changes over a period 8 times longer than before. Do the answers to any of the above questions change? 8. Now set population 1 to be 50 individuals, and population 2 to be 5 individuals. 9. Reset GENERATIONS ...
Hardy-Weinberg Formula
Hardy-Weinberg Formula

... from older ones, as most people assume. It is also the minor changes within a species from generation to generation over long periods of time that can result in the gradual transition to new species. Hardy, Weinberg, and the population geneticists who followed them came to understand that evolution ...
genetics
genetics

... 42. A 1: 1 phenotypic ratio in a test cross indicates that 1. the alleles are dominant 2. one parent must have been homozygous recessive 3. the dominant parent is a heterozygous 4. the alleles segregated independently 43. Two true breeding red, axial flowered and white, terminal flowered peas are cr ...
Alien Alleles - Spring Lake Park Schools
Alien Alleles - Spring Lake Park Schools

Genetics review
Genetics review

... 45. The gametes of human males and females have the same number of chromosomes. Which best ...
Hardy-Weinberg Lab Background: In 1908, two scientists, Godfrey H
Hardy-Weinberg Lab Background: In 1908, two scientists, Godfrey H

... Now mate as you did in Simulation 1. No peeking at your cards in-between romantic encounters! At the end of five matings, sit down and your teacher will tell you if you survive or not. You see, you may have been in the wrong place at the wrong time and chance alone (we call this genetic drift) deter ...
Allele Frequency Lab
Allele Frequency Lab

... • To see how natural selection acts on the phenotype rather than the genotype of an organism. • To discover that alleles that are lethal in a homozygous individual may be carried in a heterozygous and thus maintained in a gene pool. • To determine that variation within a species increases the likeli ...
Genetics Review Questions PPT
Genetics Review Questions PPT

... = An allele that MASKS the presence of another allele Red and white flowers producing pink offspring is an example of Incomplete dominance _______________________ Codominance ...
Mathematical Modeling of Population Genetics
Mathematical Modeling of Population Genetics

... a genotype including the trait of polydactyly can expect half of her children to express the trait as well. De…nition 17 (3)The probability a trait will survive based on its ability to breed is called survivorship. De…nition 18 (3)Any generation that follows after the 1st is called a …lial generatio ...
Hardy-Weinberg Solutions
Hardy-Weinberg Solutions

... A group of 1000 Hairy Ainu from Northern Japan decide to move to Southern California where they can surf without worrying about typhoons. Although they are called Hairy Ainu, only 640 of the group actually have this dominant trait. As a physical anthropologist you are curious about how many alleles ...
B - JhaveriChemBioWiki
B - JhaveriChemBioWiki

... Yes. In 15 minutes, you will have 20 kids. You will need to find someone in the class to mate with. We will demonstrate how this works. ...
PowerPoint - University of Arizona
PowerPoint - University of Arizona

... One feature of a selective sweep are derived alleles at high frequency. Under neutrality, older alleles are at higher frequencies. Sabeti et al (2002) note that under a sweep such high frequency young alleles should (because of their recent age) have much longer regions of LD than expected. Wang et ...
Chapter 6 - Speedway High School
Chapter 6 - Speedway High School

... As you learned, the units of inheritance that Mendel studied are now called genes. You can think of a gene as a piece of DNA that stores instructions to make a certain protein. Each gene is located at a particular place on a chromosome called a locus. Just like a house has an address on a street, a ...
PTC Genetics - Flinn Scientific
PTC Genetics - Flinn Scientific

... evolution independently in 1908. They used mathematical modeling of probability to predict that gene pool frequencies are inherently stable but that continual evolution must be expected in all populations. Hardy and Weinberg concluded that evolution would not occur in a population if all of the foll ...
Punnett Squares
Punnett Squares

... throats in Goonie birds. Make a cross between a ...
Probability of Traits in a Population
Probability of Traits in a Population

genetics notes_1
genetics notes_1

... Albinism is the absence of skin pigmentation and is a recessive trait found in humans and other animals. In the human population about 1/20,000 individuals is an albino. Normal pigmentation (A) is dominant to albinism (a). If an albino woman marries a homozygous normal man, what is the likelihood th ...
Hardy Weinberg Equiibrium with more than 2 alleles
Hardy Weinberg Equiibrium with more than 2 alleles

...  athletic ability,  skin color. ...
Pedigrees and Autosomal Inheritance - Emery
Pedigrees and Autosomal Inheritance - Emery

... 2) Affects males and females equally. 3) Once a trait is no longer in the family, it will not reappear. ...
GENETICS WEBQUEST
GENETICS WEBQUEST

CHAPTER 10
CHAPTER 10

... self-pollination Covered each flower with a cloth bag He traced traits through the several generations copyright cmassengale ...
Segregation, Assortment, and Dominance Relationships
Segregation, Assortment, and Dominance Relationships

... information for the correct amino acid sequence; Therefore, its protein product in nonfunctional In the heterozygote, the dominant allele encodes sufficient production of the protein to produce the dominant phenotype. This is also called complete dominance ...
Chapter 11 PowerPoint
Chapter 11 PowerPoint

... Sex-Linked Disorders • An allele inherited on a sex chromosome is called a sex-linked gene. • Color blindness is a sex-linked disorder in which people ...
Grade/Subject 6-8 Science Topic Genetics and Heredity Task Title
Grade/Subject 6-8 Science Topic Genetics and Heredity Task Title

... For teacher notes, T will have to advise students of the advantages/disadvantages of the various phenotypes. For example, round teeth are herbivores. This is evolving into a board game. Students will create or be given a creature with a random group of phenotypes and genotypes. Their creature will t ...
Evolution exam questions
Evolution exam questions

... a. they prevent selection from acting on the alleles within the inverted region, thereby increasing genetic diversity. b. they prevent specific groups of alleles from being separated by crossing-over, allowing them to be inherited together as single "supergenes." c. mutation rates are higher in chro ...
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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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