BIO152 Hardy Weinberg
... Natural selection is acting on the gene Genetic drift has affected the allele frequencies Individuals (thus alleles) move between populations—gene flow from migration Mutation has affected the allele(s) Individuals are not mating randomly ...
... Natural selection is acting on the gene Genetic drift has affected the allele frequencies Individuals (thus alleles) move between populations—gene flow from migration Mutation has affected the allele(s) Individuals are not mating randomly ...
Exploring genetic variation
... classroom?” You could further extend the students by asking them to share the good things about having increased diversity in the classroom. 9. Explain that diversity is due to there being many different parents within the classroom. Our parents pass on genes to us that are similar to the ones they ...
... classroom?” You could further extend the students by asking them to share the good things about having increased diversity in the classroom. 9. Explain that diversity is due to there being many different parents within the classroom. Our parents pass on genes to us that are similar to the ones they ...
Climbing in the tree of life
... The Jacobin has the feathers so much reversed along the back of the neck that they form a hood, a nd it has, proportionally to its size, much elongated wing and tail feathers. The trumpeter and laugher, as their names express, utter a very different coo from the other breeds. The fantail has thirty ...
... The Jacobin has the feathers so much reversed along the back of the neck that they form a hood, a nd it has, proportionally to its size, much elongated wing and tail feathers. The trumpeter and laugher, as their names express, utter a very different coo from the other breeds. The fantail has thirty ...
Evolutionary Genetics Cheat Sheet
... 1. For every trait a person has, she/he has TWO ALLELES (alleles are different forms of a gene, sort of like Accords and Civics are different forms of Hondas). One allele came from the person’s mom and the other allele came from the person’s dad. 2. Some alleles are DOMINANT others are RECESSIVE, an ...
... 1. For every trait a person has, she/he has TWO ALLELES (alleles are different forms of a gene, sort of like Accords and Civics are different forms of Hondas). One allele came from the person’s mom and the other allele came from the person’s dad. 2. Some alleles are DOMINANT others are RECESSIVE, an ...
Genetics Slides
... (G.T.C.A.) for their “code,” changes are necessary to give rise to new species. § A concept better known as genetic variation. – Observed at the taxonomic levels (D.K.P.C.O.F.G.s.) ...
... (G.T.C.A.) for their “code,” changes are necessary to give rise to new species. § A concept better known as genetic variation. – Observed at the taxonomic levels (D.K.P.C.O.F.G.s.) ...
Evolution and the Origins of Disease
... conditions, such as pain, fever, cough, vomiting and anxiety, are actually neither diseases nor design defects but rather are evolved defenses. Second, conflicts with other organisms—Escherichia coli or crocodiles, for instance—are a fact of life. Third, some circumstances, such as the ready availab ...
... conditions, such as pain, fever, cough, vomiting and anxiety, are actually neither diseases nor design defects but rather are evolved defenses. Second, conflicts with other organisms—Escherichia coli or crocodiles, for instance—are a fact of life. Third, some circumstances, such as the ready availab ...
Biology 162 Discussion section Week 8 Problems in Mendelian
... genotypes are AA, Aa, and aa. There are six possible crossings that can be made between these genotypes (for example, AA × AA, AA × Aa, etc.). Show the expected proportions of the genotypes and phenotypes in the F1 offspring from all six possible crossings. 2. Suppose that the allele for red flowers ...
... genotypes are AA, Aa, and aa. There are six possible crossings that can be made between these genotypes (for example, AA × AA, AA × Aa, etc.). Show the expected proportions of the genotypes and phenotypes in the F1 offspring from all six possible crossings. 2. Suppose that the allele for red flowers ...
Evolution and the Origins of Disease
... conditions, such as pain, fever, cough, vomiting and anxiety, are actually neither diseases nor design defects but rather are evolved defenses. Second, conflicts with other organisms—Escherichia coli or crocodiles, for instance—are a fact of life. Third, some circumstances, such as the ready availab ...
... conditions, such as pain, fever, cough, vomiting and anxiety, are actually neither diseases nor design defects but rather are evolved defenses. Second, conflicts with other organisms—Escherichia coli or crocodiles, for instance—are a fact of life. Third, some circumstances, such as the ready availab ...
Document
... but – translation, or incorrect translation • Nucleotide changes leading to + transcription, but incorrect translation leading to non-functional protein ...
... but – translation, or incorrect translation • Nucleotide changes leading to + transcription, but incorrect translation leading to non-functional protein ...
biology 30•genetics worksheet 1
... you think he or she would have the same probability of being a PKU carrier as your randomly selected mate? Explain. ...
... you think he or she would have the same probability of being a PKU carrier as your randomly selected mate? Explain. ...
Document
... 22. Which of the following is the best example of genetic drift? a. a species of fish evolving with greater speed over time to evade predators b. a rhino breeding more successfully because it has evolved a thicker coat over timer c. a fire destroying most of the remaining members of an isolated gor ...
... 22. Which of the following is the best example of genetic drift? a. a species of fish evolving with greater speed over time to evade predators b. a rhino breeding more successfully because it has evolved a thicker coat over timer c. a fire destroying most of the remaining members of an isolated gor ...
Chapter 5 - SchoolRack
... Mom is Heterozygous for Big Nose: Nn Dad is Heterozygous for Big Nose: Nn What is the chance you’ll have a big nose? Do the cross! ...
... Mom is Heterozygous for Big Nose: Nn Dad is Heterozygous for Big Nose: Nn What is the chance you’ll have a big nose? Do the cross! ...
Lecture 4 and 5 notes
... Henry Harris, began the modern era of molecular investigations of genetic diversity) Adh gene in Drosophila melanogaster: most or all populations have two alleles, AdhF and AdhS (fast and slow). If we looked only at a monomorphic population, we wouldn't know there were two alleles; also a very small ...
... Henry Harris, began the modern era of molecular investigations of genetic diversity) Adh gene in Drosophila melanogaster: most or all populations have two alleles, AdhF and AdhS (fast and slow). If we looked only at a monomorphic population, we wouldn't know there were two alleles; also a very small ...
B - El Camino College
... C) he knew that there were many varieties available with distinctive characteristics. D) all of the above. 2. Human height shows a continuous variation from the very short to the very tall. Height is most likely controlled by: A) epistatic genes. B) environmental factors. C) sex-linked genes. D) mul ...
... C) he knew that there were many varieties available with distinctive characteristics. D) all of the above. 2. Human height shows a continuous variation from the very short to the very tall. Height is most likely controlled by: A) epistatic genes. B) environmental factors. C) sex-linked genes. D) mul ...
populations_lecture
... There is NO spatial structure: in effect all populations are equally close to all other populations (no isolation by distance) Everything is at equilibrium, nothing is changing. No selection no mutation ...
... There is NO spatial structure: in effect all populations are equally close to all other populations (no isolation by distance) Everything is at equilibrium, nothing is changing. No selection no mutation ...
How many genes are responsible for phenotypic differences
... Most direct route from phenotype to molecules Does not require species to be crossable or closely related Requires good knowledge of development Special tools and techniques must often be developed Hard to go from correlation to functional proof ...
... Most direct route from phenotype to molecules Does not require species to be crossable or closely related Requires good knowledge of development Special tools and techniques must often be developed Hard to go from correlation to functional proof ...
the selective value of alleles underlying polygenic traits
... genetics requires accurate information on the intensity of selection operating on individual alleles. Nowhere is this more apparent than in the evaluation of the assumptions underlying the neutral theory of molecular evolution (KIMURA1983a,b). Yet, the direct estimation of selection coefficients is ...
... genetics requires accurate information on the intensity of selection operating on individual alleles. Nowhere is this more apparent than in the evaluation of the assumptions underlying the neutral theory of molecular evolution (KIMURA1983a,b). Yet, the direct estimation of selection coefficients is ...
Monohybrid Crosses - Life is a journey: Mr. T finding his way
... Alleles – different forms of a gene F1 generation – the offspring of two parents F2 generation – the offspring of parents from F1 generation Homozygous – having two identical alleles of a gene (have same allele) Heterozygous – having two different alleles of a gene ...
... Alleles – different forms of a gene F1 generation – the offspring of two parents F2 generation – the offspring of parents from F1 generation Homozygous – having two identical alleles of a gene (have same allele) Heterozygous – having two different alleles of a gene ...
Incomplete Dominance & Codominance
... Punnett squares - probability diagram illustrating the possible offspring of a mating. Ss X Ss ...
... Punnett squares - probability diagram illustrating the possible offspring of a mating. Ss X Ss ...
MEIOSIS SEXUAL REPRODUCTION
... paternal OR maternal #1 chromosome, paternal or maternal chromosome #2, etc. • This is known as independent assortment. • While the homologous pairs are matched in metaphase 1, they can trade pieces of DNA = crossing over • This creates lots of genetic variation (good for the human species) • Crossi ...
... paternal OR maternal #1 chromosome, paternal or maternal chromosome #2, etc. • This is known as independent assortment. • While the homologous pairs are matched in metaphase 1, they can trade pieces of DNA = crossing over • This creates lots of genetic variation (good for the human species) • Crossi ...
Lecture_15_Pop Dynamics_Humans_Part II
... Using a Testcross to Determine an Unknown Genotype – A testcross is a mating between • An individual of unknown genotype and a ...
... Using a Testcross to Determine an Unknown Genotype – A testcross is a mating between • An individual of unknown genotype and a ...
Polymorphism (biology)
Polymorphism in biology is said to occur when two or more clearly different phenotypes exist in the same population of a species—in other words, the occurrence of more than one form or morph. In order to be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating).Polymorphism as described here involves morphs of the phenotype. The term is also used somewhat differently by molecular biologists to describe certain point mutations in the genotype, such as SNPs (see also RFLPs). This usage is not discussed in this article.Polymorphism is common in nature; it is related to biodiversity, genetic variation and adaptation; it usually functions to retain variety of form in a population living in a varied environment. The most common example is sexual dimorphism, which occurs in many organisms. Other examples are mimetic forms of butterflies (see mimicry), and human hemoglobin and blood types.According to the theory of evolution, polymorphism results from evolutionary processes, as does any aspect of a species. It is heritable and is modified by natural selection. In polyphenism, an individual's genetic make-up allows for different morphs, and the switch mechanism that determines which morph is shown is environmental. In genetic polymorphism, the genetic make-up determines the morph. Ants exhibit both types in a single population.Polymorphism also refers to the occurrence of structurally and functionally more than two different types of individuals, called zooids within the same organism. It is a characteristic feature of Cnidarians.For example, in Obelia there are feeding individuals, the gastrozooids; the individuals capable of asexual reproduction only, the gonozooids, blastostyles and free-living or sexually reproducing individuals, the medusae.