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AP & Regents Biology - Whitman
AP & Regents Biology - Whitman

... Nothing in biology makes sense except in the light of evolution. ...
Hybridization and adaptive radiation
Hybridization and adaptive radiation

... suggest that such speciation is more likely than was previously thought when populations experience disruptive selection on quantitative traits that have broad variation determined by the additive effects of many genes [46,47]. Hybridization creates such variation instantaneously and simultaneously ...
biology i - Center for Technology Outreach
biology i - Center for Technology Outreach

... d. Discuss the characteristics and implications of both chromosomal and gene mutations. (DOK 2) • Significance of nondisjunction, deletion, substitutions, translocation, frame shift mutation in animals • Occurrence and significance of genetic disorders such as sickle cell anemia, Tay-Sachs disorder, ...
AP SUMMER 2016 Power Point
AP SUMMER 2016 Power Point

... organisms to their environment over time If an environment changes over time, natural selection may result in adaptation to these new conditions and may give rise to new species ...
1 Possible consequences of genes of major effect
1 Possible consequences of genes of major effect

... key role in producing phenotypic diversity, the details remain unclear. The strength, form and consistency of diversifying selection, as well as the specific target traits, remain unknown for most taxa (Endler, 1986). Attempts to better understand the nuances of selection are complicated by the inte ...
What Darwin`s Finches Can Teach Us about the Evolutionary Origin
What Darwin`s Finches Can Teach Us about the Evolutionary Origin

... species: how these processes happen and how to interpret them. All 14 species of Darwin’s finches are closely related, having been derived from a common ancestor 2 million to 3 million years ago. They live in the environment in which they evolved, and none has become extinct as a result of human act ...
Ch. 22 Darwinian View of Life
Ch. 22 Darwinian View of Life

... • In 1844, Darwin wrote an essay on natural selection as the mechanism of descent with modification, but did not introduce his theory publicly • Natural selection is a process in which individuals with favorable inherited traits are more likely to survive and reproduce • In June 1858, Darwin receiv ...
long program - Pan
long program - Pan

... ranging survey of asymmetry variation within and among species of animals and plants offers some of the strongest evidence to date that a 'genes as followers' mode of evolution may be much more common than previously thought. PART II) Development of bilaterian animals is often described as proceedi ...
Adaptation and Evolutionary Theory
Adaptation and Evolutionary Theory

... ing to a term (either newly coined or previously concerned with natural selection, i.e. with intraexisting). According to this view the project of specific intraenvironmental selection. Thus we will defining a term is either purely descriptive or be concerned with the adaptedness of individual purel ...
Ecotypes and the controversy over stages in the formation of new
Ecotypes and the controversy over stages in the formation of new

... He also clarified that ecotypes are the product of natural selection (Turesson, 1925). Turesson’s work established foremost that phenotypic differences among populations derived from particular ecoregions were not a result of chance. Instead, these genetic differences were now considered to be a res ...
Review Mitonuclear Ecology - Oxford Academic
Review Mitonuclear Ecology - Oxford Academic

... Mol. Biol. Evol. 32(8):1917–1927 doi:10.1093/molbev/msv104 Advance Access publication April 29, 2015 ...
The polymorphic prelude to Bateson–Dobzhansky–Muller
The polymorphic prelude to Bateson–Dobzhansky–Muller

... differences relative to each other, often quantified at loci such as synonymous sites that are presumed to have negligible functional effects when altered. Polygenic selection: selection on a phenotype whose trait value is influenced by variation at many genes. Polyploidization: genome-wide chromoso ...
Two Sets to Build Difference
Two Sets to Build Difference

... speciation! in! Darwin’s! finches.! The! populations! were! small! and! perhaps! most! importantly,! isolated!from!mainland!South!America.!This!allowed!sexual!reproduction!and!individual!cases! of! mutation! to! introduce! advantageous! traits! and! disadvantageous! traits! that! would! not! be! dif ...
16Insect Evolutionary
16Insect Evolutionary

... others without fusion into a single gene pool. Stable coexistence is possible only if closely related sexual species are somewhat reproductively isolated and also ecologically distinct. Perhaps the major challenge in understanding speciation is therefore to explain how genes for ecological distinctn ...
III.13 - Thermal Adaptation Lab
III.13 - Thermal Adaptation Lab

... common descent; since any two species have inherited some phenotypes from a common ancestor, common descent can inflate or mask signals of adaptation. The second approach is to expose experimental populations to controlled environments and then quantify the genetic divergence of traits (see chapter ...
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Introduction

... Those individuals that compete for the resources most effectively have increased chance of reproduction ...
The devil is in the details: genetic variation in
The devil is in the details: genetic variation in

... will likely lead to the loss of some rare alleles, they will generally not substantially reduce genetic variance in quantitative traits (determined by common variants at multiple loci; Fig. 1). Mayr (1965a) further argued that new mutations will arise reasonably quickly in founding populations as op ...
Teaching Through Science Trade Books MacLaren Stephanie
Teaching Through Science Trade Books MacLaren Stephanie

... protection and movement. These complex organisms passed particular qualities to their offspring and future generations. This process eventually produced all the different species that have lived on our planet. When two or more species evolve from a common ancestor and become increasingly different o ...
Evolution and Human Nature Arthur J. Robson The Journal of
Evolution and Human Nature Arthur J. Robson The Journal of

... Another evolutionary argument bearing on impatience concerns whether, when other things are equal, an individual would prefer to have children earlier or later. Given that each individual has more than one offspring on average (so that positive population growth occurs), a faster rate of growth can ...
Introduction: Biology Today Multiple
Introduction: Biology Today Multiple

... The collared lizard is a species found in the Desert Southwest. Male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. Your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. Your ...
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- Philsci

... classification developed in the Systema Naturae makes obvious the need for a basically intelligible structure manifested in the world. Even though Linnaeus understood his classificatory system as “artificial” rather than “natural” (that is, a reflection of the convenience of certain concepts with r ...
Adaptation in Natural Microbial Populations
Adaptation in Natural Microbial Populations

... Plate Count Anomaly. Sequencing of the phylogenetic marker gene 16S rRNA gives broad insights into community composition and has become the most common approach for characterizing microbial diversity (Ward et al. 1990). However, it is also possible to sequence genes known to be involved in specific ...
SALVAGING THE BIOLOGICAL DESIGN ARGUMENT IN LIGHT OF
SALVAGING THE BIOLOGICAL DESIGN ARGUMENT IN LIGHT OF

... The argument is also related to the theistic argument from beauty: theists often feel that the existence of God can make sense of the beauty of nature´s order, such as that seen in rainbows and snowflakes. If such phenomena can be at least weak evidence for theism despite our ability to explain them ...
Biology, 8e (Campbell) Chapter 22 Descent with Modification: A
Biology, 8e (Campbell) Chapter 22 Descent with Modification: A

... Skill: Application/Analysis 3) What was the prevailing notion prior to the time of Lyell and Darwin? A) Earth is a few thousand years old, and populations are unchanging. B) Earth is a few thousand years old, and populations gradually change. C) Earth is millions of years old, and populations rapidl ...
S 7.3 Biological evolution accounts for the diversity of species
S 7.3 Biological evolution accounts for the diversity of species

... Scientific theories are always supported by a great deal of evidence. Evidence consists of facts that can be confirmed by testing or observation. A huge amount of evidence supports the theory of evolution. Section 2 of this chapter identifies and explains this evidence. Look at the incomplete graphi ...
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Saltation (biology)

In biology, saltation (from Latin, saltus, ""leap"") is a sudden change from one generation to the next, that is large, or very large, in comparison with the usual variation of an organism. The term is used for nongradual changes (especially single-step speciation) that are atypical of, or violate gradualism - involved in modern evolutionary theory.
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