complementary base pairing

describes the manner in which the nitrogenous bases of the DNA molecules align with each other.They are also responsible for the double-helix structure of DNA.

development over time of increasing similarity between two unrelated species due to Natural Selection

production over time of decreasing similarity between species due to the death of those members of each species that most resemble each other

deoxyribonucleic acid (DNA)

polymer of nucleotides that constitutes the genetic material of most organisms. DNA controls the features of cells by containing the chemical recipes for all the proteins the cells produce

a helix or spiral consisting of two strands in the surface of a cylinder that coil around ist axis

a gradual change in the characteristics of a population of animals or plants over successive Generations: accounts for the origin of existing species from ancestors unlike them

change in the gene frequencies of a population caused by the introduction of genotypes from another population, which occurs when individuals in the population interbreed with members of another population

random changes to the gene frequencies in the gene pool of a population or species

species tend to accumulate changes fairly steadly

feature resulting from a change in the genetic material. Mutations can occur at the gene level, which disables the production of a specific protein, or at the chromosome leve, where the wrong numbers of chromosome, or broken chromosomes wind up in daughte

a process resulting in the survival of those individuals from a population of animals or plants that are best adapted to the prevailing environmental conditions. The survivors tend to produce more offspring than those less well adapted, so that the chara

are one of the fundamental components of nucleic acids, such as DNA.

mating of individuals having more traits in commmon than likely in random mating

punctuated equilibrium model

the theory that speciation occurs in spurts of major genetic alterations that punctuate Long periods of Little Change

development of a new species. A population of a species can become isolated from the rest of the species. Without being able to share a commong gene pool the two groups will evolve independently.

sugar-phosphate backbone

forms the structural Framework of nucleic acids,including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

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SLS Bio 11 Evolution

SLS Bio 11 Luisa Malgowski

Term	Definition
complementary base pairing	describes the manner in which the nitrogenous bases of the DNA molecules align with each other.They are also responsible for the double-helix structure of DNA.
convergent evolution	development over time of increasing similarity between two unrelated species due to Natural Selection
divergent evolution	production over time of decreasing similarity between species due to the death of those members of each species that most resemble each other
deoxyribonucleic acid (DNA)	polymer of nucleotides that constitutes the genetic material of most organisms. DNA controls the features of cells by containing the chemical recipes for all the proteins the cells produce
double helix	a helix or spiral consisting of two strands in the surface of a cylinder that coil around ist axis
evolutionary change	a gradual change in the characteristics of a population of animals or plants over successive Generations: accounts for the origin of existing species from ancestors unlike them
gene flow	change in the gene frequencies of a population caused by the introduction of genotypes from another population, which occurs when individuals in the population interbreed with members of another population
genetic drift	random changes to the gene frequencies in the gene pool of a population or species
gradual change model	species tend to accumulate changes fairly steadly
mutation	feature resulting from a change in the genetic material. Mutations can occur at the gene level, which disables the production of a specific protein, or at the chromosome leve, where the wrong numbers of chromosome, or broken chromosomes wind up in daughte
natural selection	a process resulting in the survival of those individuals from a population of animals or plants that are best adapted to the prevailing environmental conditions. The survivors tend to produce more offspring than those less well adapted, so that the chara
nitrogenous base	are one of the fundamental components of nucleic acids, such as DNA.
non-random mating	mating of individuals having more traits in commmon than likely in random mating
punctuated equilibrium model	the theory that speciation occurs in spurts of major genetic alterations that punctuate Long periods of Little Change
speciation	development of a new species. A population of a species can become isolated from the rest of the species. Without being able to share a commong gene pool the two groups will evolve independently.
sugar-phosphate backbone	forms the structural Framework of nucleic acids,including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

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