Use core knowledge to give reasons for genetic variation and change.
... sexual reproduction (meiosis) – crossing over; independent assortment; mutation Identify factors that lead to Define Genetic Equilibrium. change in a gene pool. Identified as immigration; mutation; natural selection; population size; genetic drift; mate selection AND environmental variation leading ...
... sexual reproduction (meiosis) – crossing over; independent assortment; mutation Identify factors that lead to Define Genetic Equilibrium. change in a gene pool. Identified as immigration; mutation; natural selection; population size; genetic drift; mate selection AND environmental variation leading ...
Agents of Evolutionary Change
... larger amounts of food and therefore lived longer and healthier lives. They went on to reproduce until eventually there were only giraffes with long necks and the short neck gene had been eliminated. ...
... larger amounts of food and therefore lived longer and healthier lives. They went on to reproduce until eventually there were only giraffes with long necks and the short neck gene had been eliminated. ...
Evolutionary Concepts I. The Theory of Evolution Evolution is a
... by forces in the environment like natural selection, but by what females or males find attractive. What the female finds attractive might not always be in the best interest of the male’s long term survival, but if a male does not mate, his genes die when he does. Therefore: Reproduction is as import ...
... by forces in the environment like natural selection, but by what females or males find attractive. What the female finds attractive might not always be in the best interest of the male’s long term survival, but if a male does not mate, his genes die when he does. Therefore: Reproduction is as import ...
Evolutionary Concepts
... d. Sexual selection: There are some adaptations that seem to contradict natural selection. For instance, why does a male peacock have such bright feathers? Doesn’t that make him more obvious to predators? The answer is yes; it does make him more obvious to predators. Why, then, did the peacock evolv ...
... d. Sexual selection: There are some adaptations that seem to contradict natural selection. For instance, why does a male peacock have such bright feathers? Doesn’t that make him more obvious to predators? The answer is yes; it does make him more obvious to predators. Why, then, did the peacock evolv ...
Genetics Study Notes
... a. One species of ground finch (flightless bird) thrived on Island Alpha for thousands of years. It had small beaks and ate the soft, succulent seeds that were produced by the plants on the island. One day there was a huge volcanic eruption which killed many, but not all of the birds on the island. ...
... a. One species of ground finch (flightless bird) thrived on Island Alpha for thousands of years. It had small beaks and ate the soft, succulent seeds that were produced by the plants on the island. One day there was a huge volcanic eruption which killed many, but not all of the birds on the island. ...
Honors Biology Review Sheet: Population Evolution Definitions and
... Outgroup: people outside one’s own group, especially as considered to be inferior or alien; a group perceived as other than one’s own. Primitive characters: ?? Derived characters: characteristics that appears in recent parts of a lineage, but not in its older members. Genetic drift: random changes i ...
... Outgroup: people outside one’s own group, especially as considered to be inferior or alien; a group perceived as other than one’s own. Primitive characters: ?? Derived characters: characteristics that appears in recent parts of a lineage, but not in its older members. Genetic drift: random changes i ...
No Slide Title
... shown as means 95% confidence interval) from sympatry into each of two allopatric recipient populations (eastern (d) and western allopatry (e)), as measured in mitochondrial (mtDNA) and nuclear (nucDNA) genomes (the three estimates in each population and genome reflect three runs of ...
... shown as means 95% confidence interval) from sympatry into each of two allopatric recipient populations (eastern (d) and western allopatry (e)), as measured in mitochondrial (mtDNA) and nuclear (nucDNA) genomes (the three estimates in each population and genome reflect three runs of ...
Enriched Biology DeCamp BB3
... 3. In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur are… 4. Darwin’s theory of evolution is based on the idea(s) of heritable variation and______________________. 5. All the genes of all members of a particular population make up the population ...
... 3. In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur are… 4. Darwin’s theory of evolution is based on the idea(s) of heritable variation and______________________. 5. All the genes of all members of a particular population make up the population ...
Populations Evolve!
... 5. Natural Selection Differential survival & reproduction due to changing environmental conditions climate change food source availability predators, parasites, diseases toxins ...
... 5. Natural Selection Differential survival & reproduction due to changing environmental conditions climate change food source availability predators, parasites, diseases toxins ...
D.1 and D.2 Practice Test KEY
... 2. example of homologous and example of analogous; (examples of both are needed) (c) a. transient polymorphism Is when there are two alleles in a gene pool/ a species is polymorphic; b. In transient polymorphism one allele gradually replacing another; c. Transient polymorphism is due to strong sel ...
... 2. example of homologous and example of analogous; (examples of both are needed) (c) a. transient polymorphism Is when there are two alleles in a gene pool/ a species is polymorphic; b. In transient polymorphism one allele gradually replacing another; c. Transient polymorphism is due to strong sel ...
Chapter 18 Worksheet
... a. Would the two species of bush babies reproduce with each other? b. Would a premating mechanism separate the two species of bush babies? c. Could the two species of bush babies eat the same food? d. Would the two species of bush babies have to look dissimilar enough to be distinguishable by the na ...
... a. Would the two species of bush babies reproduce with each other? b. Would a premating mechanism separate the two species of bush babies? c. Could the two species of bush babies eat the same food? d. Would the two species of bush babies have to look dissimilar enough to be distinguishable by the na ...
EVOLUTION
... Population size remains stable Resources are limited Individuals compete for survival There is variation among individuals in a population Much variation is heritable Only the most fit individuals survive Evolution occurs as advantageous traits accumulate ...
... Population size remains stable Resources are limited Individuals compete for survival There is variation among individuals in a population Much variation is heritable Only the most fit individuals survive Evolution occurs as advantageous traits accumulate ...
Evolution - SchoolNotes
... They can affect a single base, a length of DNA or an entire chromosome ...
... They can affect a single base, a length of DNA or an entire chromosome ...
Modern theory of Evolution…Part4
... III. Population Genetics • Species: A group of organisms that look alike and are capable of reproducing and creating fertile offspring. • Population: A group of individuals of the same species living in the same place at the same time. – Ex: homo sapiens in Hawaii – Ex: Stray cats at Kalaheo High S ...
... III. Population Genetics • Species: A group of organisms that look alike and are capable of reproducing and creating fertile offspring. • Population: A group of individuals of the same species living in the same place at the same time. – Ex: homo sapiens in Hawaii – Ex: Stray cats at Kalaheo High S ...
Intro To Evolutionary Process
... Now that we have established what evolution is, how do we get genes to change? There are 5 mechanisms that result in a change in genes and new alleles to form…. 1. Mutations- missense mutations are point level changes in the DNA. A single mutation can have a large effect, but in many cases, evoluti ...
... Now that we have established what evolution is, how do we get genes to change? There are 5 mechanisms that result in a change in genes and new alleles to form…. 1. Mutations- missense mutations are point level changes in the DNA. A single mutation can have a large effect, but in many cases, evoluti ...
Population vocab
... Changes in the allele frequency in a small population that are due to random chance and don’t follow the laws of probability ...
... Changes in the allele frequency in a small population that are due to random chance and don’t follow the laws of probability ...
Types of Natural Selection
... Suppose termites in an area begin to build deeper nests. Anteaters with long tongues could more effectively prey on termites than those with short or average tongue length ...
... Suppose termites in an area begin to build deeper nests. Anteaters with long tongues could more effectively prey on termites than those with short or average tongue length ...
Darwin`s Ideas and Natural Selection
... Acts upon the phenotype of the population Based on Darwin’s idea that resources are limited and that there is competition for those resources. • Adaptation = a genetic variation favored by natural selection. ...
... Acts upon the phenotype of the population Based on Darwin’s idea that resources are limited and that there is competition for those resources. • Adaptation = a genetic variation favored by natural selection. ...
Evolution as Genetic Change
... alleles onto subsequent generations Organisms reproduce – alleles pass on to subsequent generations EVOLUTION = change over time in the relative frequencies of alleles in a POPULATION Populations evolve; not organisms Natural Selection on Single Gene Traits Natural selection on single gene t ...
... alleles onto subsequent generations Organisms reproduce – alleles pass on to subsequent generations EVOLUTION = change over time in the relative frequencies of alleles in a POPULATION Populations evolve; not organisms Natural Selection on Single Gene Traits Natural selection on single gene t ...
Population Genetics and Speciation
... extreme variation of a trait have a greater fitness than individual with the average form of the trait. ...
... extreme variation of a trait have a greater fitness than individual with the average form of the trait. ...
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.