Evolution Exam practice - AP-Science-Experience-JMHS
... 18) In peas, a gene controls flower color such that R = red and r = white. In an isolated pea patch, there were 36 red flowers and 64 white flowers. Assuming HardyWeinberg equilibrium, what is the value of q for this population? A) 0.60 B) 0.64 C) 0.80 D) 0.75 E) 0.36 19) Natural selection is most c ...
... 18) In peas, a gene controls flower color such that R = red and r = white. In an isolated pea patch, there were 36 red flowers and 64 white flowers. Assuming HardyWeinberg equilibrium, what is the value of q for this population? A) 0.60 B) 0.64 C) 0.80 D) 0.75 E) 0.36 19) Natural selection is most c ...
What drives evolution?
... • all the members of a species living in a defined area • speciation • the generation of new, separate species from a single population ...
... • all the members of a species living in a defined area • speciation • the generation of new, separate species from a single population ...
Exam Review 5 - Iowa State University
... c. Jean-Baptiste de Lamark d. James Hutton/Charles Lyell 6. Prevents the interspecies hybrid zygote from developing into a viable, fertile offspring. a. Prezygotic isolating mechanism b. Postzygotic isolating mechanism 7. What is the smallest unit that can evolve? a. Individual b. Population c. Spec ...
... c. Jean-Baptiste de Lamark d. James Hutton/Charles Lyell 6. Prevents the interspecies hybrid zygote from developing into a viable, fertile offspring. a. Prezygotic isolating mechanism b. Postzygotic isolating mechanism 7. What is the smallest unit that can evolve? a. Individual b. Population c. Spec ...
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... mountain range or desert which divides a population, but there are also some non-geographic means. For example, if one group of animals within a population gradually evolve a different mating season, eventually a separate species could evolve even though the population is still in one geographical a ...
... mountain range or desert which divides a population, but there are also some non-geographic means. For example, if one group of animals within a population gradually evolve a different mating season, eventually a separate species could evolve even though the population is still in one geographical a ...
Meiosis Reading Guide Ch.13
... In species that reproduce sexually, the behavior of chromosomes during meiosis and fertilization is responsible for most of the variation that arises each generation. There are three mechanisms that contribute to the genetic variation arising from sexual reproduction: independent assortment of chrom ...
... In species that reproduce sexually, the behavior of chromosomes during meiosis and fertilization is responsible for most of the variation that arises each generation. There are three mechanisms that contribute to the genetic variation arising from sexual reproduction: independent assortment of chrom ...
Evolution Notes File
... different number of structure of chromosomes c) _______________________________- First generation is viable and fertile, but successive generations are feeble or sterile 3. __________________________________- the transplantation of alleles between the gene pools of different species D. Biogeography ...
... different number of structure of chromosomes c) _______________________________- First generation is viable and fertile, but successive generations are feeble or sterile 3. __________________________________- the transplantation of alleles between the gene pools of different species D. Biogeography ...
Species Concepts
... Sympatric speciation in animals A group of animals may become isolated in the range of a parent population due to resource utilisation: Wasp which pollinate figs mate and lay their eggs in the figs A genetic change which causes certain wasps to select different fig species will segregate mating ind ...
... Sympatric speciation in animals A group of animals may become isolated in the range of a parent population due to resource utilisation: Wasp which pollinate figs mate and lay their eggs in the figs A genetic change which causes certain wasps to select different fig species will segregate mating ind ...
Chapter 22-25 Packet O` Fun
... A. The widespread use of DDT in the mid-1900s put pressure on insect populations to evolve resistance to DDT. As a result, large populations of insects today are resistant to DDT. Answer: This is a Lamarckian statement. DDT worked only against insects that had no DDTresistance genes. The genes for D ...
... A. The widespread use of DDT in the mid-1900s put pressure on insect populations to evolve resistance to DDT. As a result, large populations of insects today are resistant to DDT. Answer: This is a Lamarckian statement. DDT worked only against insects that had no DDTresistance genes. The genes for D ...
Chapter 21 Artificial Selection Artificial selection is the deliberate
... Artificial selection is the deliberate selection by humans of organisms with characteristics useful to mankind. This selection has resulted in the evolution of a wide variety of crops and domesticated animals through selective breeding and hybridisation. ...
... Artificial selection is the deliberate selection by humans of organisms with characteristics useful to mankind. This selection has resulted in the evolution of a wide variety of crops and domesticated animals through selective breeding and hybridisation. ...
Crossing Over and Independent Assortment Notes
... In each pair, the chromosome of maternal origin is orientated towards one pole, and the paternal chromosome is orientated toward the other pole. ...
... In each pair, the chromosome of maternal origin is orientated towards one pole, and the paternal chromosome is orientated toward the other pole. ...
5.2 Natural Selection - Cougar science rocks!
... Understanding: individuals that are better adapted tend to survive & produce more offspring while less well adapted tend to die or produce fewer offspring ...
... Understanding: individuals that are better adapted tend to survive & produce more offspring while less well adapted tend to die or produce fewer offspring ...
evolution COB questions
... 1. was not a lot of oxygen in the atmosphere of early earth because most of the oxygen we have now comes from photosynthesis and photosynthetic organisms did not appear until later / oxygen came from photosynthetic organisms (cyanobacteria) when they split water 2. Miller-Urey experiment: simulation ...
... 1. was not a lot of oxygen in the atmosphere of early earth because most of the oxygen we have now comes from photosynthesis and photosynthetic organisms did not appear until later / oxygen came from photosynthetic organisms (cyanobacteria) when they split water 2. Miller-Urey experiment: simulation ...
File - Ms. M`s Biology Class
... A lion and tiger can mate and produce the animal known as the Liger. A Liger is a sterile animal that cannot have offspring. Since the offspring of the lion and tiger does not produce fertile offspring, they are considered separate species. ...
... A lion and tiger can mate and produce the animal known as the Liger. A Liger is a sterile animal that cannot have offspring. Since the offspring of the lion and tiger does not produce fertile offspring, they are considered separate species. ...
Genetic structure of a desynchronized population of Thaumetopoea
... monitored with funnel trap captures. Results indicate that this population belongs to T. pityocampa although there was a shift in the life cycle. Genetic distance between this and the normal populations suggests that the summer population is differentiated from the winter one, and there is little ge ...
... monitored with funnel trap captures. Results indicate that this population belongs to T. pityocampa although there was a shift in the life cycle. Genetic distance between this and the normal populations suggests that the summer population is differentiated from the winter one, and there is little ge ...
Motivating examples
... reproductively isolated i.e., member of 2 populations cannot interbreed and produce fertile offspring ...
... reproductively isolated i.e., member of 2 populations cannot interbreed and produce fertile offspring ...
Descent with Modification and Population Evolution
... Gradual accumulation of small changes Individuals do not evolve Individuals interact with their environment Individuals adapt to their environments These changes are not heritable a. Only traits carried by gametes can be passed on ...
... Gradual accumulation of small changes Individuals do not evolve Individuals interact with their environment Individuals adapt to their environments These changes are not heritable a. Only traits carried by gametes can be passed on ...
Genetics - Goad Science
... Critical Question How does genetic information pass from one generation to the next? ...
... Critical Question How does genetic information pass from one generation to the next? ...
Speciation: Darwin revisited
... from the production of hybrids that are less fit or from efforts wasted on unsuccessful interspecific mating interactions. Reproductive isolation: absence (or severe restriction) of gene flow between populations whose members are in contact with one another. Secondary contact: the co-occurrence in o ...
... from the production of hybrids that are less fit or from efforts wasted on unsuccessful interspecific mating interactions. Reproductive isolation: absence (or severe restriction) of gene flow between populations whose members are in contact with one another. Secondary contact: the co-occurrence in o ...
Self Assessment: Natural Selection
... b. evolutionary processes have a final goal they are striving towards c. organisms can always find the resources they need in some way or another d. there are only so many natural resources and humans are under pressure to use them now 4. All individuals of a species that live in a defined area is c ...
... b. evolutionary processes have a final goal they are striving towards c. organisms can always find the resources they need in some way or another d. there are only so many natural resources and humans are under pressure to use them now 4. All individuals of a species that live in a defined area is c ...
HW 10 key
... African replacement or "out-of-Africa" -Homo sapiens evolved in Africa, and spread rapidly throughout the rest of the Old World, replacing other Homo populations without interbreeding with them. Hybridization and assimilation model-Homo sapiens evolved in Africa, spread to other regions, with a mino ...
... African replacement or "out-of-Africa" -Homo sapiens evolved in Africa, and spread rapidly throughout the rest of the Old World, replacing other Homo populations without interbreeding with them. Hybridization and assimilation model-Homo sapiens evolved in Africa, spread to other regions, with a mino ...
VI. Genetic Engineering or Recombinant DNA Technology
... • flowering plants that have more than two sets of chromosomes 2. Types a. Alloploidy • hybridization followed by a doubling of the chromosome number b. Autoploidy • chromosomes doubled when pairs of chromosomes fail to separate during mitosis or meiosis 3. Artificially creating polyploids a. Treati ...
... • flowering plants that have more than two sets of chromosomes 2. Types a. Alloploidy • hybridization followed by a doubling of the chromosome number b. Autoploidy • chromosomes doubled when pairs of chromosomes fail to separate during mitosis or meiosis 3. Artificially creating polyploids a. Treati ...
natural vs artificial selection ppt
... Brunner pouter (bottom right) were derived from the wild rock pigeon (top). ...
... Brunner pouter (bottom right) were derived from the wild rock pigeon (top). ...
Chapter 16 What is a species? How do new species form? Allopatric
... A species is a group of populations whose individuals interbreed with each other (or at least are capable of interbreeding), but not with members of other such groups. Interbreeding: Includes both mating and production of fertile offspring ...
... A species is a group of populations whose individuals interbreed with each other (or at least are capable of interbreeding), but not with members of other such groups. Interbreeding: Includes both mating and production of fertile offspring ...
3 slides
... become new species. Plant breeders take advantage of this using colchicine. colchicine causes plants to double their chromosome number. ...
... become new species. Plant breeders take advantage of this using colchicine. colchicine causes plants to double their chromosome number. ...
Hybrid (biology)
In biology a hybrid, also known as cross breed, is the result of mixing, through sexual reproduction, two animals or plants of different breeds, varieties, species or genera. Using genetic terminology, it may be defined as follows. Hybrid generally refers to any offspring resulting from the breeding of two genetically distinct individuals, which usually will result in a high degree of heterozygosity, though hybrid and heterozygous are not, strictly speaking, synonymous. a genetic hybrid carries two different alleles of the same gene a structural hybrid results from the fusion of gametes that have differing structure in at least one chromosome, as a result of structural abnormalities a numerical hybrid results from the fusion of gametes having different haploid numbers of chromosomes a permanent hybrid is a situation where only the heterozygous genotype occurs, because all homozygous combinations are lethal.From a taxonomic perspective, hybrid refers to: Offspring resulting from the interbreeding between two animal species or plant species. See also hybrid speciation. Hybrids between different subspecies within a species (such as between the Bengal tiger and Siberian tiger) are known as intra-specific hybrids. Hybrids between different species within the same genus (such as between lions and tigers) are sometimes known as interspecific hybrids or crosses. Hybrids between different genera (such as between sheep and goats) are known as intergeneric hybrids. Extremely rare interfamilial hybrids have been known to occur (such as the guineafowl hybrids). No interordinal (between different orders) animal hybrids are known. The third type of hybrid consists of crosses between populations, breeds or cultivars within a single species. This meaning is often used in plant and animal breeding, where hybrids are commonly produced and selected, because they have desirable characteristics not found or inconsistently present in the parent individuals or populations.↑ ↑ ↑ ↑