Epigenetic Control of Apomixis
... meiosis and fertilization of egg cell. It has been reported to occur in >300 plant species belonging to >35 angiosperm families. Apomixis has been common in polyploid grasses, and poorly represented in the crop species. If apomixis could be incorporated in crop plants, its impact on agriculture coul ...
... meiosis and fertilization of egg cell. It has been reported to occur in >300 plant species belonging to >35 angiosperm families. Apomixis has been common in polyploid grasses, and poorly represented in the crop species. If apomixis could be incorporated in crop plants, its impact on agriculture coul ...
Keratins and skin disorders
... but it seems possible that the change is triggered by mechanical pressure in the basal layer of cells. The nature of the change in keratin synthesis depends on the body site, but in interfollicular epidermis the induction of synthesis of first K1 and subsequently K10 is seen as synthesis of K5 and K ...
... but it seems possible that the change is triggered by mechanical pressure in the basal layer of cells. The nature of the change in keratin synthesis depends on the body site, but in interfollicular epidermis the induction of synthesis of first K1 and subsequently K10 is seen as synthesis of K5 and K ...
Bridging differences in concepts of selection between farmers
... analogy between artificial selection by breeders of his clay and "natural selection." For Darwin, selection included what biologistscame to see as being composed of (1) phenotypic selection of individuals based on phenotypic differences, and, when these are based on heritable genotypic differences, ...
... analogy between artificial selection by breeders of his clay and "natural selection." For Darwin, selection included what biologistscame to see as being composed of (1) phenotypic selection of individuals based on phenotypic differences, and, when these are based on heritable genotypic differences, ...
Fishes - OpenStax CNX
... in early vertebrate evolution was the development of the jaw, which is a hinged structure attached to the cranium that allows an animal to grasp and tear its food. The evolution of jaws allowed early gnathostomes to exploit food resources that were unavailable to jawless shes. Early gnathostomes al ...
... in early vertebrate evolution was the development of the jaw, which is a hinged structure attached to the cranium that allows an animal to grasp and tear its food. The evolution of jaws allowed early gnathostomes to exploit food resources that were unavailable to jawless shes. Early gnathostomes al ...
Plant speciation through chromosome instability and ploidy change
... [9,14,15]. Indeed, several phylogenetic studies and comparative genome analyses have confirmed that most flowering plants have undergone one or more ancient WGDs early in their evolution, and that several species seem to have experienced one or more additional rounds of more recent, independent polypl ...
... [9,14,15]. Indeed, several phylogenetic studies and comparative genome analyses have confirmed that most flowering plants have undergone one or more ancient WGDs early in their evolution, and that several species seem to have experienced one or more additional rounds of more recent, independent polypl ...
An Illustrated Introduction to the Basic Biological
... inert components cannot constitute an evolutionary entity with sufficient functional activity to support the extraordinary complexity and high fitness of life. As the stability/robustness of a lineage of biotic entities, fitness must be realized through various concrete functional activities. As the ...
... inert components cannot constitute an evolutionary entity with sufficient functional activity to support the extraordinary complexity and high fitness of life. As the stability/robustness of a lineage of biotic entities, fitness must be realized through various concrete functional activities. As the ...
Slide 1
... Low frequency markers result in a lag period, and have lots of potential, but raise concern about loss of genetic diversity and impact on other traits ...
... Low frequency markers result in a lag period, and have lots of potential, but raise concern about loss of genetic diversity and impact on other traits ...
TIB_34 - Stored Product Insect and Engineering Research
... The question of whether parents should be selected and tested in the same environment in which their progeny are to perform is a problem which has received considerable attention. The fact that the phenotype of an organism is the product of both its genotype and its environment is widely accepted by ...
... The question of whether parents should be selected and tested in the same environment in which their progeny are to perform is a problem which has received considerable attention. The fact that the phenotype of an organism is the product of both its genotype and its environment is widely accepted by ...
Beef - Breeding, Genetic, and Reproductive Management
... Provides relative ranking among contemporaries ...
... Provides relative ranking among contemporaries ...
The Influence of Learning on Evolution
... that occurs on the genotype level from one generation to the next. Learning is a fast process that occurs on the phenotype level within the lifetime of an individual. Both processes interact in many ways. The most direct interaction, the genetic fixation of learned phenotypic characteristics is not ...
... that occurs on the genotype level from one generation to the next. Learning is a fast process that occurs on the phenotype level within the lifetime of an individual. Both processes interact in many ways. The most direct interaction, the genetic fixation of learned phenotypic characteristics is not ...
my response - City, University of London
... and group interests may exist, but to the Panglossian notion propagated by WynneEdwards and his followers, such as Hayek, that group selection can exist in the absence of such mechanisms. The critical link between individual and group interest is what I will call connation. It is worth quoting Dawki ...
... and group interests may exist, but to the Panglossian notion propagated by WynneEdwards and his followers, such as Hayek, that group selection can exist in the absence of such mechanisms. The critical link between individual and group interest is what I will call connation. It is worth quoting Dawki ...
Darwin as a plant scientist - Australian National Botanic Gardens
... mating systems, carnivory, sensing and tropisms. He used the rich diversity of convergent structures within orchids, carnivorous plants and climbing plants to debunk the prevailing notion of each species being created perfectly through intelligent design. He was surprised to discover that many orchi ...
... mating systems, carnivory, sensing and tropisms. He used the rich diversity of convergent structures within orchids, carnivorous plants and climbing plants to debunk the prevailing notion of each species being created perfectly through intelligent design. He was surprised to discover that many orchi ...
Most Repeated Questions of Zoology
... 2003: Give a brief over view of Parasitic Adaptations in Platyhhelminthes. 2002: Describe the life history of LIVER FLUKE by giving suitable diagrams. 2001: Discuss the general adaptation of parasitic mode of life with special reference to phylum PLATY ...
... 2003: Give a brief over view of Parasitic Adaptations in Platyhhelminthes. 2002: Describe the life history of LIVER FLUKE by giving suitable diagrams. 2001: Discuss the general adaptation of parasitic mode of life with special reference to phylum PLATY ...
Multiplex PCR for specific identification and determination of mating
... isolates from individual diseased vines on autoclaved cane sections (Mostert et al., 2003). Formation of perithecia for T. minima on dead vascular tissues and surface of decayed pruning wounds under field conditions have been reported by Rooney-Latham et al. (2005b). The presence of perithecia in vi ...
... isolates from individual diseased vines on autoclaved cane sections (Mostert et al., 2003). Formation of perithecia for T. minima on dead vascular tissues and surface of decayed pruning wounds under field conditions have been reported by Rooney-Latham et al. (2005b). The presence of perithecia in vi ...
Darwin - Fleming College
... but time spent around the Galapagos had most significant impact Ten islands relatively isolated, even from each other Acted as a series of distinct observatories through which Darwin could draw comparisons Noted islands shared many species of flora and fauna in common, but each land mass often displ ...
... but time spent around the Galapagos had most significant impact Ten islands relatively isolated, even from each other Acted as a series of distinct observatories through which Darwin could draw comparisons Noted islands shared many species of flora and fauna in common, but each land mass often displ ...
Identification of genes that are associated with DNA repeats in
... by sequences with the same size variation. Several hundred hits were obtained, but most of these matching sequences consisted of large, mostly imperfect, direct repeats, without interspersing non-repetitive DNA. Therefore, the characteristic CRISPR motifs were selected manually from the sequences ob ...
... by sequences with the same size variation. Several hundred hits were obtained, but most of these matching sequences consisted of large, mostly imperfect, direct repeats, without interspersing non-repetitive DNA. Therefore, the characteristic CRISPR motifs were selected manually from the sequences ob ...
This Curriculum Map Unit has no Topics to display
... This unit will introduce the world of life science - the world of plants, animals, bacteria, mushrooms, health, disease, and anything related to living organisms. Students will see that science is about asking questions and using scientific methods to find answers and build knowledge. Science is als ...
... This unit will introduce the world of life science - the world of plants, animals, bacteria, mushrooms, health, disease, and anything related to living organisms. Students will see that science is about asking questions and using scientific methods to find answers and build knowledge. Science is als ...
Two novel heterozygous mutations of EVC2 cause a mild phenotype
... these low scores may mean the two types do not exist in this instance. The last alternative splicing could lead to intron retention, producing a truncated protein containing 241 amino acids. Given these possibilities, exon 6 skipping appears to be the most likely form of alternative splicing. A cons ...
... these low scores may mean the two types do not exist in this instance. The last alternative splicing could lead to intron retention, producing a truncated protein containing 241 amino acids. Given these possibilities, exon 6 skipping appears to be the most likely form of alternative splicing. A cons ...
Evolution: artificial selection and domestication
... home of free learning from The Open University – www.open.edu/openlearn/natureenvironment/natural-history/evolution-artificial-selection-and-domestication/contentsection-0 There you’ll also be able to track your progress via your activity record, which you can use to demonstrate your learning. ...
... home of free learning from The Open University – www.open.edu/openlearn/natureenvironment/natural-history/evolution-artificial-selection-and-domestication/contentsection-0 There you’ll also be able to track your progress via your activity record, which you can use to demonstrate your learning. ...
Fruit Flies Breeding Experiment
... 66% Wild Types & 33% Vestigial (3:1) [F2 Generation] From this result, we can make the same conclusion as the conclusion we made in mating 2. Since this also clearly shows the fact that wild type is clearly a dominant trait compared to the vestigial and also the fact that the F1 generation of flies ...
... 66% Wild Types & 33% Vestigial (3:1) [F2 Generation] From this result, we can make the same conclusion as the conclusion we made in mating 2. Since this also clearly shows the fact that wild type is clearly a dominant trait compared to the vestigial and also the fact that the F1 generation of flies ...
Course Outline - Gavilan College
... and genetic engineering. 2. Describe some of the uses of genetic engineering. 3. Explain the function of restriction enzymes in biotechnology. 4. Describe some of the social, ethical, and moral dilemmas presented by some areas of biotechnology research. Assignments: read text, answer lecture quizzes ...
... and genetic engineering. 2. Describe some of the uses of genetic engineering. 3. Explain the function of restriction enzymes in biotechnology. 4. Describe some of the social, ethical, and moral dilemmas presented by some areas of biotechnology research. Assignments: read text, answer lecture quizzes ...
Genetic Equilibrium: Human Diversity
... Once again, you will be working in pairs and testing the Hardy-Weinberg Principle by simulating a population using beans, beads, or similar materials. However, with this new experiment, you will be introducing one conditional change—using a small population rather than a large one—in the hopes of si ...
... Once again, you will be working in pairs and testing the Hardy-Weinberg Principle by simulating a population using beans, beads, or similar materials. However, with this new experiment, you will be introducing one conditional change—using a small population rather than a large one—in the hopes of si ...
Why Mendelian segregation?
... change in male and female meiosis result in the preferential transmission of one allele through one of the sexes and the opposite allele through the other sex. This might have some adverse consequences due to the accumulation of other genes whose expression is beneficial for males (or females) but d ...
... change in male and female meiosis result in the preferential transmission of one allele through one of the sexes and the opposite allele through the other sex. This might have some adverse consequences due to the accumulation of other genes whose expression is beneficial for males (or females) but d ...
SBI3U0 - Pages
... b. a theory that best describes how species living today are descendants of species of past generations c. provides an explanation of how the great biological diversity present today occurred and is increasing d. an explanation of how mutations change the composition of a population e. all of the ab ...
... b. a theory that best describes how species living today are descendants of species of past generations c. provides an explanation of how the great biological diversity present today occurred and is increasing d. an explanation of how mutations change the composition of a population e. all of the ab ...
Koinophilia
Koinophilia is an evolutionary hypothesis concerning sexual selection which proposes that animals seeking mate preferentially choose individuals with a minimum of unusual features. Koinophilia intends to explain the clustering of organisms into species and other issues described by Darwin's Dilemma. The term derives from the Greek, koinos, ""the usual"", and philos, ""fondness"".Natural selection causes beneficial inherited features to become more common and eventually replace their disadvantageous counterparts. A sexually-reproducing animal would be expected to avoid individuals with unusual features, and to prefer to mate with individuals displaying a predominance of common or average features. This means that mates displaying mutant features are also avoided. This is advantageous because most mutations that manifest themselves as changes in appearance, functionality or behavior, are disadvantageous. Because it is impossible to judge whether a new mutation is beneficial or not, koinophilic animals avoid them all, at the cost of avoiding the occasional beneficial mutation. Thus, koinophilia, although not infallible in its ability to distinguish fit from unfit mates, is a good strategy when choosing a mate. A koinophilic choice ensures that offspring are likely to inherit features that have been successful in the past.Koinophilia differs from assortative mating, where ""like prefers like"". If like preferred like, leucistic animals (such as white peacocks) would be sexually attracted to one another, and a leucistic subspecies would come into being. Koinophilia predicts that this is unlikely because leucistic animals are attracted to the average in the same way as other animals. Since non-leucistic animals are not attracted by leucism, few leucistic individuals find mates, and leucistic lineages will rarely form.Koinophilia provides simple explanations for the rarity of speciation (in particular Darwin's Dilemma), evolutionary stasis, punctuated equilibria, and the evolution of cooperation. Koinophilia might also contribute to the maintenance of sexual reproduction, preventing its reversion to the much simpler and inherently more advantageous asexual form of reproduction.The koinophilia hypothesis is supported by research into the physical attractiveness of human faces by Judith Langlois and her co-workers. They found that the average of two human faces was more attractive than either of the faces from which that average was derived. The more faces (of the same gender and age) that were used in the averaging process the more attractive and appealing the average face became. This work into averageness supports koinophilia as an explanation of what constitutes a beautiful face, and how the individuality of a face is recognized.