TWO SEXES. Why? The Evolutionary Theory of Sex
... Printed in the United States of America. No part of this publication may be reproduced or transmittedin any form or by any means without the written permission of the publisher. ...
... Printed in the United States of America. No part of this publication may be reproduced or transmittedin any form or by any means without the written permission of the publisher. ...
Specific oligonucleotide primers for detection of endoglucanase
... et al. 1999). Classical identification methods based on biochemical tests or fatty acid methyl ester profiling were laborious and hence not applicable for the purpose of a rapid screening. These taxa can be differentiated from one another by fatty acid composition analysis, restriction digest analys ...
... et al. 1999). Classical identification methods based on biochemical tests or fatty acid methyl ester profiling were laborious and hence not applicable for the purpose of a rapid screening. These taxa can be differentiated from one another by fatty acid composition analysis, restriction digest analys ...
Variation and its response to selection
... •CV allows comparison of variability of traits of very different sizes •Organisms showing determinate growth show restricted CV: •Birds have a CV of 2-4% for most traits •Microtus voles have a CV of about 10 % for body weight •CVs may be larger for organisms with indeterminate growth (e.g. fish) ...
... •CV allows comparison of variability of traits of very different sizes •Organisms showing determinate growth show restricted CV: •Birds have a CV of 2-4% for most traits •Microtus voles have a CV of about 10 % for body weight •CVs may be larger for organisms with indeterminate growth (e.g. fish) ...
The Nature of Life – Chapter 1
... 13.3.2: Explain how you can tell if a transformation experiment has been successful. Objectives: 13.4.1: Describe the usefulness of some transgenic organisms to humans. 13.4.2: Summarize the main steps in cloning. Assessments: Unit worksheets, chapter test The Human Genome – Chapter 14 (Video: Genet ...
... 13.3.2: Explain how you can tell if a transformation experiment has been successful. Objectives: 13.4.1: Describe the usefulness of some transgenic organisms to humans. 13.4.2: Summarize the main steps in cloning. Assessments: Unit worksheets, chapter test The Human Genome – Chapter 14 (Video: Genet ...
Wolbachia`s Role In Classical Speciation Theory
... has been strong motivation for investigating Wolbachia’s role in speciation processes of their hosts. In particular, Wolbachia can induce a mating incompatibility in their hosts that avoids or reduces offspring production between infected males and uninfected females. This phenomenon was already obs ...
... has been strong motivation for investigating Wolbachia’s role in speciation processes of their hosts. In particular, Wolbachia can induce a mating incompatibility in their hosts that avoids or reduces offspring production between infected males and uninfected females. This phenomenon was already obs ...
Genetics Problems II
... Expected Genotypes of Offspring:_________________________ Expected Phenotypes of Offspring: _______________________ a. If you mated these same cats four more times and obtained a total of forty offspring would you expect the results to be a close approximation of the expected ration? Explain. ...
... Expected Genotypes of Offspring:_________________________ Expected Phenotypes of Offspring: _______________________ a. If you mated these same cats four more times and obtained a total of forty offspring would you expect the results to be a close approximation of the expected ration? Explain. ...
Name
... Expected Genotypes of Offspring:_________________________ Expected Phenotypes of Offspring: _______________________ a. If you mated these same cats four more times and obtained a total of forty offspring would you expect the results to be a close approximation of the expected ration? Explain. ...
... Expected Genotypes of Offspring:_________________________ Expected Phenotypes of Offspring: _______________________ a. If you mated these same cats four more times and obtained a total of forty offspring would you expect the results to be a close approximation of the expected ration? Explain. ...
Discovery and classification of ecological diversity in the
... Second, because the adaptive mutant cannot outcompete cells from other ecological populations, each periodic selection event has very little effect on the divergence between populations (14,15,18). Because it purges the diversity within but not between populations, periodic selection increases the d ...
... Second, because the adaptive mutant cannot outcompete cells from other ecological populations, each periodic selection event has very little effect on the divergence between populations (14,15,18). Because it purges the diversity within but not between populations, periodic selection increases the d ...
the Role of DNA Sequence Data - International Journal of
... Second, because the adaptive mutant cannot outcompete cells from other ecological populations, each periodic selection event has very little effect on the divergence between populations (14,15,18). Because it purges the diversity within but not between populations, periodic selection increases the d ...
... Second, because the adaptive mutant cannot outcompete cells from other ecological populations, each periodic selection event has very little effect on the divergence between populations (14,15,18). Because it purges the diversity within but not between populations, periodic selection increases the d ...
Role of Aminoalcoholphosphotransferases 1 and 2
... Two of the homozygous AAPT RNAi lines (R56 and R125) failed to germinate in soil. When germinated on plates, all three strong AAPT RNAi lines showed reduced primary root growth compared with wild-type plants (Supplemental Figure 6A). On the other hand, compared with the wild type, AAPT RNAi plants s ...
... Two of the homozygous AAPT RNAi lines (R56 and R125) failed to germinate in soil. When germinated on plates, all three strong AAPT RNAi lines showed reduced primary root growth compared with wild-type plants (Supplemental Figure 6A). On the other hand, compared with the wild type, AAPT RNAi plants s ...
Role of Aminoalcoholphosphotransferases 1 and 2 in Phospholipid
... Two of the homozygous AAPT RNAi lines (R56 and R125) failed to germinate in soil. When germinated on plates, all three strong AAPT RNAi lines showed reduced primary root growth compared with wild-type plants (Supplemental Figure 6A). On the other hand, compared with the wild type, AAPT RNAi plants s ...
... Two of the homozygous AAPT RNAi lines (R56 and R125) failed to germinate in soil. When germinated on plates, all three strong AAPT RNAi lines showed reduced primary root growth compared with wild-type plants (Supplemental Figure 6A). On the other hand, compared with the wild type, AAPT RNAi plants s ...
Imprinted gene expression in hybrids: perturbed
... novel insights into the underlying mechanisms, the full extent of imprinted gene perturbation still remains to be determined in the different hybrid systems. Here we review imprinted gene expression in intra- and interspecies hybrids and examine the evolutionary scenarios under which imprinting coul ...
... novel insights into the underlying mechanisms, the full extent of imprinted gene perturbation still remains to be determined in the different hybrid systems. Here we review imprinted gene expression in intra- and interspecies hybrids and examine the evolutionary scenarios under which imprinting coul ...
Ontology Driven Modeling for the Knowledge of Genetic
... knowledge is needed. However, because of the complexity of determining a genetic susceptibility factor, there is no formalization for the knowledge of genetic susceptibility to disease, which makes the interoperability between systems impossible. Thus, the ontology modeling language OWL was used for ...
... knowledge is needed. However, because of the complexity of determining a genetic susceptibility factor, there is no formalization for the knowledge of genetic susceptibility to disease, which makes the interoperability between systems impossible. Thus, the ontology modeling language OWL was used for ...
Parallel Genetic and Phenotypic Evolution of DNA Superhelicity in
... Losos et al. 1998; Huey et al. 2000). Parallel changes sometimes extend even to the genome, as has been described for some viral and bacterial pathogens (Crandall et al. 1999; Reid et al. 2000). The parallel evolution of DNA superhelicity in the long-term experiment with E. coli provides therefore h ...
... Losos et al. 1998; Huey et al. 2000). Parallel changes sometimes extend even to the genome, as has been described for some viral and bacterial pathogens (Crandall et al. 1999; Reid et al. 2000). The parallel evolution of DNA superhelicity in the long-term experiment with E. coli provides therefore h ...
Prospects for Developing Perennial Grain Crops
... quickly or easily. There are two possible approaches to breeding perennial grains, each of which involves serious challenges (Cox TS et al. 2002). When both approaches are possible in a given group of species or genera, it may be advisable to pursue them in parallel because of their complementary st ...
... quickly or easily. There are two possible approaches to breeding perennial grains, each of which involves serious challenges (Cox TS et al. 2002). When both approaches are possible in a given group of species or genera, it may be advisable to pursue them in parallel because of their complementary st ...
Richard Goldschmidt: hopeful monsters and other `heresies`
... theory of sex”11. Calvin Bridges would later introduce a different theory under the same name to explain intersexes in Drosophila. In an attempt to account for sex determination in all animals, Goldschmidt charted the development of several distinguishing sexual characteristics in species other than ...
... theory of sex”11. Calvin Bridges would later introduce a different theory under the same name to explain intersexes in Drosophila. In an attempt to account for sex determination in all animals, Goldschmidt charted the development of several distinguishing sexual characteristics in species other than ...
Comprehensive analysis of thiopurine S
... represent exons out of the ORF. Exons but not intron sizes are proportional to their relative lengths. References are listed in brackets. a R. Weinshilboum, personal communication; b present study. ...
... represent exons out of the ORF. Exons but not intron sizes are proportional to their relative lengths. References are listed in brackets. a R. Weinshilboum, personal communication; b present study. ...
PDF
... The use of contrived dominant lethality was suggested by Smith and von Borstel (38) to circumvent two undesirable direct effects of mutagenic agents on insects that are released for population suppression. In some species, such as a boll weevil, mutagenic agents used to induce sterility inflict cons ...
... The use of contrived dominant lethality was suggested by Smith and von Borstel (38) to circumvent two undesirable direct effects of mutagenic agents on insects that are released for population suppression. In some species, such as a boll weevil, mutagenic agents used to induce sterility inflict cons ...
Reprint
... such as bright coloration, greatly exaggerated morphological characters, or complex display behaviors and song (Andersson 1994). Although some such features might confer a survival advantage and therefore might have evolved through natural selection, it seems unlikely that this is universally true. ...
... such as bright coloration, greatly exaggerated morphological characters, or complex display behaviors and song (Andersson 1994). Although some such features might confer a survival advantage and therefore might have evolved through natural selection, it seems unlikely that this is universally true. ...
Quiz 7B Practice
... Punnett Squares The number of boxes in a Punnett square does not stand for the number of offspring an organism will produce. The boxes represent the genetic possibilities of the offspring. ...
... Punnett Squares The number of boxes in a Punnett square does not stand for the number of offspring an organism will produce. The boxes represent the genetic possibilities of the offspring. ...
Quiz 7C Dominant & Recessive Using Punnett Squares
... Punnett Squares The number of boxes in a Punnett square does not stand for the number of offspring an organism will produce. The boxes represent the genetic possibilities of the offspring. ...
... Punnett Squares The number of boxes in a Punnett square does not stand for the number of offspring an organism will produce. The boxes represent the genetic possibilities of the offspring. ...
Kin Recognition Mechanisms: Phenotypic Matching or Recognition
... to associatewithsiblingsin associationtests,one could 1982)and stillpreferred was themostpervasive stillarguethattheindividual'sown odoror phenotype alleles could be invokedbut recognition one. Therefore, phenotypic matching thoseindividualsthey cannotbe ruledout. If, however,the tadpolepreferred al ...
... to associatewithsiblingsin associationtests,one could 1982)and stillpreferred was themostpervasive stillarguethattheindividual'sown odoror phenotype alleles could be invokedbut recognition one. Therefore, phenotypic matching thoseindividualsthey cannotbe ruledout. If, however,the tadpolepreferred al ...
what is alignment? - UWI St. Augustine
... •In global alignment, an attempt is made to align the entire sequences, as many characters as possible. • In local alignment, stretches of sequence with the highest density of matches are given the highest priority, •generating one or more islands of matches in the aligned sequences. Applications: l ...
... •In global alignment, an attempt is made to align the entire sequences, as many characters as possible. • In local alignment, stretches of sequence with the highest density of matches are given the highest priority, •generating one or more islands of matches in the aligned sequences. Applications: l ...
References
... We first investigated whether there is evidence for indirect genetic effects in offspring ...
... We first investigated whether there is evidence for indirect genetic effects in offspring ...
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.