Lecture 13: Speciation Continued
... e.g. Apple pest – from Hawthorn • breed on hatching fruit type • different development times for 2 fruits • Assortative mating but hybridize in lab What maintains Diversity? • Envt’l segreg’n, diff’t dev’t times • maybe don’t need more selection for isolation ...
... e.g. Apple pest – from Hawthorn • breed on hatching fruit type • different development times for 2 fruits • Assortative mating but hybridize in lab What maintains Diversity? • Envt’l segreg’n, diff’t dev’t times • maybe don’t need more selection for isolation ...
SUSCEPTIBILITY TO TRANSMITTED
... by Opie ( 3 ) . It is only within the past decade that the disease has been successfully transmitted in mice. Transmissible strains have been described by Korteweg (4), Richter and MacDowell ( 5 ) , Mercier and Gosselin ( 6 ) , Krebs, Rask-Nielsen and Wagner ( 7 ) , Dobrovolskai'a-Zavadskai'a (8), L ...
... by Opie ( 3 ) . It is only within the past decade that the disease has been successfully transmitted in mice. Transmissible strains have been described by Korteweg (4), Richter and MacDowell ( 5 ) , Mercier and Gosselin ( 6 ) , Krebs, Rask-Nielsen and Wagner ( 7 ) , Dobrovolskai'a-Zavadskai'a (8), L ...
Imprinted gene expression in hybrids: perturbed
... hybrids (Zechner et al., 2004). These hybrid effects were observed in crosses between a mixed M. musculus domesticus strain and lab stocks of M. spretus. To be definitive about where the incompatibilities lie between M. musculus and M. spretus (or M. m. castaneus, see below), reciprocal crosses betw ...
... hybrids (Zechner et al., 2004). These hybrid effects were observed in crosses between a mixed M. musculus domesticus strain and lab stocks of M. spretus. To be definitive about where the incompatibilities lie between M. musculus and M. spretus (or M. m. castaneus, see below), reciprocal crosses betw ...
Brief Communications - Peromyscus Genetic Stock Center
... viable melanocytes were present. The ashy from the head, mid-back and rump of mudeer mouse model may be useful for further tant and control deer mice were examined study of melanocyte function. under a dissection microscope. Selected mid-dorsal hairs were suspended in glycThe ashy mutant deer mouse ...
... viable melanocytes were present. The ashy from the head, mid-back and rump of mudeer mouse model may be useful for further tant and control deer mice were examined study of melanocyte function. under a dissection microscope. Selected mid-dorsal hairs were suspended in glycThe ashy mutant deer mouse ...
Pre-implantation genetic diagnosis
... collection, IVF, embryo culture and transfer have been established for the treatment of infertility to the extent that the same techniques, albeit with minor modifications, are used world-wide. For example, the introduction of ovarian stimulation using FSH (follicle stimulating hormone) and LH (lute ...
... collection, IVF, embryo culture and transfer have been established for the treatment of infertility to the extent that the same techniques, albeit with minor modifications, are used world-wide. For example, the introduction of ovarian stimulation using FSH (follicle stimulating hormone) and LH (lute ...
Has the combination of genetic and fossil evidence solved the riddle
... of the first defense can be questioned on the basis of all of the problems I have mentioned. The second defense is not wholly convincing either because observed genetic distances between populations depend on a host of factors, among them the respective populations’ histories, including population si ...
... of the first defense can be questioned on the basis of all of the problems I have mentioned. The second defense is not wholly convincing either because observed genetic distances between populations depend on a host of factors, among them the respective populations’ histories, including population si ...
Chapter 1 A Perspective on Human Genetics
... •Some of these individuals have a mutation of SOD1 gene •The mutation causes the SOD1 protein to become toxic •Transgenic mice with mutant SOD1 gene develop muscle weakness similar to humans Chapter 18 Human Heredity by Michael Cummings ©2006 Brooks/Cole-Thomson Learning ...
... •Some of these individuals have a mutation of SOD1 gene •The mutation causes the SOD1 protein to become toxic •Transgenic mice with mutant SOD1 gene develop muscle weakness similar to humans Chapter 18 Human Heredity by Michael Cummings ©2006 Brooks/Cole-Thomson Learning ...
Chapter 1 - ANU Repository
... 1996b; Rockwood et al. 1991), in other instances the two appear uncorrelated (eg Dieters and Nikles 1998). Improvement of hybrids through pure species selection holds promise, but prediction of its efficacy awaits further estimates of critical genetic ...
... 1996b; Rockwood et al. 1991), in other instances the two appear uncorrelated (eg Dieters and Nikles 1998). Improvement of hybrids through pure species selection holds promise, but prediction of its efficacy awaits further estimates of critical genetic ...
Biology 4974/5974 Evolution
... Hybridization is widespread in plants but there are cases of hybridization in animals as well. Hybridization leads to important outcomes: 1.Generating novel genotypes. 2.Founding new evolutionary lineages. Fertile hybrids mediate gene flow from one species to another. •e.g., (Grant and Grant 2008). ...
... Hybridization is widespread in plants but there are cases of hybridization in animals as well. Hybridization leads to important outcomes: 1.Generating novel genotypes. 2.Founding new evolutionary lineages. Fertile hybrids mediate gene flow from one species to another. •e.g., (Grant and Grant 2008). ...
Lesson Overview
... The allele for this disease contains a long string of bases in which the codon CAG—coding for the amino acid glutamine—repeats over and over again, more than 40 times. Despite intensive study, the reason why these long strings of glutamine cause disease is still not clear. The symptoms of Huntington ...
... The allele for this disease contains a long string of bases in which the codon CAG—coding for the amino acid glutamine—repeats over and over again, more than 40 times. Despite intensive study, the reason why these long strings of glutamine cause disease is still not clear. The symptoms of Huntington ...
Complex patterns of hybridization between exotic and - UvA-DARE
... depends on their relatedness). Furthermore, we know that at least some of the hybrids are able to survive to sexual maturity and successfully backcross with the parental species or with other poplar species (Thompson et al., 2010). In fact, hybrid poplars are widely used because they display many co ...
... depends on their relatedness). Furthermore, we know that at least some of the hybrids are able to survive to sexual maturity and successfully backcross with the parental species or with other poplar species (Thompson et al., 2010). In fact, hybrid poplars are widely used because they display many co ...
key
... (d) (2 pts) Which is generally worse, a big non-centromere-containing inversion or a small one? Why? The loop structure is not harmful in itself, but whenever a crossover occurs within it, half of the gametes are inviable. A large inversion is therefore worse than a small one because the chance that ...
... (d) (2 pts) Which is generally worse, a big non-centromere-containing inversion or a small one? Why? The loop structure is not harmful in itself, but whenever a crossover occurs within it, half of the gametes are inviable. A large inversion is therefore worse than a small one because the chance that ...
Embryology
... The Ventricles of the Brain – Hollow areas within the brain • Connect to spinal canal and space around the brain ...
... The Ventricles of the Brain – Hollow areas within the brain • Connect to spinal canal and space around the brain ...
AGBA Herdbook Rules - American Galloway Breeders Association
... (ii) animals with one parent registered in Section I, and whose other parent is registered in the herd book of another association in accordance with rules consistent with those of the AGBA. (iii) animals registered in, or eligible for registration in, the herd book of another association in accorda ...
... (ii) animals with one parent registered in Section I, and whose other parent is registered in the herd book of another association in accordance with rules consistent with those of the AGBA. (iii) animals registered in, or eligible for registration in, the herd book of another association in accorda ...
ppt_E4ch02_Biotechnology_3e
... essential to evolution, by the progressive removal of unwanted genes or, by combining genes from different species, are we actually increasing variety and favouring evolution? • Where a gene probe detects a fatal abnormality, what criteria, if any, should be applied before deciding whether to carry ...
... essential to evolution, by the progressive removal of unwanted genes or, by combining genes from different species, are we actually increasing variety and favouring evolution? • Where a gene probe detects a fatal abnormality, what criteria, if any, should be applied before deciding whether to carry ...
Evolution of RH Genes in Hominoids: Characterization of a Gorilla
... and RhcE polypeptides were 29 and 25, respectively ( Table 2). Differences between gorilla RHCE-like polypeptide and two other gorilla Rh-like polypeptides were almost identical (24 and 25, respectively) ( Table 2). The topology of the phylogenetic tree obtained from the alignment shown in Figure 4 ...
... and RhcE polypeptides were 29 and 25, respectively ( Table 2). Differences between gorilla RHCE-like polypeptide and two other gorilla Rh-like polypeptides were almost identical (24 and 25, respectively) ( Table 2). The topology of the phylogenetic tree obtained from the alignment shown in Figure 4 ...
Race: A Discredited Concept in Biology - McGraw
... Race: A Discredited Concept in Biology • Race refers to geographically isolated subdivision of a species – Members of race or subspecies share distinctive physical characteristics based on common ancestry and inheritance of same genes Human populations have not been isolated enough from one another ...
... Race: A Discredited Concept in Biology • Race refers to geographically isolated subdivision of a species – Members of race or subspecies share distinctive physical characteristics based on common ancestry and inheritance of same genes Human populations have not been isolated enough from one another ...
Human dispersal across diverse environments of
... Contrary to the notion of the sudden revolutionary appearance of a new behavioural package with the emergence of modern humans, a major synthesis of behavioural indices for Middle Stone Age Africa revealed the gradual and non-contiguous emergence of modern traits (McBrearty and Brooks, 2000). Other ...
... Contrary to the notion of the sudden revolutionary appearance of a new behavioural package with the emergence of modern humans, a major synthesis of behavioural indices for Middle Stone Age Africa revealed the gradual and non-contiguous emergence of modern traits (McBrearty and Brooks, 2000). Other ...
Punnett Squares
... The different forms of the same trait or gene are called alleles. For example, the gene that controls height in pea plants has one allele for tall height and one for short height. ...
... The different forms of the same trait or gene are called alleles. For example, the gene that controls height in pea plants has one allele for tall height and one for short height. ...
INSULIN H - SEDICO Pharmaceutical Company
... Many plasmids with the insulin gene are inserted into many bacterial cells. The cells need nutrients in order to grow, divide, and live. While they live, the bacterial cell processes turn on the gene for human insulin and the insulin is produced in the cell. When the bacterial cells reproduce by ...
... Many plasmids with the insulin gene are inserted into many bacterial cells. The cells need nutrients in order to grow, divide, and live. While they live, the bacterial cell processes turn on the gene for human insulin and the insulin is produced in the cell. When the bacterial cells reproduce by ...
Chapter 1 A Perspective on Human Genetics
... • 90% of human genes are also present in the mouse • Excellent model of human disease • Transgenic models have several goals – Produce an animal with symptoms that mirror those in humans – Use the model to study the development and progress of the disease – Test treatments that hopefully will cure t ...
... • 90% of human genes are also present in the mouse • Excellent model of human disease • Transgenic models have several goals – Produce an animal with symptoms that mirror those in humans – Use the model to study the development and progress of the disease – Test treatments that hopefully will cure t ...
Genetic Inheritance in Humans | Principles of Biology from Nature
... Inheritance Patterns in Humans For more than 100 years, scientists have applied the basic principles of inheritance that Gregor Mendel described in pea plants to a large number of human traits, ranging from seemingly unimportant traits such as whether one's hair forms a widow's peak to genetic disor ...
... Inheritance Patterns in Humans For more than 100 years, scientists have applied the basic principles of inheritance that Gregor Mendel described in pea plants to a large number of human traits, ranging from seemingly unimportant traits such as whether one's hair forms a widow's peak to genetic disor ...
Chapter 11
... The X chromosome carries a variety of genes that are necessary for the development of both females and ...
... The X chromosome carries a variety of genes that are necessary for the development of both females and ...
7-1 Chrom-Pheno
... • When 2 gametes with an extra set of chromosomes fuse we it is called polyploidy • Its rare in animals and results in death • It is seen frequently in plants. Flowers and fruits tend to be bigger and plants healthier ...
... • When 2 gametes with an extra set of chromosomes fuse we it is called polyploidy • Its rare in animals and results in death • It is seen frequently in plants. Flowers and fruits tend to be bigger and plants healthier ...
Human–animal hybrid
The term human–animal hybrid or animal–human hybrid refers to an entity that incorporates elements from both humans and non-human animals. For thousands of years, these hybrids have been one of the most common themes in storytelling about animals throughout the world. The lack of a strong divide between humanity and animal nature in multiple traditional and ancient cultures has provided the underlying historical context for the popularity of tales where humans and animals have mingling relationships, such as in which one turns into the other or in which some mixed being goes through a journey. Interspecies friendships within the animal kingdom, as well as between humans and their pets, additionally provides an underlying root for the popularity of such beings.In various mythologies throughout history, many particularly famous hybrids have existed, including as a part of Egyptian and Indian spirituality. According to artist and scholar Pietro Gaietto, ""representations of human-animal hybrids always have their origins in religion"". As well, ""successive traditions they may change in meaning but they still remain within spiritual culture"" in his view. The entities have also been characters in fictional media more recently in history such as in H.G. Wells' work The Island of Doctor Moreau, adapted into the popular 1932 film Island of Lost Souls. In legendary terms, the hybrids have play varying roles from that of trickster and/or villain to serving as divine heroes in very different contexts, depending on the given culture.For example, Pan is a deity in Greek mythology that rules over and symbolizes the untamed wild, being worshiped by hunters, fishermen, and shepherds in particular. The mischievous yet cheerful character has the hindquarters, legs, and horns of a goat while otherwise being essentially human in appearance, with stories of his encounters with different gods, humans, and others being retold for centuries on after the days of early Greece by groups such as the Delphian Society. Specifically, the human-animal hybrid has appeared in acclaimed works of art by figures such as Francis Bacon. Additional famous mythological hybrids include the Egyptian god of death, named Anubis, and the fox-like Japanese beings that are called Kitsune.When looked at scientifically, outside of a fictional and/or mythical context, the real-life creation of human-animal hybrids has served as a subject of legal, moral, and technological debate in the context of recent advances in genetic engineering. Defined by the magazine H+ as ""genetic alterations that are blendings [sic] of animal and human forms"", such hybrids may be referred by other names occasionally such as ""para-humans"". They may additionally may be called ""humanized animals"". Technically speaking, they are also related to ""cybrids"" (cytoplasmic hybrids), with ""cybrid"" cells featuring foreign human nuclei inside of them being a topic of interest. Possibly, a real-world human-animal hybrid may be an entity formed from either a human egg fertilized by a nonhuman sperm or a nonhuman egg fertilized by a human sperm. While at first being a concept in the likes of legends and thought experiments, the first stable human-animal chimeras (not hybrids but related) to actually exist were first created by Shanghai Second Medical University scientists in 2003, the result of having fused human cells with rabbit eggs. As well, a U.S. patent has notably been granted for a mouse chimera with a human immune system.In terms of scientific ethics, restrictions on the creation of human–animal hybrids have proved a controversial matter in multiple countries. While the state of Arizona banned the practice altogether in 2010, a proposal on the subject that sparked some interest in the United States Senate from 2011 to 2012 ended up going nowhere. Although the two concepts are not strictly related, discussions of experimentation into blended human and animal creatures has paralleled the discussions around embryonic stem-cell research (the 'stem cell controversy'). The creation of genetically modified organisms for a multitude of purposes has taken place in the modern world for decades, examples being specifically designed foodstuffs made to have features such as higher crop yields through better disease resistance.Despite the legal and moral controversy over the possible real-life making of such beings, then President George W. Bush even speaking on the subject in his 2006 State of the Union, the concept of humanoid creatures with hybrid characteristics from animals, played in a dramatic and sensationalized fashion, has continued to be a popular element of fictional media in the digital age. Examples include Splice, a 2009 movie about experimental genetic research, and The Evil Within, a survival horror video game released in 2014 in which the protagonist fights grotesque hybrid creatures among other enemies.