Maintenance of xylem network transport capacity: a review of
... between these tissues in plants suggests that the refilling mechanisms may be different depending on the location of the tissue (e.g., refilling in roots may be more strongly influenced by root pressure, while tissue higher in the canopy would rely more on “novel” refilling to restore hydraulic cond ...
... between these tissues in plants suggests that the refilling mechanisms may be different depending on the location of the tissue (e.g., refilling in roots may be more strongly influenced by root pressure, while tissue higher in the canopy would rely more on “novel” refilling to restore hydraulic cond ...
Chapter 5 mc
... ____ 10. What carries the genes that determine sex? a. homologous chromosomes c. sex chromosomes b. pedigree d. phenotype ____ 11. Instructions for an inherited trait are called a. alleles. c. albinism. b. phenotype. d. genes. ____ 12. The different forms of a gene that decide a characteristic are ...
... ____ 10. What carries the genes that determine sex? a. homologous chromosomes c. sex chromosomes b. pedigree d. phenotype ____ 11. Instructions for an inherited trait are called a. alleles. c. albinism. b. phenotype. d. genes. ____ 12. The different forms of a gene that decide a characteristic are ...
A Retrospective Study of Balanced Chromosomal Translocations in
... tive risk of conceiving chromosomally abnormal embryos as a result of chromosomal imbalances that take place during meiosis, leading to recurrent miscarriages or to birth of affected offspring. The translocated chromosomes of balanced translocation carriers, pair with their matching homologous at a ...
... tive risk of conceiving chromosomally abnormal embryos as a result of chromosomal imbalances that take place during meiosis, leading to recurrent miscarriages or to birth of affected offspring. The translocated chromosomes of balanced translocation carriers, pair with their matching homologous at a ...
Invasive Plants Taking Root in Alaska 9
... Who cares about native plants? Native plants serve as the base of the food web and without them there may be limited food for animals or fish. In addition to being an important food source and habitat for wildlife, native plants can also serve other important functions such as stabilizing soil and a ...
... Who cares about native plants? Native plants serve as the base of the food web and without them there may be limited food for animals or fish. In addition to being an important food source and habitat for wildlife, native plants can also serve other important functions such as stabilizing soil and a ...
Test Bank
... 10. Western white butterflies that hatch in springtime have more pigment in their wings than those that hatch in summer. The darker wings help the butterflies stay warmer by absorbing more ____________________ than the lighter-colored wings. 11. The characteristics of an organism are determined by t ...
... 10. Western white butterflies that hatch in springtime have more pigment in their wings than those that hatch in summer. The darker wings help the butterflies stay warmer by absorbing more ____________________ than the lighter-colored wings. 11. The characteristics of an organism are determined by t ...
The qSD12 Locus Controls Offspring Tissue-Imposed
... dormancy QTL region(s) and grown under the same conditions, and accordingly these seeds are identical for their maternal tissue genotype and macro (between-plants) environmental variation in germination; (2) the dormancy locus (D/d) completely or tightly links to a codominant marker (M/m), with the ...
... dormancy QTL region(s) and grown under the same conditions, and accordingly these seeds are identical for their maternal tissue genotype and macro (between-plants) environmental variation in germination; (2) the dormancy locus (D/d) completely or tightly links to a codominant marker (M/m), with the ...
Chromosome Variation
... White Lightning. Like his brother, White Lightning possessed mule chromosomes and appeared to have inherited only horse chromosomes from his mother. Additional reports of fertile female mules support the idea that their offspring inherit only horse chromosomes from their mother. When the father of a ...
... White Lightning. Like his brother, White Lightning possessed mule chromosomes and appeared to have inherited only horse chromosomes from his mother. Additional reports of fertile female mules support the idea that their offspring inherit only horse chromosomes from their mother. When the father of a ...
The first page should show the paper title, names and addresses of
... Zlotina et al. 2010). When chicken BAC probes were applied to quail LBCs, despite the differences in centromere positions, the gene order identified by FISH on CCO4 was the same as the gene order on GGA4 (Galkina et al. 2006). Thus, the high-resolution mapping did not confirm the pericentric inversi ...
... Zlotina et al. 2010). When chicken BAC probes were applied to quail LBCs, despite the differences in centromere positions, the gene order identified by FISH on CCO4 was the same as the gene order on GGA4 (Galkina et al. 2006). Thus, the high-resolution mapping did not confirm the pericentric inversi ...
goodfield tennessee deep water lot
... “hybrid” Advent, in which the first resistance to downy mildew (Pl1) was identified by Vranceanu and Stoenescu (1966) at ICCPT, Rumania. In progenies from natural crosses of Canadian breeding material with wild Helianthus annuus, in winter generations grown in Texas, the team at Morden, Manitoba obt ...
... “hybrid” Advent, in which the first resistance to downy mildew (Pl1) was identified by Vranceanu and Stoenescu (1966) at ICCPT, Rumania. In progenies from natural crosses of Canadian breeding material with wild Helianthus annuus, in winter generations grown in Texas, the team at Morden, Manitoba obt ...
consejo superior de investigaciones científicas
... endémica de Costa Rica: un complejo taxonómico-nomenclatural, y una nueva especie / The case of Lonchocarpus costaricensis (Leguminosae, Papilionoideae), an endemic species of Costa Rica: a taxonomic-nomenclatural complex, and a new species ........................................................... ...
... endémica de Costa Rica: un complejo taxonómico-nomenclatural, y una nueva especie / The case of Lonchocarpus costaricensis (Leguminosae, Papilionoideae), an endemic species of Costa Rica: a taxonomic-nomenclatural complex, and a new species ........................................................... ...
Mendelian Genetics
... In 1853 and 1854, Mendal published two papers on crop damage by insects. However, he is best known for his later studies of the pea plant Pisum sativum. Mendel was inspired by both his professors at university and his colleagues at the monastery to study variation in plants. He had carried out artif ...
... In 1853 and 1854, Mendal published two papers on crop damage by insects. However, he is best known for his later studies of the pea plant Pisum sativum. Mendel was inspired by both his professors at university and his colleagues at the monastery to study variation in plants. He had carried out artif ...
Taxonomic evaluation of the Streptomyces griseus clade using
... Details of the loci studied, three- and four-gene concatenated NJ trees and correlation of MLSA distances and DDH results for individual genes are available as supplementary material with the online version of this paper. ...
... Details of the loci studied, three- and four-gene concatenated NJ trees and correlation of MLSA distances and DDH results for individual genes are available as supplementary material with the online version of this paper. ...
Consulta: creatorFacets:"Leitao, Alexandra" Registros recuperados
... Three species of man.-rove oysters, Crassostrea rhizophorae, C. brasiliana, and C. gasar, have been described along the Atlantic shores of South America and Africa. Because the distribution of these molluscs is of great biological and commercial interest, their taxonomy and distribution deserve furt ...
... Three species of man.-rove oysters, Crassostrea rhizophorae, C. brasiliana, and C. gasar, have been described along the Atlantic shores of South America and Africa. Because the distribution of these molluscs is of great biological and commercial interest, their taxonomy and distribution deserve furt ...
2012-14
... Chemical prospecting of potential plant species continued. Ethnobotanical surveys and documentation of Traditional Knowledge on Biodiversity received top priority. Preclinical drug discovery and elucidation of their molecular mechanism added to the Institute's strength in product development. Phylog ...
... Chemical prospecting of potential plant species continued. Ethnobotanical surveys and documentation of Traditional Knowledge on Biodiversity received top priority. Preclinical drug discovery and elucidation of their molecular mechanism added to the Institute's strength in product development. Phylog ...
The Genetic Principles of Crossbreeding
... Heterosis may be a positive or negative value. Also, heterosis may be positive even when one of the parent breeds outperforms the crossbred average. Heterosis values (Table 1) have been derived largely from experiments involving British and/or European breeds. Note that British crosses with Brahman ...
... Heterosis may be a positive or negative value. Also, heterosis may be positive even when one of the parent breeds outperforms the crossbred average. Heterosis values (Table 1) have been derived largely from experiments involving British and/or European breeds. Note that British crosses with Brahman ...
Unit 1 Review Answer Key 1. Define the following terms: a
... same locus. It is usually represented with an uppercase letter. d. The recessive allele is the expression (phenotype) hidden by another allele at the same locus; the allele phenotype is only seen in a homozygous genotype. It is usually represented with a lowercase letter. e. Homozygous means that id ...
... same locus. It is usually represented with an uppercase letter. d. The recessive allele is the expression (phenotype) hidden by another allele at the same locus; the allele phenotype is only seen in a homozygous genotype. It is usually represented with a lowercase letter. e. Homozygous means that id ...
Punnett Squares
... to use for breeding purposes if possible. The dog can hear, so the owner knows his genotype is either DD or Dd. If the dog’s genotype is Dd, the owner does not wish to use him for breeding so that the deafness gene will not be passed on. This can be tested by breeding the dog to a deaf female (dd). ...
... to use for breeding purposes if possible. The dog can hear, so the owner knows his genotype is either DD or Dd. If the dog’s genotype is Dd, the owner does not wish to use him for breeding so that the deafness gene will not be passed on. This can be tested by breeding the dog to a deaf female (dd). ...
VCR 221 - Potato - UC Davis Plant Sciences
... Quantitative resistance to Phytophthora infestans in potato - a case study for QTL mapping in an allogamous plant species. Genetics 137:67-77. Li, X et al. 1998. Autotetraploids and genetic mapping using common AFLP markers: the R2 allele conferring resistance to P. infestans mapped on chromosome 4. ...
... Quantitative resistance to Phytophthora infestans in potato - a case study for QTL mapping in an allogamous plant species. Genetics 137:67-77. Li, X et al. 1998. Autotetraploids and genetic mapping using common AFLP markers: the R2 allele conferring resistance to P. infestans mapped on chromosome 4. ...
Mendelian Genetics— patterns of Inheritance
... exhibited a trait identical to that of one parent rather than being in between those of both parents. To explore patterns of inheritance, Mendel crossbred thousands of plants in his garden and carefully recorded the offsprings’ traits. ...
... exhibited a trait identical to that of one parent rather than being in between those of both parents. To explore patterns of inheritance, Mendel crossbred thousands of plants in his garden and carefully recorded the offsprings’ traits. ...
Chromosomes in Saccharomyces cerevisiae
... telomeres, or the presence on natural chromosomes of previously unidentified specialized sequences that are required for accurate chromosome segregation. We examined the role of telomere-centromere separation by analyzing the behavior of telocentric derivatives of chromosome III. We made a full-leng ...
... telomeres, or the presence on natural chromosomes of previously unidentified specialized sequences that are required for accurate chromosome segregation. We examined the role of telomere-centromere separation by analyzing the behavior of telocentric derivatives of chromosome III. We made a full-leng ...
Genetic characterizations of three male-steriles in wheat, Triticum aestivum L.
... The influence of background genotype on the Chancellor male sterility was attributed to a superior gene(s) in the parental cultivars. Monosomic analyses of the three male sterile sources suggested complex inheritance. The male-sterile expression in Siete Cerros may be due to aneuploidy or gamete let ...
... The influence of background genotype on the Chancellor male sterility was attributed to a superior gene(s) in the parental cultivars. Monosomic analyses of the three male sterile sources suggested complex inheritance. The male-sterile expression in Siete Cerros may be due to aneuploidy or gamete let ...
Floral specialization and angiosperm diversity: phenotypic
... (ii) differential extinction rates, and (iii) differential speciation rates (Fig. 1). To illustrate the operation of these processes in more detail, consider a clade of plants where three-quarters of the species have flowers with petals, even though the basal condition is for flowers to lack petals. ...
... (ii) differential extinction rates, and (iii) differential speciation rates (Fig. 1). To illustrate the operation of these processes in more detail, consider a clade of plants where three-quarters of the species have flowers with petals, even though the basal condition is for flowers to lack petals. ...
Structural changes following the reversal of a Y chromosome to an
... following a Y chromosome reversal, we investigated an autosome-Y translocation in a wellstudied and tractable organism, Drosophila pseudoobscura. About 10-15 Mya, the ancestral Y chromosome fused to a small autosome (the dot chromosome) in an ancestor of D. pseudoobscura. We used single molecule rea ...
... following a Y chromosome reversal, we investigated an autosome-Y translocation in a wellstudied and tractable organism, Drosophila pseudoobscura. About 10-15 Mya, the ancestral Y chromosome fused to a small autosome (the dot chromosome) in an ancestor of D. pseudoobscura. We used single molecule rea ...
Basic Principles of Heredity
... F1 of this cross, he found that they expressed only one of the phenotypes present in the parental generation: all the F1 seeds were round. Mendel carried out 60 such crosses and always obtained this result. He also conducted reciprocal crosses: in one cross, pollen (the male gamete) was taken from a ...
... F1 of this cross, he found that they expressed only one of the phenotypes present in the parental generation: all the F1 seeds were round. Mendel carried out 60 such crosses and always obtained this result. He also conducted reciprocal crosses: in one cross, pollen (the male gamete) was taken from a ...
Dissolving Dominance
... Concerning Plant Hybrids." Hybridization was an important field at the time—both for practical breeding purposes and for addressing questions about evolution and the origin of new species. Could hybrids ever breed true, for example? If so, under what conditions? Could they create new species or stab ...
... Concerning Plant Hybrids." Hybridization was an important field at the time—both for practical breeding purposes and for addressing questions about evolution and the origin of new species. Could hybrids ever breed true, for example? If so, under what conditions? Could they create new species or stab ...
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.↑ ↑ ↑ ↑