Androgenesis from Festuca pratensis Ч Lolium multiЇorum
... complementary agronomic characters, hybridize naturally, and as hybrids regularly exchange genes at high frequency (Canter et al., 1999). Androgenesis was found to be an eective procedure for selecting Lolium±Festuca genotypes comprising gene combinations rarely or never recovered by conventional b ...
... complementary agronomic characters, hybridize naturally, and as hybrids regularly exchange genes at high frequency (Canter et al., 1999). Androgenesis was found to be an eective procedure for selecting Lolium±Festuca genotypes comprising gene combinations rarely or never recovered by conventional b ...
Unbalanced translocation, a major chromosome alteration
... cancers also suffered chromosomal alterations associated with copy number changes but not with LOH. Consistent with the result of array-CGH analysis, all the seven cell lines were defined as being nondiploid with multiple structural chromosome alterations by SKY analysis. Classification of LOHs by chr ...
... cancers also suffered chromosomal alterations associated with copy number changes but not with LOH. Consistent with the result of array-CGH analysis, all the seven cell lines were defined as being nondiploid with multiple structural chromosome alterations by SKY analysis. Classification of LOHs by chr ...
Consulta: creatorFacets:"Leitao, Alexandra" Registros recuperados
... Autores: Bouilly, Karine; Leitao, Alexandra; Chaves, Raquel; Guedes Pinto, Henrique; Boudry, Pierre; Lapegue, Sylvie. Aneuploidy has previously been observed in the Pacific oyster, Crassostrea gigas, and shown to be negatively correlated with growth. Moreover, a significant impact of atrazine exposu ...
... Autores: Bouilly, Karine; Leitao, Alexandra; Chaves, Raquel; Guedes Pinto, Henrique; Boudry, Pierre; Lapegue, Sylvie. Aneuploidy has previously been observed in the Pacific oyster, Crassostrea gigas, and shown to be negatively correlated with growth. Moreover, a significant impact of atrazine exposu ...
Massive Changes in Genome Architecture Accompany
... sexual spore, producing progeny that are not self-fertile (Raju and Perkins 1994; Merino et al. 1996; Gallegos et al. 2000). The suppression of recombination in this region is therefore thought to have evolved to ensure the correct packaging of nuclei of opposite mating type into the sexual spore, t ...
... sexual spore, producing progeny that are not self-fertile (Raju and Perkins 1994; Merino et al. 1996; Gallegos et al. 2000). The suppression of recombination in this region is therefore thought to have evolved to ensure the correct packaging of nuclei of opposite mating type into the sexual spore, t ...
Fertilization
... • Capacitation (ability to fertilize egg) gained within female reproductive tract ...
... • Capacitation (ability to fertilize egg) gained within female reproductive tract ...
PREIMPLANTATION GENETIC DIAGNOSIS
... the odds of achieving a successful pregnancy are lower than for couples who undergo PGD for an autosomal-recessive condition.Autosomal-recessive disorders, such as cystic fibrosis, spinal muscular atrophy and sickle cell disease only affect individuals who inherit two mutant alleles, one from each p ...
... the odds of achieving a successful pregnancy are lower than for couples who undergo PGD for an autosomal-recessive condition.Autosomal-recessive disorders, such as cystic fibrosis, spinal muscular atrophy and sickle cell disease only affect individuals who inherit two mutant alleles, one from each p ...
Chapter 1
... complete set of developmental instructions for creating proteins that initiate the making of a human organism Each human has approximately 20,500 genes Human genome consists of many genes that collaborate both with each other and with non-genetic factors inside and outside the body Genetic exp ...
... complete set of developmental instructions for creating proteins that initiate the making of a human organism Each human has approximately 20,500 genes Human genome consists of many genes that collaborate both with each other and with non-genetic factors inside and outside the body Genetic exp ...
Multiple Roles of the Y Chromosome in the Biology of
... It is generally accepted that the sex chromosomes of most animals arose from a couple of homologous autosomes after the acquisition of a dominant sex determination gene[17,18] and that the Y chromosome is the result of the degeneration of one of them[19,20,21]. Its degeneration would be a consequenc ...
... It is generally accepted that the sex chromosomes of most animals arose from a couple of homologous autosomes after the acquisition of a dominant sex determination gene[17,18] and that the Y chromosome is the result of the degeneration of one of them[19,20,21]. Its degeneration would be a consequenc ...
Test Bank
... ____ 29. The arctic fox is blue-gray in the summer and white in the winter. What most likely influence(s) this change? a. genes and the environment b. dominant alleles c. the environment alone d. codominant alleles ____ 30. The number of chromosomes in a gamete is represented by the symbol a. Z. b. ...
... ____ 29. The arctic fox is blue-gray in the summer and white in the winter. What most likely influence(s) this change? a. genes and the environment b. dominant alleles c. the environment alone d. codominant alleles ____ 30. The number of chromosomes in a gamete is represented by the symbol a. Z. b. ...
Do gametes woo? Evidence for non-random unions at
... evidence, that the combination of egg and sperm at fertilization is largely independent of their genetic content. This equal transmission of alternative alleles through meiosis in heterozygotes ensures a balanced parental genetic contribution to offspring at each generation. Mendel’s First Law captu ...
... evidence, that the combination of egg and sperm at fertilization is largely independent of their genetic content. This equal transmission of alternative alleles through meiosis in heterozygotes ensures a balanced parental genetic contribution to offspring at each generation. Mendel’s First Law captu ...
Heredity Practice Problems
... fish. These fish resemble transparent eels with overlarge heads and very long, pointy teeth. Because of where they live, very little is know about these fish but for the sake of this problem, we shall assume that some of them can produce biochemical lights along the length of their bodies and some c ...
... fish. These fish resemble transparent eels with overlarge heads and very long, pointy teeth. Because of where they live, very little is know about these fish but for the sake of this problem, we shall assume that some of them can produce biochemical lights along the length of their bodies and some c ...
CHROMOTHRIPSIS FROM DNA DAMAGE IN MICRONUCLEI The
... to be discussed below. PCR amplification across rearrangement junctions from whole genome-amplified DNA (Extended Data Fig. 6a) confirmed the rearrangements, but could not exclude amplification errors. However, by sequencing rearrangement junctions with nearby heterozygous sites (Extended Data Fig. ...
... to be discussed below. PCR amplification across rearrangement junctions from whole genome-amplified DNA (Extended Data Fig. 6a) confirmed the rearrangements, but could not exclude amplification errors. However, by sequencing rearrangement junctions with nearby heterozygous sites (Extended Data Fig. ...
Chapter 1: Introduction: Themes in the Study of Life
... Here is an idea that will recur throughout your study of the function of molecules: Change the structure, change the function. You see this in enantiomers, you will see it in proteins and enzymes, and now we are going to look at testosterone and estradiol. Notice how similar these two molecules are, ...
... Here is an idea that will recur throughout your study of the function of molecules: Change the structure, change the function. You see this in enantiomers, you will see it in proteins and enzymes, and now we are going to look at testosterone and estradiol. Notice how similar these two molecules are, ...
Genetics Questions - G. Holmes Braddock
... ____ 29. The arctic fox is blue-gray in the summer and white in the winter. What most likely influence(s) this change? a. genes and the environment b. dominant alleles c. the environment alone d. codominant alleles ____ 30. The number of chromosomes in a gamete is represented by the symbol a. Z. b. ...
... ____ 29. The arctic fox is blue-gray in the summer and white in the winter. What most likely influence(s) this change? a. genes and the environment b. dominant alleles c. the environment alone d. codominant alleles ____ 30. The number of chromosomes in a gamete is represented by the symbol a. Z. b. ...
Genetics chapt10
... The allele for dark hair dominates the allele for light hair. If both parents are heterozygous for earlobe shape and hair color, what types of offspring can they produce, and what is the probability for each type? Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or di ...
... The allele for dark hair dominates the allele for light hair. If both parents are heterozygous for earlobe shape and hair color, what types of offspring can they produce, and what is the probability for each type? Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or di ...
Chapter 03 Lecture Outline 3.1 Mendel`s Study of Pea Plants
... Random Alignment of Homologs • Mendel’s Law of Independent Assortment can be explained by the random alignment of homologous chromosomes during meiosis • Consider a situation where a double heterozygote carries the dominant and recessive alleles for two genes, each gene on a different chromosome – ...
... Random Alignment of Homologs • Mendel’s Law of Independent Assortment can be explained by the random alignment of homologous chromosomes during meiosis • Consider a situation where a double heterozygote carries the dominant and recessive alleles for two genes, each gene on a different chromosome – ...
Chpt8_RecombineDNA.doc
... A diploid organism has two copies of each chromosome. If it has four chromosomes, there are two pairs, A and A’ and B and B’, not four different chromosomes A, B, C and D. One copy of each chromosome came from its father (e.g. A and B) and one copy of each came from its mother (e.g. A’ and B’). Meio ...
... A diploid organism has two copies of each chromosome. If it has four chromosomes, there are two pairs, A and A’ and B and B’, not four different chromosomes A, B, C and D. One copy of each chromosome came from its father (e.g. A and B) and one copy of each came from its mother (e.g. A’ and B’). Meio ...
Saccharomycopsis fibuligera and Yarrowia lipol`ica
... ages of amylopectin. For the colonies of A6 and A18, clear haloes were observed after growth on YPSS for 2 d. Colonies of the intergeneric hybrid between A6 and Y. lipobtica 21501-4B also showed a clear halo around the colony on YPSS. On this medium, colonies of Y. lipobtica 21501-4B did not show a ...
... ages of amylopectin. For the colonies of A6 and A18, clear haloes were observed after growth on YPSS for 2 d. Colonies of the intergeneric hybrid between A6 and Y. lipobtica 21501-4B also showed a clear halo around the colony on YPSS. On this medium, colonies of Y. lipobtica 21501-4B did not show a ...
Unit 30C Cell Division, Genetics, and Molecular
... For most cells, the nuclear division that occurs during mitosis marks only a small part of their cycle. The stage between division phases, called interphase, is marked by a period of rapid growth (gap 1, or G1), the duplication of chromosomes (synthesis, or S), another period of growth (gap 2, or G2 ...
... For most cells, the nuclear division that occurs during mitosis marks only a small part of their cycle. The stage between division phases, called interphase, is marked by a period of rapid growth (gap 1, or G1), the duplication of chromosomes (synthesis, or S), another period of growth (gap 2, or G2 ...
Article Selection Is No More Efficient in Haploid than in Diploid Life
... strongly than masking. Our observations have implications for the role of haploid life stages in the purging of deleterious mutations, as well as for the evolution of ploidy. Key words: high throughput sequencing, haploid, diploid, biphasic life cycle, masking, expression breadth, expression noise, ...
... strongly than masking. Our observations have implications for the role of haploid life stages in the purging of deleterious mutations, as well as for the evolution of ploidy. Key words: high throughput sequencing, haploid, diploid, biphasic life cycle, masking, expression breadth, expression noise, ...
Genome partitioning of genetic variation for complex traits using
... the proportion of variance explained by all the autosomal SNPs (hG2) ficant for BMI and vWF. These results are consistent with the variance for height, BMI, vWF and QTi in each cohort and the combined data explained by each chromosome for height and QTi (but less so for BMI where applicable (Online ...
... the proportion of variance explained by all the autosomal SNPs (hG2) ficant for BMI and vWF. These results are consistent with the variance for height, BMI, vWF and QTi in each cohort and the combined data explained by each chromosome for height and QTi (but less so for BMI where applicable (Online ...
Homologous Recombination Between Episomal Plasmids and Chromosomes in Yeast.
... The actual measurements of recombination were carried out simply by isolating subclones of each transformant on medium that lacks leucine and, thus, selects maintenance of the plasmid. Colonies were suspended in water and replated on medium lacking uracil as well as leucine and comparing the number ...
... The actual measurements of recombination were carried out simply by isolating subclones of each transformant on medium that lacks leucine and, thus, selects maintenance of the plasmid. Colonies were suspended in water and replated on medium lacking uracil as well as leucine and comparing the number ...
LIST OF CHECK-UP QUESTIONS for
... 9. Work with microscope starts from a small magnification (according to the rules). Magnification is x 56. Indicate, please, the correct answer: a) ocular x 7, objective 8 b) ocular x 10, objective 40 c) ocular x 15, objective 40 d) objective x 8, ocular 10 CORRECT e) objective x 40, ocular 10 10. I ...
... 9. Work with microscope starts from a small magnification (according to the rules). Magnification is x 56. Indicate, please, the correct answer: a) ocular x 7, objective 8 b) ocular x 10, objective 40 c) ocular x 15, objective 40 d) objective x 8, ocular 10 CORRECT e) objective x 40, ocular 10 10. I ...
Ploidy
Ploidy is the number of sets of chromosomes in a cell. Usually a gamete (sperm or egg, which fuse into a single cell during the fertilization phase of sexual reproduction) carries a full set of chromosomes that includes a single copy of each chromosome, as aneuploidy generally leads to severe genetic disease in the offspring. The gametic or haploid number (n) is the number of chromosomes in a gamete. Two gametes form a diploid zygote with twice this number (2n, the zygotic or diploid number) i.e. two copies of autosomal chromosomes. For humans, a diploid species, n = 23. A typical human somatic cell contains 46 chromosomes: 2 complete haploid sets, which make up 23 homologous chromosome pairs.Because chromosome number is generally reduced only by the specialized process of meiosis, the somatic cells of the body inherit and maintain the chromosome number of the zygote. However, in many situations somatic cells double their copy number by means of endoreduplication as an aspect of cellular differentiation. For example, the hearts of two-year-old children contain 85% diploid and 15% tetraploid nuclei, but by 12 years of age the proportions become approximately equal, and adults examined contained 27% diploid, 71% tetraploid and 2% octaploid nuclei.Cells are described according to the number of sets present (the ploidy level): monoploid (1 set), diploid (2 sets), triploid (3 sets), tetraploid (4 sets), pentaploid (5 sets), hexaploid (6 sets), heptaploid or septaploid (7 sets), etc. The generic term polyploid is frequently used to describe cells with three or more sets of chromosomes (triploid or higher ploidy).