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Diploid in Medical News

Also in the March 24 JNCI

...arn whether HCMV induces telomerase activity, Dawei Xu, M.D., Ph.D., of the Karolinska Institute in Stockholm, Sweden, and colleagues infected normal diploid fibroblasts and malignant glioma cells with HCMV or introduced a copy of the viral immediate early antigen 72 (IE-72) gene into the cells. Infecti...

Designer Strawberries

... these genes through high-throughput screening methods." The electronic preprint of this article entitled "High-efficiency transformation of the diploid strawberry (Fragaria vesca) for functional genomics" (Planta, 2005, Dec 1:1-12) is available online at www.springerlink.com/openurl.asp?genre=article&...
Diploid in Medical Technology

J. Craig Venter, Ph.D. Receives Double Helix Medal from Cold Spring Harbor Laboratory

...e" structure of the DNA molecule, discovered by Dr. Watson along with Dr. Francis Crick in 1953. In 2007 Dr. Venter and his team published the first diploid genome, which was his genome and represents both sets of chromosomes inherited from each of his parents. That publication was the first human genome p...
Diploid in Medical Dictionary

Zygote

...up of cells formed by the first few cell divisions, although... The diploid zygote undergoes repeated cellular division by mitosis to grow into the...... zygotes , zygote ... zygote (zgt) ... zygote - (genetics) the diploid cell resulting from the union of a haploid ... In the embryonic devel...

Chromosome

... To Susceptibility For Type Of Autism ... Chromosomes are microscopic units containing organized genetic information, located in the nuclei of diploid and haploid cells (e.g. In mammals, the Y chromosome contains the gene that triggers embryonic ... They found that human Y chromosome is abl...
Diploid in Biological News

Greatest thing since sliced bread: New data offer important clues toward improving wheat yields

...ysis, the authors attempted to recreate the evolutionary events leading to the spontaneous origin of bread wheat in nature. To do this, they crossed a diploid and tetraploid progenitor species and formed a synthetic strain of wheat in the laboratory. Then they simultaneously measured genetic expression of th...

Human genomics in China

...argest developing country of the world, food security is of the primary concern and rice is the major staple food for Chinese people. Second, rice, a diploid crop, with its relatively small genome size (about 400 Mb), is a nice model of the monocotyledon plants. Third, over the years, the Chinese scientis...

Research sheds light on the mechanics of gene transcription

...of its position in the nucleus. To test the generality of the findings beyond polytene nuclei to common (but much smaller and more difficult to test) diploid cells, the researchers used a technique called fluorescence in situ hybridization, which allowed them to detect the location of specific DNA sequences...

A genetic identity card for Plasmodium populations to improve control strategies

...ysts from 145 infected mosquitoes caught in 11 different localities. The oocyst of the parasite provided the researchers with a means of access to the diploid phase of the microorganism, containing all its genetic information. Up to then, nearly all studies aiming to determine the genetic structure of Plasmo...

First individual genome sequence published

...he HuRef version, represents the first time a true diploid genome from one individualDr. Venterhas been publi...team at JCVI compared and contrasted the new HuRef diploid genome sequence to earlier versions of published h...ure that is made possible by having an individual, diploid genome is the ability to begin to do better and mo...

Sunflower speciation highlights roles for transposable elements in evolution

...s at Kansas State University and appear in the October 24th issue of the journal Current Biology, published by Cell Press. Theory predicts that for diploid species--that is, those possessing two sets of chromosomes, like most animals and plants--the origin of new species through inter-species hybridizatio...

Same-Sex Mating Discovered in a Toxic Fungus

...the same sex, they reported. Meiosis is the process whereby cells divide into two "haploid" cells, each with half the number of chromosomes. Unlike diploid animals and plants, C. neoformans normal state is haploid, Heitman explained. Furthermore, the team showed, strains lacking components required for...
Diploid in Biological Technology

J. Craig Venter Institute Names Robert Friedman, Ph.D., Deputy Director of West Coast Facility

... within the human genome. This team also has plans to sequence the complete diploid genomes of up to 10,000 people over the next 10 years. Dr. Levy has an ongo...amples from the JCVI's Global Ocean Sampling Expedition, the first complete diploid genome, and many other key genomes for researchers worldwide. In her expand...

SNPs Powerful Tools for Association Studies

... See genetic map Meiosis Meiosis is the process by which one diploid cell gives rise to four haploid cells, each containing half of the chromosome complement of the diploid cell. In mammals, meiosis produces sperm cells and egg cells. It is during ...

Inoculation of Viral RNA and cDNA to Potato and Tobacco Plants Using the Helios Gene Gun

... 980985 (1991) Hamalainen, J. H., et al., Recessive and dominant genes interfere with the vascular transport of potato virus A in diploid potatoes, Mol. Plant Microbe Interact. (in press). Klein R. M., et al., High-velocity microprojectiles for delivering nucleic ...
Diploid in Biological Definition

Allele

...y be several different versions of the gene. One version might result in red petals, while another might result in white petals. Some organisms are diploid - that is, they have paired homologous chromosomes in their somatic cells , and thus contain two copies of each gene. An organism in which both co...

Allele frequency

...ir somatic cells (e.g. two loci in the cells of diploid species, which contain two sets of chromosomes) a...f which there may be one or many. Note that for diploid genes, however, the proportion of individuals th...two copies of the allele). So all together 36% of diploid individuals would be expected to carry an allele t...

Cell division

...lled mitosis , followed by division of the cell, called cytokinesis . A diploid cell may also undergo meiosis to produce haploid cells, usually four. ...id cells serve as gametes in multicellular organisms, fusing to form new diploid cells. Multicellular organisms replace worn-out cells through cell divisi...

Cell growth

...s used for a special cell reproduction process of diploid organisms. It produces four special daughter cell... DNA, often symbolized as N . Meiosis is used by diploid organisms to produce haploid gametes. In a diploid organism such as the human organism, most cells of...

Chromosome

...cies have somatic cells (body cells), which are diploid [2n] (they have two sets of chromosomes, one from...romosomes). Gametes are produced by meiosis of a diploid germ line cell. During meiosis, the matching chr...and a female gamete merge ( fertilization ), a new diploid organism is formed. Figure 3 : Kary...

Ploidy

...ary within an organism. In humans, most cells are diploid (containing one set of chromosomes from each paren...owTocToggle("show","hide") 1 Haploid 2 diploid 3 Haplodiploidy 4 Haploidisation 5 ...ts and other algae switch between a haploid and a diploid or polyploid state, with one of the stages empha...

Eukaryote

...cess of sexual reproduction, typically involving an alternation between haploid generations, where only one copy of each chromosome is present, and diploid generations, where two are present, occurring through nuclear fusion (syngamy) and meiosis . There is considerable variation in this pattern, howeve...

Gamete

...g two complete sets of chromosomes and therefore diploid . The zygote cell receives one set of chromosome...pable of producing gametes. Gametes from a mature diploid individual will be produced in the gonadal tissue ... to one (i.e., produces haploid gametes). The diploid somatic cells of an individual will contain one ...

Fungus

...nuclei move from one mycelium into the other, forming a heterokaryon (meaning different nuclei). This is called plasmogamy . Actual fusion to form diploid nuclei is called karyogamy , and may not occur until sporangia are formed. In the Zygomycota , the heterokaryon produces multiple fruiting bodies...

Gene

...ther on the Y chromosome . Many species carry more than one copy of their genome within each of their somatic cells . These organisms are called diploid if they have two copies, or polyploid if they have more than two copies. In such organisms, the copies are practically never identical. With respe...
Diploid in Biological Dictionary

Diploid

Ploidy is the number of complete sets of chromosomes in a biological cell. In humans, the somatic cells that compose the body are diploid , but sex cells (sperm and egg) are haploid. In contrast, tetraploidy is a type of polyploidy and is common in plants, and not... Apples, tulips and ...

Zygote

...metes, especially a fertilized ovum before cleavage ... results in the diploid zygote , with a full set of ... Zygote - Definition of Zygote at D...... zygotes , zygote ... zygote (zgt) ... zygote - (genetics) the diploid cell resulting from the union of a haploid ... ... zygote – Our ...

Sporophyte

...ploid gametophyte generation alternates with a diploid sporophyte , the generation of a plant or alga...n in which two distinct phases (a haploid and a diploid phase) occur in the life history of a plant, each...is the gametophyte.) In the sporophyte phase, a diploid plant body... The sporophyte refers to the...

Spermatogonia

...c type of stem ... Type B spermatogonia undergo mitosis to produce diploid intermediate cells ... Information about spermatogonia in the free ...hich potentially are the male ... ... seminiferous tubules consist of diploid spermatogonia , stem cells that are the ... spermatogonia to stimul...

Sperm cells

..., ... usually consisting of a round or cylindrical nucleated cell , a short ... Sperm cells contribute half of the genetic information to the diploid offspring. ... However, sperm cells make up only about 3% of the volume of semen, a fluid ... Mature sperm cells are about 0.05 millimetre...

Sister Chromatids

...e connected by a centromere. Compare sister chromatids to homologous chromosomes, which are the two different copies of the same chromosome that diploid organisms (like humans) inherit, one from each parent. In other... Cohesin is the protein complex responsible for binding the sister chromatids...

Sister chromatid

...e connected by a centromere. Compare sister chromatids to homologous chromosomes, which are the two different copies of the same chromosome that diploid organisms (like humans) inherit, one from each parent. In other... A chromatid is one among the two identical copies of DNA making up a replicat...

Sex chromosome

...gens or problems that occur during meiosis. Autosomes Vs Sex Chromosomes ... chromosomes that are not involved in sex determination. Human diploid cells have 22 pairs of autosomes and 1 pair of sex ... The sex chromosomes of human beings and other mammals are designated by scien...

Sex cells

... combine at fertilization to form one-of-a-kind offspring. Humans are diploid organisms with two sets of homologous chromosomes, but we also contain ha...keup of their offspring via sex cells or gametes. ... ... sort of diploid husk, morbidly discarded by those haploid sex cells that manage ... ...

Polyploid

...cies have arisen through hybridization between two ... That polyploid derivative species would have the combined genetic markers of ... ... diploid state (which may be polyploid ), with one of the stages ... Polyploid plants are probably most often formed from the pairing of meiotically ... ...
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