Same-Sex Mating Discovered in a Toxic Fungus
..., 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 mating -- including pheromones, pheromone receptors and other genes with known roles in mating -- exh...
Sunflower speciation highlights roles for transposable elements in evolution
...ublished 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 hybridization may be facilitated by rapid reorganization of genomes. Previous work on three independently derive...
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Inoculation of Viral RNA and cDNA to Potato and Tobacco Plants Using the Helios Gene Gun
... 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 acids into living cells, BioTechnology, 24 , 384-386 (1992) Matthews, R. E. F., Plant Virolog...
SNPs Powerful Tools for Association Studies
... 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 meiosis that recombinatio...
diploid at Biology Definition
Zygote
... ovum from a female —merge into a single
diploid cell called the zygote . Animal zygotes undergo mitotic cell divisions to become an embryo . Other organisms may undergo meiotic cell division at this time (for more information refer to biological life cycles ). Twins and multiple ...
Trait
...origin of traits 3 Genetic origin of traits in
diploid organisms 4 Mendelian expression of genes in
diploid organisms 5 Biochemistry of dominance and extensions to expression of traits Definition...
Plant
... haploid stage, called the gametophyte , and a
diploid stage, called the sporophyte . The sporophyte is short-lived and remains dependent on its parent. Vascular plants first appeared during the Silurian period, and by the Devonian had diversified and spread into many different land environments. ...
Plant
... haploid stage, called the gametophyte , and a
diploid stage, called the sporophyte . The sporophyte is short-lived and remains dependent on its parent. Vascular plants first appeared during the Silurian period, and by the Devonian had diversified and spread into many different land environments. ...
Meiosis
...y . It is a form of nuclear division by which a
diploid parent produces four haploid daughter cells. Th...cur, fusion of the gametes would not result in a
diploid condition (2n) but 4n. Meiosis also provides opportunities for new combination (through crossing ov...
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diploid at Biology Dictionary
Zygote
... a sperm cell from a male-merge into a single
diploid cell called the zygote (or zygocyte). Full art...icle >>> Homo zygote cells are
diploid or polyploid and have the same alleles at a locus (position) on homologous chromosomes . Fu...
Zygospore
...pore In fungi , a structure that forms from the
diploid zygote created by the fusion of haploid hyphae of different mating type s. After a period of dormancy , the zygospore forms sporangia, where meiosis occurs and spore s form. Full article >>> zygospore A thick-walled, resi...
Y chromosome
...human beings females have two X chromosomes in
diploid cell s; males have an X and a Y chromosome . Full article >>> autosome Any chromosome that is not a sex chromosome . autotomy The self amputation of an appendage. For example, the casting off of a section of a lizard's tail caugh...
Xylem
...s . Z zygote : a fertilized egg cell , which is
diploid . Full article >>> xylem . Plant tissue that conducts water and nutrients from the roots up through the plant . Y Index ... Full article >>> xylem The tube-shaped, nonliving portion of the vascular system in ...
X chromosome
...human beings females have two X chromosomes in
diploid cell s; males have an X and a Y chromosome . Full article >>> se x chromosome one of a pair of chromosomes whose composition determines gender sex hormone A hormone that controls the timing of reproduction and sexual cha...
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Designer Strawberries
...le 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&id=doi:10.1007/s00425-005-0170-3 [Epub ahead of print]. The work was funded by a Virginia Tech ASP...
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diploid at Medicine Technology