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"Haplo" redirects here. For the fictional character, see The Death Gate Cycle.

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Wikipedia About Diploid

"Haplo" redirects here. For the fictional character, see The Death Gate Cycle.

Ploidy is the number of homologous sets of chromosomes in a biological cell. The ploidy of cells can vary within an organism. In humans, most cells are diploid (containing one set of chromosomes from each parent), but sex cells (sperm and egg) are haploid. In contrast, tetraploidy (four sets of chromosomes) is a type of polyploidy and is common in plants, and not uncommon in amphibians, reptiles, and various species of insects.

The number of chromosomes in one of the mutually-homologous sets is called the monoploid number (x). This is the same number for every set in every cell of a given organism.

Euploidy is the state of a cell or organism having an integral multiple of the monoploid number, possibly excluding the sex-determining chromosomes. For example, a human cell has 46 chromosomes, which is an integer multiple of the monoploid number, 23. A human with abnormal, but integral, multiples of this full set (e.g. 69 chromosomes) would also be considered as euploid. Aneuploidy is the state of not having euploidy. In humans, examples include having a single extra chromosome (such as Down syndrome), or missing a chromosome (such as Turner syndrome). Aneuploidy is not normally considered -ploidy but -somy, such as trisomy or monosomy.

Haploid and Monoploid

The haploid number is the number of chromosomes in a gamete of an individual. This is distinct from the monoploid number which is the number of unique chromosomes in a single complete set.

In humans, the monoploid number (x) equals the haploid number (the number in a gamete, n), that is, x = n = 23. In some species (especially plants), these numbers differ. Commercial common wheat is an allopolyploid with six sets of chromosomes, two sets coming originally from each of three different species, with six copies of chromosomes in each cell. The gametes of common wheat are considered as haploid since they contain half the genetic information of somatic cells, but are not monoploid as they still contain three complete sets of chromosomes from the original three different species (n = 3x).

Most fungi and a few algae are monoploid organisms, and male bees, wasps, and ants are haploid because of the way they develop from unfertilized, haploid eggs. The Australian bulldog ant, Myrmecia pilosula, a haplodiploid species has n = 1, the lowest known (and lowest theoretically possible) n. A monoploid cell is likely to be identical to the cell it was copied from however in haploid cells one of two differing copies of the same chromosome is in the haploid set.

Plants and some algae switch between a haploid and a diploid or polyploid state, with one of the stages emphasized over the other. This is called alternation of generations. Most diploid organisms produce monoploid sex cells that can combine to form a diploid zygote, for example animals are primarily diploid but produce monoploid gametes. During meiosis, germ cell precursors have their number of chromosomes halved by randomly "choosing" one homologue, resulting in haploid germ cells (sperm and ovum).

Search results for Diploid

diploid: Definition from Answers.com

diploid ( ) adj. Double or twofold. Genetics. Having a pair of each type of chromosome, so that the basic chromosome number is doubled: diploidwww.answers.com/topic/diploid

Evolution - A-Z - Diploid / haploid

Diploid / haploid. The condition of having two sets of chromosomes (and therefore two sets of the ... are diploid. The image is of a diploid genome arranged ...www.blackwellpublishing.com/ridley/a-z/Diploid___haploid.asp

JCVI: Research / Projects / Human Diploid Genome / Overview

Human Diploid Genome. Human Microbiome Project. Microbial Sequencing Center ... All the data for the first human diploid genome has been deposited at NCBI, and ...www.jcvi.org/cms/research/projects/huref/overview/

Definition of ploidy

Definition from the Phoenix5 Prostate cancer glossary dictionary. ... Diploid is having two sets or a pair of chromosomes, as normally found in the ...www.phoenix5.org/glossary/ploidy.html

ploidy: Definition from Answers.com

ploidy n. A multiple of the basic number of chromosomes in a cell. [From DIPLOIDY and HAPLOIDY. ... Further information: Haplo-diploid sex-determination system ...www.answers.com/topic/ploidy

Images found for Diploid

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News about Diploid

Breakthrough in genetic map of wheat: scientists

AFP via Yahoo! News Researchers on Thursday reported inroads in an ambitious project to map the genetic sequence of wheat, which ultimately could lead to the creation of more fertile and disease-resistant wheat strains.http://news.yahoo.com/s/afp/20081002/sc_afp/usbiologygenesfr...

Comprehensive mass-spectrometry-based proteome quantification of haploid versus diploid yeast

NatureMass spectrometry is a powerful technology for the analysis of large numbers of endogenous proteins. However, the analytical challenges associated with comprehensive identification and relative quantification of cellular proteomes have so far appeared to be insurmountable. Here, using advances in computational proteomics, instrument performance and sample preparation strategies, we compare ...http://dx.doi.org/10.1038/nature07341

Crucell reports positive results from Phase II rabies study

Pharmaceutical Business ReviewBiopharma company Crucell has announced positive preliminary results of the first Phase II clinical study of its investigational rabies monoclonal antibody combination, which started on March 31, 2008 in the US.http://www.pharmaceutical-business-review.com/article_news.a...

Crucell Announces Positive Results of Phase II Clinical Study Rabies Monoclonal Antibody Combination in US

Marketwire via Yahoo! Finance Dutch biopharma company Crucell N.V. today announced the preliminary results of the first phase II clinical study of its investigational rabies monoclonal antibody combination, which started on 31 March 2008 in the US.http://biz.yahoo.com/iw/081001/0439375.html

News about Diploid

Transferability and polymorphism of barley EST-SSR markers used for ...

BioMed CentralHordeum chilense, a native South American diploid wild barley, is a potential source of useful genes for cereal breeding. The use of this wild species to increase genetic variation in cereals will be greatly facilitated by marker-assisted selection ... http://www.biomedcentral.com/1471-2229/8/97/abstract

How Is Breast Cancer in Men Diagnosed?

American Cancer SocietyIf there's a normal amount of DNA in the cells, they are said to be diploid. If the amount is abnormal, then the cells are described as aneuploid. Although these tests may help determine prognosis, they rarely change the course of treatment and ... http://www.cancer.org/docroot/CRI/content/CRI_2_4_3X_How_is_...

Catholic physician: No to Amendment 48

Rocky Mountain NewsAs a Catholic and retired pro-life obstetrician, I am very concerned about Amendment 48. I am concerned, in a pluralistic, democratic society, about imposing my religious beliefs on another. There is, then, nothing to stop others from imposing their ... http://www.rockymountainnews.com/news/2008/sep/23/catholic-p...

FEEDBACK: Anti-abortion activists overlook key issues

Iowa State DailyThe combination of sperm and egg (both are haploid, viz. have one set of chromosomes) forms a zygote (diploid, with two sets of paired chromosomes) and the zygote has a life expectancy of about 75 years or more. Comparing sperms and eggs with a ... http://www.iowastatedaily.com/articles/2008/09/21/opinion/le...

Apologize to Charles Darwin?

Christian Post175 mutations per diploid genome per generation. Deleterious (harmful) mutations per generation 3, 1.72 percent. I've seen a figure of 98 percent of human mutations being neutral, so maybe 0.28 percent are beneficial. http://www.ncbi.nlm.nih.gov ... http://www.christianpost.com/article/20080917/apologize-to-c...

Search results for Diploid

diploid - Hutchinson encyclopedia article about diploid

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.http://encyclopedia.farlex.com/diploid

diploid

D a y l i l y P a r a d i s e. What is a Diploid / Tetraploid? A daylily either has 22 or 44 chromosomes. A diploid has 22 chromosomes and a tetraploid has 44 chromosomes.http://www.daylilyparadise.com/diploid.html

diploid - OneLook Dictionary Search

Did this word (diploid) satisfy your request (being tried twice for the same crime)? Yes Nohttp://www.onelook.com/?loc=rescb&refclue=being%20tried%20tw...

Diploid - definition from Biology-Online.org

Definition and other additional information on Diploid from Biology-Online.org dictionary. ... Welcome to biology-online.org! Please login to access all site features. Create ... http://www.biology-online.org/dictionary/Diploid

diploid: meaning and definitions — Infoplease.com

diploid: Definition and Pronunciationhttp://dictionary.infoplease.com/diploid
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Videos found for Diploid

Marc Sims Erica Wise part 2

Marc Sims Erica Wise part 2Erica Wise is a Holistic Health Practitioner on the south side of Chicago Candida albicans is a diploid fungus (a form of yeastFlash - Video

meiosis

meiosisdemonstration of a diploid cell undergoing meisosis using plastic bead chromosomesFlash - Video

The Creation Museum Teaches Super E...

The Creation Museum Teaches Super EvolutionI invite everyone to view the full collection of photos taken at the creation "museum". http://www.flickr.com/photos/n1c0star/sets/72157600335006271/ These images were not taken...Flash - Video

Diploids (demo)

Diploids (demo)?? ????????? ?????????? ?????? Heaven Cries ?????? ?????? ?????-?????????????? ?????????? DIPLOIDS. ......Flash - Video

Creationist Museum Is Not A Museum ...

Creationist Museum Is Not A Museum At All.Thanks to cdk007 for posting the original I invite everyone to view the full collection of photos taken at the creation "museum"....Flash - Video

Videos found for Diploid

mov29-16-MossLifeCycle.mov

mov29-16-MossLifeCycle.movthese erect green algae. The evolution of plants is closely tied to evolution of life cycles. This link reviews some features of animal and plant life cycles. Here are animations for moss (fig. 29.16)...quicktime: 3.5 MB w:489px - h:361px

mov29-23-FernLifeCycle.mov

mov29-23-FernLifeCycle.mov. The evolution of plants is closely tied to evolution of life cycles. This link reviews some features of animal and plant life cycles. Here are animations for moss (fig. 29.16) and fern (fig. 29.23) ...quicktime: 2.9 MB w:489px - h:361px

1099892S8.mov

1099892S8.movMovie S8 (Fig. 1F). Actomyosin rings of diploid cells, co-expressing Myo1-CFP and Myo1-YFP were subjected to FRAP. Laser bleaching was done such that only YFP was bleached. The overlayquicktime: 0.1 MB w:500px - h:853px

1099892S9.mov

1099892S9.movMovie S9 (Fig. 1G). Actomyosin rings of diploid cells, co-expressing Myo1-CFP and Myo1-YFP were subjected to FRAP. Laser bleaching was done such that only YFP was bleached. The overlayquicktime: 0.1 MB w:500px - h:857px

fission.mov

fission.mov. Most Prokaryotic cells divide by a process called binary fission where a cell divides in half - forming two daughter cells which are genetically identical. As we have seen, cells can have their gene...quicktime: 0.1 MB w:200px - h:160px

Answers for Diploid

Jesse GWhat is the difference between a haploid cell and a diploid cell? Give an example of a cell that is diploid aJesse GA haploid cell has only one set of chromosomes. A diploid cell has two sets of chromosomes. In human, the somatic cells are diploid, and the gametes are haploid.Alison TExplain how mitosis leads to two daughter cells, each of which is diploid and genetically identical to the ori?Alison TWow this feels like my high school chem class... This is the order: IPMAT (Interphase, Prophase, Metaphase, Anaphase, Telophase) Interphase is when the cell is still "a mess" No parts are even ali...uptempoHow does a cloning plasmid vector exactly split up a diploid allele into haploid allele?uptempoThere is no seperation, you just have your thinking a little messed up. In human cells there are 46 chromosomes (23 pairs) since we are diploid. 23 are from our mom and 23 from our dad. Chromosome...AQIf an original cell had a diploid number of 24, how many chromosomes would be present in each resultant cell?AQ12 at the end of meosis I its considered to be 12 chromosomes not 24 for some reason maybe because they are exact replicas. but end meosis II its def 12Paul SWhat are the diploid numbers of chromosomes for humans (homo sapiens) and for fruit flies (Drosophilia melangaPaul SDiploid number simply means the usual number of chromosomes in body cells, 2 of every kind. In humans, 2n = 46. In fruit flies, 2n = 8. Polytene chromosomes are made when the DNA replicates mul...
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