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Answer
Answer

... Answer: O - formation of egg results from meiosis - 1 egg, 3 polar ...
Chromosome Band 1p36 Contains a Putative Tumor
Chromosome Band 1p36 Contains a Putative Tumor

... region 1p36. Cloning of candidate gene(s) will define whether either a single or multiple tumor suppressor genes are clustered on 1p and are commonly involved in these types of tumors. The p18INK4c gene is located on 1p32 and it is regarded as a tumor suppressor gene.24 Homozygous deletions of the p ...
Fulltext PDF
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... It is the year 2000, most of the human genome has been sequenced, genetically engineered foods are on sale in supermarkets, and gene therapy is a reality rather than science fiction. We understand today how genes act to transform a fertilized egg into a fruitfly with a segmented body and paired legs ...
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... Colored pencils/Crayons Two pennies Procedure: 1) Your teacher will assign two students per group. One student will be the 'mother' and the other student will be the 'father.' 2) Determine the genotype of the baby, by flipping the pennies Note: Heads are Dominant Tails are Recessive 3 Record the gen ...
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Polyploid



Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (Eukaryotes) are diploid, meaning they have two sets of chromosomes—one set inherited from each parent. However, polyploidy is found in some organisms and is especially common in plants. In addition, polyploidy occurs in some tissues of animals that are otherwise diploid, such as human muscle tissues. This is known as endopolyploidy. Species whose cells do not have nuclei, that is, Prokaryotes, may be polyploid organisms, as seen in the large bacterium Epulopicium fishelsoni [1]. Hence ploidy is defined with respect to a cell. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Male bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meiosis.Polyploidy refers to a numerical change in a whole set of chromosomes. Organisms in which a particular chromosome, or chromosome segment, is under- or overrepresented are said to be aneuploid (from the Greek words meaning ""not"", ""good"", and ""fold""). Therefore the distinction between aneuploidy and polyploidy is that aneuploidy refers to a numerical change in part of the chromosome set, whereas polyploidy refers to a numerical change in the whole set of chromosomes.Polyploidy may occur due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.Polyploidy occurs in some animals, such as goldfish, salmon, and salamanders, but is especially common among ferns and flowering plants (see Hibiscus rosa-sinensis), including both wild and cultivated species. Wheat, for example, after millennia of hybridization and modification by humans, has strains that are diploid (two sets of chromosomes), tetraploid (four sets of chromosomes) with the common name of durum or macaroni wheat, and hexaploid (six sets of chromosomes) with the common name of bread wheat. Many agriculturally important plants of the genus Brassica are also tetraploids.Polyploidy can be induced in plants and cell cultures by some chemicals: the best known is colchicine, which can result in chromosome doubling, though its use may have other less obvious consequences as well. Oryzalin will also double the existing chromosome content.
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