Copyright © 2016 sentencedict.com All Rights Reserved Contact: Meaning: n. (genetics) an organism or cell having two sets of chromosomes or twice the haploid number.
The plant life cycle alternates between a, We examined the genetics of hybrid incompatibility between two closely related, Many algae are characterized by an alternation of haploid gametophyte and, Male sporogenesis begins with the division of a, Double fertilization of egg cell and central cell initiates development of the, Zygotic embryogenesis in animals and plants starts with the fusion of the haploid female and male gametes, giving rise to a, The change in allele frequency at the modifier locus during, Oocytes and sperm are haploid, with one set of chromosomes, whereas somatic cells are, In triploids, three separate haploid chromosome sets have been observed, as well as one, At this stage the triploid endosperm nuclei are approximately the same size as the, Most basidiomycete fungi do not undergo nuclear fusion to form, Most of our discussions center around a simple case in which the loci are modeled as, We started the experiments described below by establishing large populations of, Recent molecular data indicate differences in molecular chromosome organization among the genomes of, Like tomato and pepper, eggplant is an autogamous, Histological and cytological studies confirmed the existence of, Patients with aneuploid tumors have a poorer five-year survival rate than patients with, Once the two desmids have joined, their cytoplasm fuses into a single, Sixty-one triploid F 1 plants were crossed with, Attempts to introduce variability from wild, In most diplonts, mitosis occurs only in the, Sporic life cycles are sometimes called diplohaplontic, indicating that both, The practical application that is considered is the full-sib family of a, Currently, six major tetraploid races are recognized and their, He argues that a cladistic treatment of data from, There is, however, evidence of genome downsizing in polyploids relative to their, Note that copy numbers in tetraploids were slightly less than double those in respective, In the present context, a molecular genetic marker is considered as a point on a pair of homolog chromosomes of a, The hexaploid wheat genome is composed of three related, The compactness of rice and sorghum genomes is evident compared to barley and, Both F. jinshaense and F. gilesii are self-incompatible with heterostylous flowers and are, If it is primarily haploid, it is said to have a haplontic cycle, and if it is primarily, The life-cycle is of haplontic type showing alternation of dominant haploid stage with short-lived, Meiosis is the program used by sexually reproducing organisms to produce haploids from, We also wished to explore patterns of gene evolution in polyploid cotton, using as a comparative framework orthologs from the, Yellow starthistle is a highly competitive, An obvious question is whether the mat bias is absent in azygotic meiosis after homologous chromosomes have coexisted in, However, to a low extent, viable spores can also be recovered from a very small population of homozygous, As discussed in the introduction, the majority of studies aimed at transforming normal, The presence of pheromone might induce cells to adopt a bipolar budding pattern similar to, The alternation between haploid gametophyte and, Simultaneous analysis of the haploid megagametophyte and, The micronuclei of wild-type pairs provided a reliable, In all four cases the embryos produced by mutant females had a small number of apparently polyploid nuclei rather than the normal, large number of, Note that the life cycle of the wild type usually is, About 200,000 years ago, at nearly the same time that modern humans originated in Africa, two, Gynogenesis is like parthenogenesis in that, In the following, we use superscripts H, S, and D to denote variables measured after haploid selection, syngamy, and, The observed segmental structure of the Brassica genome strongly suggests that the extant Brassica, In all three polyploids, the respective tetraploid and hexaploid genome sizes are slightly larger than the corresponding multiple of the, The most common mode of haplodiploid reproduction is arrhenotoky where males develop from unfertilized haploid eggs and females from fertilized, The alternate phase of the plant life cycle is the sporophyte, the, In fungi, plasmodial slime mold displays a, The first hypothesis assumes that triploidy is associated with the origin of parthenogenesis and that both, The endosperm, a result of double fertilization in flowering plants, is a triploid tissue whose genetic composition is more complex than, The hybrid plants, used as the female parents, were back-crossed with H. polyrhizus and S. megalanthus, crossed with the, The results from these studies are generally consistent with theoretical expectations of higher genetic diversity in tetraploids than their, These fuse by the process of fertilisation to form, In each of these, the fundamental number is double the, The genus Gossypium of the Malvaceae comprises 45, To prevent spawning, sterile oysters are now cultured by crossbreeding tetraploid and, Figure 3E shows an example of metaphase spread and its karyogram of a heterozygous, This is actually a species complex that includes distinct, Then there would be no way to untangle the mess of AD sequences without comparing them to their, Fertilization leads to the formation of a, Like all land plants, they have a life cycle referred to as alternation of generations, characterized by alternating, Triploid eggs produced mostly aneuploid larvae and had an extremely small chance of generating viable offspring when fertilized by sperm from, The type of parthenogenesis that likely occurs is automixis with terminal fusion, a process in which two terminal products from the same meiosis fuse to form a, Technically the tissue-cells are said to contain the, They appear with this arrangement in all subsequent nuclear divisions in the, Similarly all the higher animals appear to us as independent organisms with, The uninitiated sees in the more highly organised plants only a succession of. Autopolyploids may arise from the fusion of, 9.
At fertilization, when the haploid gametes fuse, the, 7. Human diploid cell vaccine (HDCV)-A rabies vaccine in which the virus is grown in cultures of human cells, concentrated, and inactivated for IM or ID injection. A wide range of ploidy variation occur to the complex, for example diploid, tetraploid, hexaploid, octoploid, and even dodecaploid.
Furthermore, maternal biased chromosome conversion was revealed by GISH in both triploid and, 26. It is certain, however, that both higher animals and higher plants are, 17. Autotetroploid rice has double genome compared with, 6. As most irises are diploid, having two sets of chromosomes.
Sentence with the word diploid The term diploid describes a state in which a cell has two sets of homologous chromosomes, or two chromosomes that are the same. During reproduction, gametes bind together to form a diploid zygote.
The diploid part of the cycle is called the sporophyte, which is the dominant stage.
There are obvious difference on morphology and cytology between polypoid and, 30. , Diploid cells reproduce through the process of mitosis.
Comparisons of conidial size and DNA content per conidia for 'hybrids' and parental strains indicated that the 'hybrids' were, 19.
Mosses are commonly confused with lichens, diploid sporophyte generation is dominant.
First, every biologist knows that most body cells of most animals are, 16. of a cell, having two complete sets of chromosomes, one from each parent, A diploid is a type of cell that contains two sets of chromosomes. Diploid in a sentence Similar words: haploid, diploma, diplomat, diplomacy, diplomatic, diplomatic immunity, tabloid, exploit. Most fungi and algae are haploid and contain a set of single, unpaired chromosomes. The stoma characters of both tetraploid and, 10. Found in almost all animal cells, diploid cells : 2. The eggs and sperm are haploid and contain only one chromosome from each pair. A diploid is a type of cell that contains two sets of chromosomes. Examples of Diploid in a sentence. Diploid cells reproduce through the process of mitosis. Quantitative analysis of DNA content showed 30 speciments from trichoepithelioma were all, 25.
of a cell or organism having two sets of chromosomes or twice the haploid number. Methods: The seeds of 13 cultivated populations of, 13. Most cells are diploid; they have two copies of each chromosome. In summary, meiosis takes place in a diploid basidium. Crucially, the finished sequence must cover at least 98 percent of all twenty-three pairs of chromosomes that is, the diploid genome at a stringent accuracy of 99.999 percent or just 1 error per 100,000 bases. The cross-compatibility between cultivated rice and 6, 12.
, Somatic cells in your body are all diploid cells. Examples of diploid in a sentence. They may fuse to form the, 27.
During reproduction, gametes bind together to form a diploid zygote. The sexual organs derived from Hevea Brasiliensis were treated with colchicine, and, 23.
Diploid in a sentence 1.
Prototrophic hybrids have been obtained by the protoplast fusion between auxotrophic haploid and, 21. 1. , During reproduction, gametes bind together to form a diploid zygote. 8 2 diploid cell with the normal complement of 46.
The formation of the aleuronic layer cell wall in autotetraploid and its original, 18. Diploid in a sentence 31. Finally, in the sporic life cycle, the living organism alternates between haploid and, 28. The autopolyploid B 97 differ widely from its parents, 22. diploid cells reproduce through the process of mitosis. The cells of the blastula , called blastomeres, also each receive a full, 24. 2.
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Establishment of allopolyploids is favored because of greater niche separation from their, 29. Polar nuclei The, usually two, haploid nuclei found midway along the EMBRYOSAC, forming a binucleate central cell. During the process of fertilization a zygote with the, 20. Examples of Haploid in a sentence Haploid drones have 16 chromosomes and not 32 like the diploid queen. Somatic cells in your body are all diploid cells. adj.
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, Found in almost all animal cells, diploid cells contain two sets of chromosomes. 32. Show More Sentences The kelp life cycle involves a diploid sporophyte and haploid gametophyte stage.