diploid nucleus: a nucleus containing the diploid or normal double complement of chromosomes for one somatic cell. Views expressed here do not necessarily reflect those of Biology Online, its staff, or its partners. Because two gametes necessarily combine during sexual reproduction to form a single zygote from which somatic cells are generated, healthy gametes always possess exactly half the number of sets of chromosomes found in the somatic cells, and therefore "haploid" in this sense refers to having exactly half the number of sets o… Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Diploma de Español Como Lengua Extranjera.

Diploid nucleus a nucleus containing the diploid or normal double complement of chromosomes for one somatic Cell. Plants are characterized by having alternation of generations in their life cycles. haploid nucleus A cell nucleus with half the normal number of chromosomes, as in germ cells (ova and sperm) following the normal reduction divisions in gametogenesis. A cell nucleus that contains double the normal number of chromosomes.

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The content on this website is for information only. Before using our website, please read our Privacy Policy. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Free learning resources for students covering all major areas of biology. © 2001-2020 BiologyOnline. a nucleus containing the diploid or normal double complement of chromosomes for one somatic cell. Nuclei possessing pairs of homologous chromosomes are diploid (symbolised by 2n) These nuclei will possess two gene copies (alleles) for each trait; All somatic (body) cells in the organism will be diploid, with new diploid cells created via mitosis; Diploid cells are present in most animals and many plants; Haploid Diploid nucleus in the largest biology dictionary online. •  Diploid nuclei have pairs of homologous chromosomes, •  Haploid nuclei have one chromosome of each pair,     As sexually reproducing organisms receive genetic material from both parents, they have two sets of chromosomes (diploid), To reproduce in turn, these organisms must create sex cells (gametes) with half the number of chromosomes (haploid), When two haploid gametes fuse, the resulting diploid cell (zygote) can grow and develop into a new organism, Nuclei possessing pairs of homologous chromosomes are diploid (symbolised by 2n), Nuclei possessing only one set of chromosomes are haploid (symbolised by n), As sexually reproducing organisms receive genetic material from, To reproduce in turn, these organisms must create sex cells (gametes) with, These nuclei will possess two gene copies (alleles) for each trait, All somatic (body) cells in the organism will be diploid, with new diploid cells created via mitosis, Diploid cells are present in most animals and many plants, These nuclei will possess a single gene copy (allele) for each trait, All sex cells (gametes) in the organism will be haploid, and are derived from diploid cells via meiosis, Haploid cells are also present in bacteria (asexual) and fungi (except when reproducing). All Rights Reserved. This tutorial is a review of plant mitosis, meiosis, and alternation of generations. The term haploid is used with two distinct but related definitions. Any information here should not be considered absolutely correct, complete, and up-to-date. In the most generic sense, haploid refers to having the number of sets of chromosomes normally found in a gamete. See also: nucleus It is not intended to provide medical, legal, or any other professional advice. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. .. Diploid.