- DNA polyploidy
- полиплоидия ДНК
Англо-русский медицинский словарь. 2012.
DNA polyploidy
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Polyploidy — occurs in cells and organisms when there are more than two homologous sets of chromosomes.Most organisms are normally diploid; polyploidy may occur due to abnormal cell division. It is most commonly found in plants. Haploidy may also occur as a… … Wikipedia
DNA condensation — refers to the process of compacting DNA molecules in vitro or in vivo.[1] Mechanistic details of DNA packing are essential for its functioning in the process of gene regulation in living systems. Condensed DNA often has surprising properties,… … Wikipedia
evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… … Universalium
Polyploid — This image shows haploid (single), diploid (double), triploid (triple), and tetraploid (quadruple) sets of chromosomes. Triploid and tetraploid chromosomes are examples of polyploidy. Polyploid is a term used to describe cells and organisms… … Wikipedia
Karyotype — A karyotype is the number and appearance of chromosomes in the nucleus of an eukaryotic cell. The term is also used for the complete set of chromosomes in a species, or an individual organism.[1][2]p28[3] Karyotypes describe the number of… … Wikipedia
heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… … Universalium
Speciation — Part of a series on Evolutionary Biology … Wikipedia
G. Ledyard Stebbins — Infobox Person name=G. Ledyard Stebbins caption= birth date=birth date|1906|1|6|mf=y birth place=Lawrence, New York dead=dead death date=death date and age|2000|1|19|1906|1|6|mf=y death place=Davis, CaliforniaGeorge Ledyard Stebbins, Jr. (January … Wikipedia
mutation — mutational, adj. mutationally, adv. /myooh tay sheuhn/, n. 1. Biol. a. a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome. b. an individual, species, or the like,… … Universalium
Meiosis — Not to be confused with miosis, mitosis, or myositis. For the figure of speech, see meiosis (figure of speech). Events involving meiosis, showing chromosomal crossover Meiosis (pronounced /maɪˈoʊsɨs/&# … Wikipedia
Hybrid (biology) — In biology and specifically, genetics, the term hybrid has several meanings, all referring to the offspring of sexual reproduction.[1] In general usage, hybrid is synonymous with heterozygous: any offspring resulting from the mating of two… … Wikipedia
