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Homologous chromosomes definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!.Homologous chromosomes are chromosome pairs one from each parent that are similar in length, gene position, and centromere location. The position of the genes on each homologous chromosome is the same, however, the genes may contain different alleles..The cell has two sets of each chromosome one of the pair is derived from the mother and the other from the father. The maternal and paternal chromosomes in a homologous pair have the same genes at the same loci, but possibly different alleles..Definition. noun, singular homologous chromosome. genetics A pair of chromosomes having the same gene sequences, each derived from .Last Pages Viewed Homologous chromosome Definition Thus, there are pairs of homologous non chromosomes or autosomes ..Chromosomes are the genetic information coded into human DNA. Each person has pairs of chromosomes, or chromosomes in total. Homologous .A pair of chromosomes made up of two homologs. Homologous chromosomes have corresponding DNA sequences and come from separate .Medical Definition of Homologous chromosomes. Homologous chromosomes A pair of chromosomes that contain the same gene sequences, each derived from one parent..Homologous chromosomes definition two chromosomes , one of paternal origin, the other of maternal origin, that are | Meaning, pronunciation, translations .
Adjective. having the same or a similar relation corresponding, as in relative position or structure. corresponding in structure and in origin, but not necessarily in function The wing of a bird and the foreleg of a horse are homologous. having the same alleles or genes in the same order of arrangement homologous chromosomes..Recent Examples on the Web. This type of gene disruption called non homologous end joining is being used in sickle cell and thalassemia trials. Fox News, “Futuristic gene editing technology may cause cancer,” These example sentences are selected automatically from various online news sources to reflect current usage of the word ‘homologous.’.In biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different taxa.A common example of homologous structures is the forelimbs of vertebrates, where the wings of bats, the arms of primates, the front flippers of whales and the forelegs of dogs and horses are all derived from the same ancestral tetrapod structure..Paul Andersen explains how the process of meiosis produces variable gametes. He starts with a brief discussion of haploid and diploid cells. He compares and contrasts spermatogenesis and oogenesis..Chromosome definition, any of several threadlike bo.s, consisting of chromatin, that carry the genes in a linear order the human species has pairs, designated in order of decreasing size and X and Y for the female and male chromosomes respectively. See more.. the initial stage of the first division of meiosis in which the chromosomes become visible, homologous pairs of chromosomes undergo synapsis and crossing over, chiasmata appear, chromosomes condense with homologues visible as tetrads, and the nuclear membrane and nucleolus disappear compare diakinesis, diplotene, leptotene, pachytene, zygotene.An allosome also referred to as a chromosome, heterotypical chromosome, heterochromosome, or idiochromosome is a chromosome that differs from an ordinary autosome in form, size, and behavior. The human chromosomes, a typical pair of mammal allosomes, determine the of an individual created inual reproduction.Autosomes differ from allosomes because autosomes appear in pairs .Chromosome, the microscopic threadlike part of the cell that carries hereditary information in the form of genes.A defining feature of any chromosome is its compactness. For instance, the chromosomes found in human cells have a combined length of nm nm = metre if the chromosomes were to be unraveled, the genetic material they contain would measure roughly metres about .CHROMOSOMES They are fine threads made up of DNA and proteins compacted into genetically strong threads called chromosomes, for they give color when stained acetocarmine or fuchsin..Learn.Genetics visitors, We’re asking for your help. For over years, the Learn.Genetics website has provided engaging, multimedia educational materials at no cost Learn.Genetics is one of the most used science websites..