Homologous chromosome
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A pair of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during...
Meiosis (redirect from Tetrad (chromosomal formation))Chi (Χ)) between the homologous chromosomes. In most organisms, these links can help direct each pair of homologous chromosomes to segregate away from...
Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister...
Ploidy (redirect from Chromosome number)number of maternal and paternal chromosome copies, respectively, in each homologous chromosome pair, which chromosomes naturally exist as. Somatic cells...- Chromosome segregation is the process in eukaryotes by which two sister chromatids formed as a consequence of DNA replication, or paired homologous chromosomes...
by facilitating chromosomal crossover, in which regions of similar but not identical DNA are exchanged between homologous chromosomes. This creates new...
Prophase (section Condensation of chromosomes)paternally derived non-sister chromatids of homologous chromosome pairs.: 98 The paired homologous chromosome bound by the synaptonemal complex are referred...
Genetic recombination (section Chromosomal crossover)alleles whose loci are on different but homologous chromosomes (random orientation of pairs of homologous chromosomes in meiosis I); & (2) intrachromosomal...
pairs of chromosomes, a total of 46 chromosomes. The first 22 pairs are called autosomes. Autosomes are homologous chromosomes i.e. chromosomes which contain...
Sister chromatids (redirect from Sister chromosome)corresponding sections of the homologous chromatids with which they are paired during meiosis. Homologous chromosomes might or might not be the same...
is a chromosome abnormality caused by exchange of parts between non-homologous chromosomes. Two detached fragments of two different chromosomes are switched...
Bivalent (genetics) (redirect from Bivalent chromosome)bivalent is one pair of chromosomes (homologous chromosomes) in a tetrad. A tetrad is the association of a pair of homologous chromosomes (4 sister chromatids)...
Synapsis (section Chromosome silencing)of two chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover...
recombination between repetitive sequences, or through chromosomal breakage followed by non-homologous end joining. Inversions are of two types: paracentric...- according to the 2nd Mendelian rule (“Law of Segregation of genes“) homologous chromosomes are randomly distributed among daughter nuclei, there are various...
Nondisjunction (redirect from Chromosomal nondisjunction)Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division (mitosis/meiosis). There are three...
Sequence homology (redirect from Homologous gene)whose relationship was completely homologous in an ancestral species. In allopolyploids, the homologous chromosomes within each parental sub-genome should...
Polyploidy (section Homoeologous chromosomes)pair of (homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two complete sets of chromosomes, one from...- strands derived from different sources, such as from different homologous chromosomes or even from different organisms. One such example is the heteroduplex...
Chromatid (category Chromosomes)confused with the ploidy of an organism, which is the number of homologous versions of a chromosome. Chromatids may be sister or non-sister chromatids. A sister...
- how interchanges between like chromosomes may take place. It has been observed when the homologous pairs of chromosomes unite before maturation of the
- of the 23 pairs of homologous chromosomes) and trisomies (a extra chromosome at one or more of the 23 pairs of homologous chromosomes) were found to be
- chromosomes, which represents the diploid number (2n). Chromosomes exist in pairs; referred to as homologous chromosomes, one homologous chromosome is