Homologous example sentences

Crossing over is the exchange of genetic material between two homologous chromosomes.Hence, such a series of compounds in which the same functional group substitutes for hydrogen in a carbon chain is called a homologous series.You have read during nomenclature of different homologous series in Unit 12 that alcohols are the hydroxy derivatives of alkanes.In the first meiotic division the homologous chromosomes pair to form bivalents, and undergo crossing over.Do you see any relation between the number of carbon and hydrogen atoms in these compounds? The general formula for alkenes can be written as CnH2n, where n = 2, 3, Can you similarly generate the general formula for alkanes and alkynes? As the molecular mass increases in any homologous series, a gradation in physical properties is seen.Such paired chromosomes are called homologous chromosomes.The homologous chromosomes separate, while sister chromatids remain associated at their centromeres.During this phase the chromosomes are fully condensed and the meiotic spindle is assembled to prepare the homologous chromosomes for separation.Recombination between homologous chromosomes is completed by the end of pachytene, leaving the chromosomes linked at the sites of crossing over.The microtubules from the opposite poles of the spindle attach to the pair of homologous chromosomes.Can you think of the general formula for alkane family or homologous series? The general formula for alkanes is CnH2n+2, where n stands for number of carbon atoms and 2n+2 for number of hydrogen atoms in the molecule.The complex formed by a pair of synapsed homologous chromosomes is called a bivalent or a tetrad.But the chemical properties, which are determined solely by the functional group, remain similar in a homologous series.The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and the tendency of the recombined homologous chromosomes of the bivalents to separate from each other except at the sites of crossovers.This is followed by anaphase I in which homologous chromosomes move to the opposite poles with both their chromatids.