• In humans, as in all other mammals, embryos carrying XX sex chromosomes develop as females, whereas XY embryos develop as males. (bmj.com)
  • The main cause of spermatogenic block in the hinny is probably a failure of pairing of homologous chromosomes which results in unfinished synapsis and incomplete meiosis. (thefreedictionary.com)
  • Also, in the present study, it was probable that the proper alignment of the homologous chromosomes was not possible due to the reciprocal translocation, thereby resulting in unbalanced gametes. (thefreedictionary.com)
  • The bones of the human wrist (the carpals), palm (the metacarpals), and fingers and thumb (the digits) bear a strong similarity to the greatly varied homologous structures in the forelimbs and "hands" of mammals. (newworldencyclopedia.org)
  • What are the similarities between(क्या समानता है ) homologous chromosomes? (sawalzawab.com)
  • If shared ancestry must be established apart from structural similarity before structures can be called homologous, then using two structures' similarities as evidence of their evolutionary origin, including their common ancestry, would entail the use of circular reasoning. (newworldencyclopedia.org)
  • Zoo-FISH with human whole-chromosome paint probes delineated syntenic association of human homologous chromosome segments 3-21, 14-15, 16-19, 4-8, 7-16 and 12-22 (twice) in the European mole (Talpa europaea, Talpidae, Eulipotyphla, Mammalia). (uni-muenchen.de)
  • Entire anatomical structures that are similar in different biological taxa ( species , genera , and so on) would be termed homologous if their common ancestor also exhibits a similar anatomical structure. (newworldencyclopedia.org)
  • The pattern of limb bones known as a pentadactyl limb is an example of homologous structures. (newworldencyclopedia.org)