Search results
Results from the WOW.Com Content Network
Oogenesis starts with the process of developing primary oocytes, which occurs via the transformation of oogonia into primary [oocyte]s, a process called oocytogenesis. [11] From one single oogonium, only one mature oocyte will rise, with 3 other cells called polar bodies. Oocytogenesis is complete either before or shortly after birth.
An immature ovum is a cell that goes through the process of oogenesis to become an ovum. It can be an oogonium, an oocyte, or an ootid. An oocyte, in turn, can be either primary or secondary, depending on how far it has come in its process of meiosis.
Oogonial stem cells (OSCs), also known as egg precursor cells or female germline cells, are diploid germline cells with stem cell characteristics: the ability to renew and differentiate into other cell types, different from their tissue of origin. [1]
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. Procreative biological processes of humanity Part of a series on Sex Biological terms Sexual dimorphism Sexual differentiation Feminization Virilization Sex-determination system XY XO ZW ZO Temperature-dependent Haplodiploidy Heterogametic sex Homogametic sex Sex chromosome X chromosome Y ...
Developmental biology is the study of the process by which animals and plants grow and develop. Developmental biology also encompasses the biology of regeneration, asexual reproduction, metamorphosis, and the growth and differentiation of stem cells in the adult organism.
Studies in adult primates demonstrated the presence of oogonia in mitosis as well as oocytes at successive stages of meiosis, leading to the conclusion that postnatal oogenesis takes place. Mitotic cells were not specifically stained for oocyte markers, so identification was limited to histological analysis of haematoxylin-stained sections.
While the cats in the above video look as if they are kneading biscuits, they are actually displaying a common feline behavior called kneading. Lots of cats do it, and some owners love it while ...
Lampbrush chromosomes produce a large number of mRNAs and non-coding RNAs, which are synthesized on the lateral loops. These transcripts are used during oogenesis and at the early stages of embryogenesis. Each lateral loop contains one or several transcription units with polarized RNP-matrix coating the DNA axis of the loop. [5] [6] [7]