How To Use prophase In A Sentence
- Mitotic indices were determined by recording mitotic figures (except prophases) separately in the central and peripheral zones as well as in the rib meristem of the SAM.
- For example, opposite arms may be juxtaposed during prophase of meiosis, providing opportunities for gene-conversion type events.
- Recombination events are often visible as structures known as chiasmata that physically connect two homologous chromosomes during prophase I.
- The events in this stage of the cell cycle leading to cell division are prophase, metaphase, anaphase and telophase.
- • These factors prevent primary oocytes from maturing beyond the prophase of the 1st meiotic division. Recently Uploaded Slideshows
- In wild-type hermaphrodites, germ cells at the dorsoventral flexure exit the pachytene stage of the first meiotic prophase and proceed to diakinesis.
- Meiotic prophase can be further divided into leptotene, zygotene, pachytene, diplotene, and diakinesis stages defined by the state of chromosome pairing and condensation.
- Late prophase I. nuclear envelope dissolves nucleolus completely disappears crossing over of chromatids within bivalents may occur to form a chiasma (pl. chiasmata) spindle is formed at end Conservapedia - Recent changes [en]
- At the beginning of prophase the chromosomes each consist of two highly condensed chromatids attached to each other at a centromere .
- A crossover at the meiotic prophase, as shown in Fig. 2, produces a dicentric chromosome that simulates two normal chromosomes attached together at the ends of their short arms, and a fragement chromosome with telomeres at both ends. Nobel Lecture The Significance of Responses of the Genome to Challenge
