Prophase is a stage in cell division, particularly in meiosis I, where proper orientation and segregation of homologous chromosomes occur through pairing, synapsis, and recombination. It is longer in meiosis compared to mitosis, lasting many days in males and many years in females. ...
Which enzyme is responsible for recombination process in meiosis-I ? Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar Board...
美['proʊˌfeɪz] 英['prəʊfeɪz] n.【动】(有丝分裂)前期 网络减数分裂的初期;早期;减数分裂前期 英汉 英英 网络释义 n. 1. 【动】(有丝分裂)前期 释义: 全部,前期,减数分裂的初期,早期,减数分裂前期
Stronghill PE, Hasenkampf CA (2007) Analysis of substage associations in prophase I of meiosis in floral buds of wild-type Arabidopsis thaliana (Brassicaceae). Am J Bot 94:2063–2067Stronghill PE, and Hasenkampf CA (2007) Analysis of substage associations in prophase I of meiosis in floral...
1.The first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell. 2.The first stage of meiosis, constituted by a series of events that include the thickening and coiling of ...
<p>To answer the question regarding the various stages of meiotic prophase I and the chromosomal events that occur during each stage, we can break it down into the following steps:</p><p>1. <strong>Leptotene Stage</strong>: - <strong>Description</stro
Exactly how homology is recognized is one of the lingering mysteries of meiosis. The final intimate juxtaposition of homologs, called synapsis, marks the beginning of the pachytene substage of meiotic prophase I (Fig. 3.2). It is achieved with the aid of a proteinaceous zipper-like structure ...
:the first stage of the first division of meiosis in which chromosomes become visible and pair with homologous chromosomes to undergo synapsis Medical Definition prophase noun pro·phase-ˌfāz 1 :the initial stage of mitosis and of the mitotic division of meiosis characterized by the condensat...
Meiosisisaspecializedtypeofcelldivisionleadingto theproductionofgametes.DuringmeioticprophaseI, homologouschromosomesinteractwitheachotherand formbivalents(pairsofhomologouschromosomes). Threemajormeioticprocesses–chromosomepairing, synapsisandrecombination–areinvolvedinthe ...
1. the first stage of meiosis 2. the first stage of mitosis 行业词典 人体组织学 [分裂]前期 医学 前期:细胞复制的第一期。有丝分裂时,在此阶段由于DNA极度盘绕,染色体变得可见,细胞核开始失去原来的样子,中心粒开始移动。减数分裂时第一次分裂的前期包括五个阶段:细线期、偶线期、粗线期、双线期和丝球...