1.(Biology) a type of cell division in which a nucleus divides into four daughter nuclei, each containing half the chromosome number of the parent nucleus: occurs in all sexually reproducing organisms in which haploid gametes or spores are produced. ComparemitosisSee alsoprophase2 ...
During prophase I of meiosis I, a process called recombination can occur. This process is used to create variation and is absent in the process of mitosis. The process of meiosis is something that only occurs in organisms that reproduce sexually. Mitosis occurs in all types of organisms.Answe...
Consisting of a pair of homologous, synapsed chromosomes, as occurs during meiosis; double. 二价染色体的由一对同源,联会染色体组成的, 如在''.'成熟'.'''.'分裂'. ''时出现的; 双的. 期刊摘选 Meiosis, which occurs only in the formation of gametes, is a specialized form of cell division. ...
Depending on the organism, there may or may not be a true telophase, or a time in which nuclei reform. In most organisms, the first cell division occurs after the completion of anaphase I. Following the completion of the first meiotic division, the chromosomes recondense and align themselves...
The cell division occurs in two forms, namely mitosis, which occurs in somatic cells to increase the mass and size of an individual, while meiosis occurs in sex cells to form gametes.Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this ...
It refers to a type of nuclear division that occurs at some stage in the life cycle of sexually reproducing organisms. The number of chromosomes is halved by a specific mechanism to prevent doubling i 年份: 2003 收藏 引用 批量引用 报错 分享 ...
As tetrads form,crossing-overoccurs, where chromatids from opposite chromosomes cross over and touch one another. The sections that cross will exchangeallelesbetween them. FAQ What is meiosis and mitosis? Meiosis and mitosis are both cell division processes. During mitosis, one body cell divides ...
Meiosis is a specialized form of cellular division that occurs in all sexually reproducing organisms. The goal of meiosis is to halve the genomic content of the parent cell, which contains two copies of each chromosome (i.e., diploid), so that the daughter cells, or gametes, contain only ...
Meiosisoccurs in eukaryotic organisms thatreproduce sexually. This includesplantsandanimals. Meiosis is a two-part cell division process that producessex cellswith one half the number ofchromosomesas the parent cell. Interphase Ed Reschke/Getty Images There are two stages or phases of meiosis: meiosi...
Organisms grow and reproduce through cell division. In eukaryoticcells, the production of new cells occurs as a result ofmitosisandmeiosis. These two nuclear division processes are similar but distinct. Both processes involve the division of adiploid cell, or a cell containing two sets ofchromosomes...