One major difference between mitosis and meiosis that can contribute significantly to genetic diversity in offspring is referred to as "crossing over" or "chromosomal crossover." Crossing over occurs only in meiosis. Homologous chromosomes can physically "swap" chromosomal segments, thereby ensuring that...
Prophase I is, in my opinion, the coolest phase of meiosis. The 46 chromosomes in your body’s diploid cells are organized into 23 homologous pairs. One chromosome in each of these pairs is from your mom, and the other one is from your dad. Prophase in mitosis and prophase I of meiosi...
Meiosis is divided into meiosis I and meiosis II. Like mitosis, the onset of meiosis I is preceded by all 46 of a cell's chromosomes replicating. In meiosis, however, after the nuclear membrane is dissolved in prophase, the homologous chromosomes pair off, side by side, with the homolog d...
but let’s get a little more detailed than that. During mitosis,onecell dividesonetime, and the cell that’s being divided is always called the “parent cell.” When the process of dividing the parent cell is complete, the result is two “daughter cells.” These cells are called ...
1. Mitosis is a process of cell division where one cell divides into two. What are TWO reasons cells need to be able to perform mitosis? 2. What is the main purpose of meiosis and what are the key events for a cell to achieve it? 3. How does the amount ...
I agree with mdt. Science still has a long way to go. Anyway, in my opinion, controlling the outcome seems not really possible if it is referring to biological processes. Bymdt— On May 31, 2008 As mentioned in the last paragraph, the ability to control the outcome is far from perfect...
What part of the cell divides during mitosis? What do we know about the cell that begins meiosis? Which type of mutation occurs in reproductive cells and can be passed to offspring? What do chromosomes control? What reproductive isolation leads to infertile offspring? What is the difference betw...
Cells divide through two processes: mitosis and meiosis. In both processes, diploid cells (containing two sets of chromosomes, or 46 chromosomes) divide. In mitosis, the diploid “parent” cell divides and produces two diploid “daughter” cells. However, in meiosis, the parent cell produces fou...
Compare and contrast meiosis and mitosis What are some major event that occur during the interphase? Cytokinesis usually occurs: a) during interphase. b) after telophase. c) during anaphase. d) at the same time as telophase. Describe what happens to the Nuclear Envelope in the following stage...
Meiosis produces haploid cells with new allele combinations different from those of either parent thanks in large part to the events that occur during meiosis I.We’ve provided a series of links below to articles that provide an in-depth view of the steps involved in mitosis and meiosis. We ...