Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.
What is the spindle responsible for?
The mitotic spindle is made of long proteins called microtubules that begin forming at opposite ends of the cell. The spindle will be responsible for separating the sister chromatids into two cells.
What happens if spindle fibers don’t form?
For herbicides with this mode of action, the prophase sequence is normal, but without the spindle apparatus, chromosomes are unable to move into the metaphase configuration and daughter chromosomes cannot migrate to their respective poles.
What do you mean by spindle?
1 : a slender round rod or stick with narrowed ends by which thread is twisted in spinning and on which it is wound. 2 : something (as an axle or shaft) which has a slender round shape and on which something turns. spindle. noun.
What is the point of cell division?
Cell division is an essential process for organism creation, growth, and repair. There are two main types of cell division in humans. Cells can divide to make reproductive cells, sperm and eggs.
What is the role of the Centriole in cell division quizlet?
The main function of the centriole is to help with cell division in animal cells. The centrioles help in the formation of the spindle fibers that separate the chromosomes during cell division (mitosis).
What are the two main stages of cell division?
In eukaryotic cells, or cells with a nucleus, the stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.