Meiosis Flashcards

DNA condenses, chromosomes become visible.

Homologous chromosomes pair up and form tetrads; crossing-over occurs at points called 'chiasmata.'

Homologous chromosomes (tetrads) line up along the equator.

<p>Spindle fibers separate each of the homologous chromosomes to opposite sides of the cell.</p> Signup and view all the answers

<p>Cytoplasm divides, two smaller daughter cells are formed.</p> Signup and view all the answers

<p>Chromosomes condense and become visible; nuclear membrane dissolves and spindle fibers re-appear.</p> Signup and view all the answers

<p>Chromosomes line up along the equator; they are not in homologous pairs.</p> Signup and view all the answers

<p>Chromatids of each chromosome separate and move to each end of the cell.</p> Signup and view all the answers

<p>Nuclear membrane reforms, cytoplasm divides; in total 4 haploid daughter cells are formed.</p> Signup and view all the answers

<p>Reduction division.</p> Signup and view all the answers

<p>Splits the two chromatids on each chromosome so that each daughter cell has one chromatid per chromosome.</p> Signup and view all the answers

<p>The division of the nucleus of a cell into two daughter nuclei.</p> Signup and view all the answers

<p>The phase of the cell cycle where growth, synthesis of new DNA, and organelles takes place.</p> Signup and view all the answers

<p>Cell is smallest in size and grows during this phase. After this phase, there is a checkpoint to see if the cell is ready to move on to the next step.</p> Signup and view all the answers

<p>Each of the 46 chromosomes (DNA) is duplicated/synthesized.</p> Signup and view all the answers

<p>Last growth phase of the cell cycle. After this phase, there is a checkpoint to see if the cell is ready to move on to the next step.</p> Signup and view all the answers

<p>The phase where the chromosomes become visible as a pair of sister chromatids joined at the centromere.</p> Signup and view all the answers

<p>The phase where the chromosomes line up at the metaphase plate and attach to the microtubules at the kinetochore.</p> Signup and view all the answers

<p>The stage when the sister chromatids are pulled apart and towards opposite poles of the nuclear spindle.</p> Signup and view all the answers

<p>Final phase where chromatids reach opposite poles and are now called chromosomes again; the nuclear membrane reforms.</p> Signup and view all the answers

<p>The division of the cell cytoplasm to form two new cells.</p> Signup and view all the answers

<p>Consists of 2 centrioles arranged at right angles of one another; centrosomes are at each pole and help the cell divide.</p> Signup and view all the answers

<p>A structure consisting of microtubules found in eukaryotic cells during cell division.</p> Signup and view all the answers

<p>A linear DNA molecule wrapped around histone proteins found in the nucleus.</p> Signup and view all the answers

<p>A replicated chromosome appears as two strands in early stages of cell division; each strand is a chromatid.</p> Signup and view all the answers

<p>The region of a chromosome where two sister chromatids are joined together and where the spindle fiber attaches during cell division.</p> Signup and view all the answers

<p>Proteins that control the progress of the cell cycle.</p> Signup and view all the answers

<p>Cancerous tumor.</p> Signup and view all the answers

<p>The spread of cancer cells beyond their original site.</p> Signup and view all the answers

<p>A chemical or physical agent that interacts with DNA and causes a mutation.</p> Signup and view all the answers

<p>Cancer-causing genes that are formed due to mutations.</p> Signup and view all the answers

<p>The structure that attaches the spindle fibers to the centromere.</p> Signup and view all the answers

<p>The random assortment of chromosomes and combinations of chromosomes in meiosis.</p> Signup and view all the answers