Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
somatic cells
|
nonreproductive cells
|
|
|
meiosis I
|
prophase I-chromosomes pair; synapsis and crossing over occur
metaphase I- paired homologous chromosomes align on metaphase plate anaphase, telephase I-chromosomes seperate;sister chromatids remain together |
|
|
Meiosis II
|
Prophase II-new spindle forms in each cell and nuclear membran breaks down
Metaphase II -spindle apparatas is in place. Chromosomes consisting of sister chromatids joined at centromere align along the metaphase plate. Kinetochore microtubules from opposite poles attach to opposite sides of same centromere Anaphase II-microtubles shorten and centromeres split. Sister chromatids are pulled to opposite poles Telophase II-nuclear membranes reform. around four different clusters of chromosomes. Four haploid cells result. |
|
|
Independant assortment
|
resutls from meiosis I
|
|
|
parthenogenesis
|
common form of reporoduction in arthropods. fertilized eggs develop into females. Unfertilized form into males.
|
