Meiosis Flashcards
Cell division
Special type of cell division necessary for sexual reproduction.
Meiosis
Two divisions of Meiosis
Reduction Division and Equational Division
Reduces the number of genomes from diploid and haploid. Important in human life cycle.
Meiosis
Used only for production of sperms and cells
Meiosis
Cell division that has 1 division
Mitosis
Cell division that has 2 division
Meiosis
Cell division that has 2 daughter cells
Mitosis
Cell division that has 4 daughter cells
Meiosis
Daughter cells genetically identical
Mitosis
Daughter cells genetically different
Meiosis
Chromosome number of daughter cells same as parent cell (2n)
Mitosis
Chromosome number of daughter cells half of parent cell (1n)
Meiosis
Somatic Cells
Mitosis
Germline Cells
Meiosis
Occurs throughout life
Mitosis
In humans, complete the sexual maturity.
Meiosis
Used for growth, repair and asexual pre-production.
Mitosis
Used for sexual reproduction, producing new gene combination.
Meiosis
Synapsis and crossing over.
Early Prophase I
Chromosome condense and become visible.
Nuclear envelope fragments
Spindle fibers attached to chromosomes.
Late Prophase I
Paired homologous chromosomes align along equator of the cell.
Metaphase I
Homologous chromosomes separate to opposite poles of the cell.
Anaphase I
Nuclear envelope partially assemble around chromosomes.
Spindle disappears
Cytokinesis divides into two.
Telophase I
Spindle forms and fibers attached to both chromosomes.
Prophase II
Chromosomes align along equator of the cell.
Metaphase II
Sister chromatids separate to opposite poles of the cell.
Anaphase II
Nuclear envelopes assemble around two daughter cells.
Chromosome decondense
Spindle disappears
Cytokinesis divides cells
Telophase II
The fate of a gene in one chromosome is not influenced by a gene on a different chromosomes.
Independent Assortment
The exchange of genetic material between homologous chromosomes that results in recombinant chromosomes.
Occurs in prophase I.
Chromosomal Cross Over
