Quarter 4: Lesson 2: Mitosis and Meiosis Flashcards
(18 cards)
long threadlike structures which result from the replication of DNA
Leptotene
homologous chromosomes start to pair off to similair sizes and shapes
Synapsis
where does synapsis happen
Zygotene
repeated coiling of chromosomes occurs resulting to its contraction and thickening, this makes the homologous pair of chromosomes to be very close to each other
Pachytene
when does crossing over happen
Pachytene
where do two homologous chromosomes begin to repel each other
Diplotene
homologous pair chromosomes are even distributed in the nucleus, then the nucleus breaks down
Diakinesis
where do spindle fibers connect to
Kinetochores
in Metaphase I, what is the alignment of homologous chromosomes called
double alignment
homologous pairs separate and migrate to each pole of the cell
Anaphase I
cytoplasmic division of two haploid (N) daughter cells with chromosomes with two sister chromatids are formed
Telophase I
nuclear membranes reform
Telophase I
chromosomes decondense
Telophase I
chromosomes condense to form metaphase chromosomes
Prophase II
chromosomes line up at the equatorial plane
Metaphase II
spindle fibers shortened and seperated the sister chromatids
Anaphase II
chromatids are now called ___ in Anaphase II
chromosomes
single-stranded chromosomes decondense
Telophase II