LAB Flashcards
refer to all body cells except the sex cells
contain diploid
undergo mitosis
somatic cells
refer to the gametes
contain haploid
undergo meiosis
sex cells
the cyclical process of growth and mitosis
cell cycle
consist of interphase and mitosis
cell cycle
the preparatory stage for mitosis consist of G1, S AND G2
interphase
pre-synthesis interphase
G1 PERIOD
gap
synthesis phase
S period
synthesis
post synthesis interphase
G2 PERIOD
somatic cell division
mitosis
produce 2 daughter cell
mitosis
other term for mitosis
duplication division
division of nucleus
of cytoplasm
karyokinesis
cytokinesis
sex cell division
meiosis
produce 4 daughter cells haploid bash
meiosis
also called reduction division
meiosis
occupies the longest duration of meiosis with 5 stages
prophase I
replicated chromosomes
leptotene
replicated chromosomes (leptotene) appear as long slender threads
leptonema
pairing of homologous chromosomes (synapsis)
Zygonema
the pair is referred to as bivalent or tetrad
zygotene
zygonema
chromosomes continue to becoe shorter and thicker(pachytene)
pachynema
a series of exhange of genetic material(crossing over) can occur between spec region ng homologous chromosomes
pachynema
tetrad tends to repel each other
chiasma become distinct
diplotene
diplonema
area of contact between 2 chromatids
chiasma
bivalent migrate close to the nuclear membrane
diakinesis
coiling and contraction of chomosome continue
diakinesis
nucleus disappear and nuclear membrane begins to break down
diakinesis
spindle apparatus begins to form
diakinesis
