electric slide
Having ONE set of chromosomes
Haploid
how many chromosomes are in somatic cells
46
chromosomes return to chromatin, nuclear membranes form, cleavage furrow begins
telophase
phase before mitosis, growth of cell and preparation for division
interphase
what are body cells called
somatic cells
cell division producing gametes
meiosis
area connecting sister chromatids
centromere
DNA replicates
S "synthesis"
how much time is spent in interphase
90%
what are reproductive cells called (egg & sperm)
gametes
How many cells are produced in meiosis
4
each of the 23 pairs of human chromosomes
homologous pair
organelles replicate in preparation for division
G2
how much time is spent in mitosis
10%
microtubules extending from the centrioles and guide chromosome movement
spindle fibers
fertilized egg
zygote
replicated forms of a chromosome joined together by the centromere and eventually seperated
sister chromatids
Sister chromatids separate into individual chromosomes and are moved apart
Anaphase
happens after mitosis is complete
cytokineses
how many phases are there in mitosis? name them in order.
Prophase, Metaphase, Anaphase, Telophase
how many chromosomes are in gametes
23
splitting of the nucleus
mitosis
chromatin condenses into chromosome, nuclear envelope disappears, spindle fibers start to form
prophase
splitting of the cytoplasm
cytokinesis
How many phases are there in meiosis? Name them in order.
8. prophase 1, metaphase 1, anaphase 1, telophase 1, prophase 2, metaphase 2, anaphase 2, telophase 2