Bio Lab quiz 8 Mitosis and Meiosis

centromere

holds2 chromosomes together

interphase parts

G1,S,G2

what happens in S phase

DNA replication occurs

sister chromatids

2 chromatids attached at the centromere region and identical to one another

what happened during prophase in mitosis

chromatin condenses in nucleus

spindles form

spindle fibers are composed of

microtubules

what is the assembly of microtubuls initiated by

centrosome

centrosome

consists of 2 centrioles made of microtubules

kinetochore

located at centromere of sister chromatids

where spindles attach

metaphase of mitosis

centromere regions of sister chromatids attach to spindle fibers and Lin up on metaphase plate

anaphase of mitosis

sister chromatids split at centromere and move to opposite sides of the cell

daughter chromosomes

the name of the 2 DNA strands formerly held together at centromere

what happens in telophase of mitosis

spindle apparatus disappears

nukes reforms

mitosis makes how many daughter cells

2 identical daughter cells that are diploid

cytokinesis

division of rest of cell

mitosis goes through ? duplication meiosis goes through ? and has how many divisions

1

2

mitosis makes ? identical diploid daughter cells

2

meiosis makes ? unique haploid daughter cells

4

nuclear division consists of

prophase

metaphase

anaphase

telophase

During metaphase homologous chromosomes line up vertically because then

each daughter cell gets a sister chromatid of each

what happens in prophase 1 of meiosis

tetrads form between homologous chromosomes

crossing over occurs