Test 3

series of events that takes place in a cell from one division to the next

the process in which the nucleus divides and forms 2 identical nuclei

what phase of mitosis are the chromosomes visible, nuclear membrane and nucleolus disappear, centrioles move toward poles of the cell, spindles stretch across the cell from centriole to centriole

what phase of mitosis do double stranded cromosomes line up across the midline, the centromeres attach to a spindle fiber

centromeres divide, 2 strands of each chromosome separate and head toward opposite ends of the cell

the centrioles and spindles start to disappear, a new nuclear membrane appear aound each mass of chromosomes and a new nucleolus appear in the nucleus

a new organsim produces from only one parent

process of reduction division by which the chromosome number is reduced by half

cell with single set of chromosomes (human egg or sperm)

term for sex cells (egg or sperm)

visual display of 23 homologous pairs of chromosomes

fertilized egg after union of gametes

matching pair of chromosomes; one from each parent

exchange of genes between two non-sister chromatids during prophase 1

homologous chromosomes synapse; from tetrads; crossing over occurs

23rd pair of chromosomes; determine sex: XX; XY

homologous chromosomes alight opposite; spindles attach to only one side

homologous chromosomes separate; called reduction division

sister chromatids align in middle; spindle fibers to both sides of the centromere

sister chromatids separate to opposite poles

shuffling of homologous chromosomes at metaphase 1

contains full chromosome complement

produced during oogenesis

pairs of homologous chromosomes joined together