• Region where spindle fibre binds to the chromosomes
• A specialized constricted region where two sisters chromatids are joined after replication
Centromere
• _________ is one of the two identical halves of a duplicated chromosome
chromatids
• When two chromatids joined together and make up one chromosome , they are called ______ chromatids
sister chromatids
• A pair of chromosomes of the same length, same centromere position and staining pattern
• Carry genes controlling same inherited characters
Homologous chromosomes
• Pairing up of homologous chromosomes
•in Prophase I
•that results in a structure called bivalent
Synapsis
• A pair of homologous chromosomes that line up beside each other
Bivalent
• A pair of homologous chromosomes made up of four chromatids
Tetrad
•The site where crossing over occur
Chiasma
•An exchange of genetic material between non- sister chromatids of homologous chromosome
• in Prophase I
•results in genetic variation
Crossing over
A pair of homologous chromosomes
Two pairs of homologous chromosomes
