Crossing over occurs when

sister chromatids are pulled apart at the centromere during anaphase II.
homologous chromosomes join together to form tetrads during prophase I.
chromosomes are grouped together into new nuclei during telophase II.

tetrads of homologous chromosomes randomly line up in metaphase I.

Question

Crossing over occurs when

 sister chromatids are pulled apart at the centromere during anaphase II.
 homologous chromosomes join together to form tetrads during prophase I.
 chromosomes are grouped together into new nuclei during telophase II.
 
 
 tetrads of homologous chromosomes randomly line up in metaphase I.

faithyann · Answer

crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis. At that stage each chromosome has replicated into two strands called sister chromatids.

faithyann · Answer

chromosomes are grouped together into new nuclei during telophase

advert · Answer

hey