Crossing over is the process in whichMultiple choice question.homologous chromosomes align randomly along the metaphase plate.sister chromatids are separated to opposite poles of the cell.sister chromatids align singly along the metaphase plate.homologous chromosomes physically exchange pieces.

Which of the following processes occurs when homologous chromosomes cross over?Group of answer choicesCorresponding segments of sister chromatids are exchanged.Maternal alleles are “corrected” to be like paternal alleles and vice versa.Corresponding segments of nonsister chromatids are exchanged.Two sister chromatids exchange identical pieces of DNA.Two sister chromatids get tangled, resulting in one re-sequencing its DNA.Next

What is crossing over?Group of answer choicesthe exchange of homologous portions of sister chromatidsalso referred to as the “independent assortment of chromosomes”a direct consequence of the separation of sister chromatidsthe movement of genetic material from one chromosome to a nonhomologous chromosomemaking an RNA copy of a DNA strandthe exchange of homologous portions of nonsister chromatidsNext

Crossing over occurs between homologous chromosomes.Group of answer choicesmeiosis onlyneither mitosis nor meiosismitosis onlyboth mitosis and meiosisNext