meiosis

Question 1

describe crossing over

Answer 1

chromatids of homologous chromosomes twist around one another forming a chiasmata.
twisting causes tension
causing equal lengths of chromatids to be exchanged
causing new combination of alleles

Question 2

what is a homologous chromosome

Answer 2

a pair of chromosomes that have the same gene at the same loci

Question 3

describe meiosis