The letters X and Y represent missing events. Which option correctly replaces the letters X and Y? In X, the homologous chromosomes separate, which increases genetic diversity because of Y.

1. X: anaphase I
Y: independent assortment
2. X: prophase II
Y: crossing-over
3. X: anaphase II
Y: nondisjunction
4. X: prophase I
Y: nondisjunction

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

A

Ithink you should go back and learn in school rather then here asking questions