Prophase I

Question 0

Where does Crossing-Over occur and what happens?

Answer 0

Prophase 1 of meiosis , the homologous pair switches with the same section of the other member of the pair causing some mixing of genetic information.

Question 1

Define Tetrad (synapsis).

Answer 1

When the 4 chromosomes combine.

Question 2

Define Crossing-over.

Answer 2

The exchange of genes between homologous chromosomes, producing genetic recombination in the offspring.