Answer:
D) homologous pairs of chromosomes form tetrads
Explanation:
During prophase I, the homologous chromosomes condense and become visible as the x shape we know, pair up to form a tetrad, and exchange genetic material by crossing over.
It's a fundamental law of how the universe organized.
Answer:
Overreacts to an antigen.
Explanation:
Thats what an allergy is if you think about it