Which one is correct about bivalent ? (1) Bivalent are tetrads. (2) A bivalent means 4 chromatids and 2 centromere. (3) One bivalent consists of 2 homologous chromosomes each and sister chromatids. (4) Bivalents formation occurs in zygotene.
Choose Your Option
A. 1, 2, 3 and 4
B. Only 3
C. 3 and 4
D. Only 4