question_answer 22)

A bivalent meiosis-I consists of (a) two chromatids,and one centromere              (b) two chromatids and two centromeres (c) four chromatids and two centromeres            (d) four chromatids and four centromeres

Answer:

                               (c) The complex formed by a pair of synapsed homologous chromosome is called bivalent or a tetrad. :lt has two centromeres and four chromatids. Rest of the options are incorrect.