Solution: The two homologous chromosomes that have been duplicated join, produce a bivalent. Tetrad is another name for it, and it is created mostly during the pachytene stage of meiosis. It is made up of two homologous chromosomes, each containing two sister chromatids (for a total of four chromatids) and one centromere (total of 2 centromeres). Recombination occurs through the production of chiasmata. Hence, the correct answer is (c).
A bivalent of meiosis-I consists of
a. Two chromatids and one centromere
b. Two chromatids and two centromere
c. Four chromatids and two centromere
d. Four chromatids and four centromere
a. Two chromatids and one centromere
b. Two chromatids and two centromere
c. Four chromatids and two centromere
d. Four chromatids and four centromere
A bivalent of meiosis-I consists of
a. Two chromatids and one centromere
b. Two chromatids and two centromere
c. Four chromatids and two centromere
d. Four chromatids and four centromere
a. Two chromatids and one centromere
b. Two chromatids and two centromere
c. Four chromatids and two centromere
d. Four chromatids and four centromere