Cell Cycle and Cell Division Question 20
20. The complex formed by a pair of synapsed homologous chromosomes is called
[NEET 2013]
(a) Kinetochore
(b) Bivalent
(c) Axoneme
(d) Equatorial plate
Show Answer
Answer : b
Hints & Solutions
(b) During zygotene, second stage of meiosis I, homologous chromosomes start pairing together forming a complex structure called synaptonemal complex. The complex formed by a pair of synapsed homologous chromosome is called a bivalent or a tetrad. Crossing over occurs between non sister chromatids of bivalent in the next stage.
