NEETBotanyCell Cycle and Cell Division
What is the complex formed by a pair of synapsed homologous chromosomes called?
Options
- ASynaptonemal complex
- BBivalent
- CTetrad
- DChromosome synapsis
Correct answer
B. Bivalent
Step-by-step solution
During this stage chromosomes start pairing together and this process of association is called synapsis. Such paired chromosomes are called homologous chromosomes. Electron micrographs of this stage indicate that chromosome synapsis is accompanied by the formation of complex structure called synaptonemal complex. The complex formed by a pair of synapsed homologous chromosomes is called a bivalent or a tetrad. However, these are more clearly visible at the next stage. However, these are more clearly visible at the n