Question

Arrange the following events of meiosis in the correct sequence -
A. Terminalisation of chiasmata
B. Crossing over
C. Synapsis
D. Disjunction of chromosomes
E. Dissolution of synaptonemal complex
The correct sequence is-

• A. $A\to B\to C\to D\to E$
• B. $E\to D\to C\to B\to A$
• C. $C\to B\to D\to E\to A$
• D. $C\to B\to E\to A\to D$

Answer 1

The correct option is D $C\to B\to E\to A\to D$

Following is the sequential order followed in meiosis-
Synapsis-pairing of two homologous chromosomes.
Crossing over-also called chromosomal crossover that results in exchange of genetic material between homologous chromosomes during sexual reproduction.
Dissolution of synaptonemal complex occurs during Diplotene stage of meiosis.
The displacement of Chiasmata, that means terminalisation takes place in diakinesis stage.
Disjunction of chromosome occurs in anaphase of meiosis.
So, the correct sequence is C-B-E-A-D.
Therefore, the answer is option 'd'.