wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The following events occur during the process of meiosis. Arrange the following events of meiosis in the correct sequence.
I. Terminalization of chaismata
II. Crossing over
III. Synapsis
IV. Disjunction of chromosomes

A
II, III, IV, I
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
III, II, I, IV
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
IV, I, II, III
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
I, II, III, IV
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B III, II, I, IV
The correct sequence of the events in meiosis is:
III. Synapsis- Synapsis is the pairing of two homologous chromosomes that occurs during meiosis I. It allows pairing-up of homologous pairs prior to their segregation, and chromosomal crossover. It occurs in the zygotene stage.
II. Crossing over- Crossing over is the exchange of chromosome segments between non-sister chromatids of homologous pairs. Crossing over occurs during the pachytene stage.
I. Terminalization- Terminalization of chiasmata occurs in the diakinesis stage of meiosis I. It is the disappearance of chiasmata as it slides towards the tips of the chromosomes due to tight condensation.
IV. Disjunction of chromosomes- The process of breakdown of homologous chromosomes is called disjunction. This process occurs in anaphase I.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Delhi, the Seat of Power
HISTORY
Watch in App
Join BYJU'S Learning Program
CrossIcon