Q. 155.0( 1 Vote )

The important event of meiosis is the crossing over. It occurs during ________ .
A. Leptotene

B. Pachytene

C. Diplotene

D. Zygotene

Answer :

During pachytene process of meiosis crossing over between homologous chromosomes takes place. In this they homologous chromosomes exchanges their segments.

In other steps like Leptotene- condensation of chromosome take place, Diplotene- - terminalization take place and in Zygotene- pairing of homologous chromosomes takes place.


Therefore, correct option is Pachytene.


It can be better understood with the following picture:


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Structure of The EarthStructure of The EarthStructure of The Earth40 mins
Electronic Configuration and ValencyElectronic Configuration and ValencyElectronic Configuration and Valency47 mins
NCERT | The Human EyeNCERT | The Human EyeNCERT | The Human Eye45 mins
Myopia or Short- SightednessMyopia or Short- SightednessMyopia or Short- Sightedness33 mins
To err is humanTo err is humanTo err is human55 mins
Foundation | Human Endocrine SystemFoundation | Human Endocrine SystemFoundation | Human Endocrine System58 mins
Human BrainHuman BrainHuman Brain52 mins
Lets Learn about Human EyeLets Learn about Human EyeLets Learn about Human Eye48 mins
Nutrition in Human BeingsNutrition in Human BeingsNutrition in Human Beings62 mins
NCERT | Human HormonesNCERT | Human HormonesNCERT | Human Hormones30 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses