Biology
Grade-9
Easy
Question
What is the primary cause of genetic variation during meiosis?
- Chromosomes lining up
- Crossing over of chromosomes
- Separation of chromosomes
- Chromosomes pulling apart
Hint:
Crossing over of chromosomes
The correct answer is: Crossing over of chromosomes
The three main sources of genetic variation arising from sexual reproduction are crossing over; random assortment of chromosome and random fusion of gametes from different parents.
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