science
Grade-10
Easy
Question
What is the importance of crossover?
New genetic combinations
For meiosis to occur
To clone a chromosomal segment
Mutation
New genetic combinations
For meiosis to occur
To clone a chromosomal segment
Mutation
Hint:
The genes get altered a bit due to crossing over.
The correct answer is: New genetic combinations
- Homologous recombination is an important mechanism for repairing double-strand breaks in DNA.
- A possible result of such repair is the swapping or crossover of DNA between chromosomes. Hybrids are beneficial during meiosis. This is because they not only generate genetic diversity but also facilitate proper chromosomal segregation through the establishment of crossovers.
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