science
Grade-10
Easy
Question
What is the evolutionary purpose of cells that undergo crossing over?
Produce genetically identical gametes
Increase genetic diversity
To prevent mutations
Keep the redundancy of the cell high
Produce genetically identical gametes
Increase genetic diversity
To prevent mutations
Keep the redundancy of the cell high
Hint:
Crossing over alters the genes which is the reason why we don't look exactly the same as our parents.
The correct answer is: Increase genetic diversity
- Crossover is the process that takes place between homologous chromosomes to increase genetic diversity.
- In a crossover, part of one chromosome is exchanged for another. The result is a hybrid chromosome with a unique pattern of genetic material.
- Gametes acquire the ability to be genetically distinct from neighboring gametes after crossover occurs. This allows for genetic diversity that helps cells participate in the survival of the fittest and evolution.
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