Question
What is the significance of crossing over?
Cell division
Mutation
Genetic variation
All of the above
Cell division
Mutation
Genetic variation
All of the above
Hint:
Crossing over is the reason why the offsprings aren't clones of their parents.
The correct answer is: Genetic variation
- Recombination occurs when two DNA molecules exchange pieces of genetic material with each other. This process, also called mating/crossing over, creates gametes that contain new combinations of genes.
- This helps maximize the genetic diversity of the offspring resulting from the eventual combining of the two gametes during sexual reproduction.
- Genetic diversity occurs because certain physical traits, such as eye color, vary. This variability is the result of different DNA sequences encoding the same physical property. These sequences are commonly called alleles.
Related Questions to study
____________ type of cell division takes place in gametes.
____________ type of cell division takes place in gametes.
After which phase in the cell cycle and DNA replication, meiosis begins?
After which phase in the cell cycle and DNA replication, meiosis begins?
Sexually reproducing organisms produce gametes by the process of?
Sexually reproducing organisms produce gametes by the process of?
Meiosis is characterized by
Meiosis is characterized by
Which of the following does not result in variations among siblings?
Which of the following does not result in variations among siblings?
Identify the wrong statement about meiosis
Identify the wrong statement about meiosis
A diploid cell with a diploid number of 24 chromosomes undergoes meiosis. How many chromosomes are present in each daughter cell after division?
A diploid cell with a diploid number of 24 chromosomes undergoes meiosis. How many chromosomes are present in each daughter cell after division?
What type of cell division occurs in cells of testes and ovaries?
What type of cell division occurs in cells of testes and ovaries?
Meiosis results in _____
Meiosis results in _____
Meiosis I is reductional division, and meiosis II is equational division because of
Meiosis I is reductional division, and meiosis II is equational division because of
