What is crossing Over.
Answers
Answer:
Crossing over is a basic concept of genetics and cell biology, often called recombination. It occurs during meiosis. Crossing over is the exchange of chromosome segments between non-sister chromatids during the production of gametes.
Answer:
1) What is crossing over explain?
Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant chromosomes.
2) What is an example of crossing over?
For example, a DNA segment on each chromosome section may code for eye color, although one chromosome may code for brown eyes and the other for blue eyes. Which eye color is expressed will depend on which gene is dominant. Crossing over occurs most often between different alleles coding for the same gene.
3) Where does crossing over occur?
Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids.
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