Question

which method of genetic recombination is illustrated in the diagram?
crossing over
independent assortment
fertilization
tetrad formation

Explanation:

• Crossing over: Occurs during meiosis when homologous chromosomes exchange genetic material. The diagram shows chromosomes with exchanged segments (indicated by color changes and allele positions), which is characteristic of crossing over.
• Independent assortment: Refers to the random alignment of homologous chromosome pairs during metaphase I of meiosis. This diagram does not illustrate random alignment of chromosome pairs.
• Fertilization: Involves the union of sperm and egg. The diagram does not show gamete fusion.
• Tetrad formation: Is the pairing of homologous chromosomes (forming a tetrad) during prophase I. While tetrads are present in meiosis, the key event shown is the exchange of genetic material (crossing over), not just tetrad formation.

Answer:

crossing over