Question

the diagram shows the process of crossing over.
which claim about crossing over in chromosomes is best supported by the diagram?
crossing over genetic diversity

1. increases
2. decreases
3. through mutation
4. by creating new combination of genes
5. through deletion
6. by inserting nucleotides into gene sequences

Explanation:

Crossing - over is a process in meiosis where homologous chromosomes exchange genetic material. This exchange leads to new combinations of genes on the chromosomes. Mutation (option 1) involves changes in the DNA sequence (like insertion, deletion, etc.), which is not what crossing - over is about. Inserting nucleotides (option 4) and deletion (option 3) are types of mutations. Crossing - over specifically creates new combinations of pre - existing genes, not new genes themselves (it's a rearrangement, not a creation of new genetic material from scratch in the sense of mutation).

Answer:

1. By creating new combination of genes.