Question

which process results in greater genetic diversity in offspring?
recombination of dna during meiosis
crossing - over during mitosis
genetic linkage
rearrangement of chromosomes in germ cells

Explanation:

To determine which process increases genetic diversity in offspring, we analyze each option:

• Recombination of DNA during meiosis: Meiosis involves processes like crossing - over (a type of DNA recombination between homologous chromosomes) and independent assortment. These processes shuffle genetic material, leading to new combinations of alleles in gametes. When gametes fuse during fertilization, offspring inherit a unique combination of genes, thus increasing genetic diversity.
• Genetic linkage: This refers to genes being located close together on a chromosome and being inherited together. It reduces the shuffling of genetic material and does not increase genetic diversity.
• Crossing - over during mitosis: Mitosis is a process of cell division for growth, repair, and asexual reproduction. Crossing - over does not occur during mitosis (it occurs during meiosis I), so this option is incorrect.
• Rearrangement of chromosomes in germ cells: While some chromosomal rearrangements can occur, the primary mechanism for increasing genetic diversity in offspring is the recombination of DNA during meiosis (including crossing - over and independent assortment), which is a more direct and well - known source of genetic variation.

Answer:

The correct option is "recombination of DNA during meiosis" (the option with the radio button selected in the image, representing the process that results in greater genetic diversity in offspring).