Independent assortment explains . View Available Hint(s) Independent assortment explains . why meiosis in a cell of genotype Aa yields A gametes and a gametes in roughly equal numbers why meiosis in a cell of genotype AaBb cannot yield Ab gametes why meiosis in a cell of genotype Aa yields A gametes and a gametes, but no Aa gametes why a collection of meiotic products that includes gametes of genotype Ab will also include gametes of genotype AB in roughly the same proportion

Explanation:

1. The law of Independent assortment say that the formation of combinations of chromosomes in meiosis is  random, which says that each pair of homologous chromosomes are  independently separated.

2. No pair of chromosome is dependent on another pair of chromosomes.

3. In independent assortment, the cell containing allele AaBb produce equal amount of gametes AB, Ab, aB, and ab.

it would lead to upper respiratory infections and pneumonia.

substitution is the answer in this case