Different, not following? Because the sequence of DNA bases is genetic information, it is different because it is heterozygous Aa, and the law of free combination only follows the genes located on different pairs of chromosomes.

Lower? Because aa dies, there are Aa and AA genotypes, so the frequency of A must be decreasing.

100% because of the Ab aB chain as shown in the figure and because of AA? BB is dead, so the genotype of the surviving individuals is only AaBb.

Wing roll: wild type =2: 1 wing roll: wild type: new type =8:3: 1? ? Balanced lethal Drosophila melanogaster is defined as aaBb genotype. Because only flapping genes were detected and only A a, P:Aa and aa F 1 flapping Aa selfed Aa to F2 phenotype and flapping ratio: wild type =2: 1 According to hypothesis 2, the new genes were set to C (recessive mutation) P:Aacc and AACC F1. By the time AA died, there were four (AAbb, AABb and AABB) flapping wings in 16: wild type: new type =8:3: 1.