What is gene g responsible for in these fruit flies

Mendel used over 28,000 pea plants in his experiment. how does this large sample size make his results more reliable? (i'm not sure about this one)

State the difference between the cold-temperature sensor that has been recently discovered and the one that scientists already knew about.

The higher the proportion of loci that are "fixed" in a population, the lower is that population's a) nucleotide variability.b) average heterozygosity.c) diploidy.d) a and b e) a, b, and c