Ineed some biology because i'm not smart and very confused

Johannesburg kepler, an apprentice of brahe, believed in the heliocentric universe but rejected past astronomers belief in

Apair of fruit flies reproduces and has 1,000 offspring. all 1,000 of the offspring have the alleles gg. what is the most likely combination of alleles for each parent

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer