Most traits in sexually reproducing organisms are the result of what type of gene?

What best explains the inability for life to exist in earth early atmosphere

Natural resources are any materials that humans obtain from the earth to meet our wants and needs.

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals