In yeast, there are three gene products required to synthesize the amino acid lysine. You cross two haploid lysine auxotrophs to form a diploid. The diploid fails to grow on plates lacking lysine. Which of the following can you definitively conclude?

O The haploid strains have identical mutations in different genes.
The haploid strains have mutations in different genes
The hapoid erains mblentation group encoding the first enzyme in biosynthetic pathway.
The haploid strains have identical mutations in the same genes
O The haploid strains have mutations in the same gene.

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?

How and why organisms are hierarchically classifies

Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.