Please help with this genetics problems The intermediates that build up in Serratia mutant X can feed mutant Y to produce red pigment. However, mutant Y cannot feed mutant X to produce red pigment. Which of the following is correct? (Select all that apply) Enzymes X and Y are in parallel biochemical pathways for red pigment production Enzymes X and Y are in the same branch of the pathway for red pigment production Enzyme X is downstream from enzyme Y Enzyme X is upstream from enzyme Y Serratia marescens are, while Saccharomyces cerevisiae are. archaea, mammalian bacteria, algae bacteria, eukaryotes fungi, prokaryotes In our Serratia experiment we plated different mutant strains next to one another. When those mutant strains exhibited complementation (were able to produce prodigiosin), what was being shared between them? (Put another way, what are the strains providing to each another?) Enzymes Intermediates Both enzymes and intermediates Serial dilutions are used because it is an accurate way to determine the number of cells in a highly concentrated solution of cells to accurately increase the concentration of cells to disperse the cells evenly in the tubes before streaking the cells on the sterile plates to lyse the cells so we can streak the cytoplasm on the plates Under what conditions does diploid yeast undergo meiosis to produce haploids? Resource poor Resource rich Yeasts undergo meiosis whenever they want None of the above. Solution 7. Answer: A & D Enzyme X and Y are in parallel biochemical pathways for red pigment production. Enzyme X is upstream from enzyme Y. 8. Answer: C Serratia marescens are bacteria and Saccharomyces cerevisiae are eukaryotes. 9. Answer: C They shared enzymes between them by complementation and able to produce prodigiosin. 10. Answer: A Serial dilution is an accurate way to determine the number of cells in a highly concentrated solution of cells. 11. Answer: A Under resource poor condition, diploid yeast undergo meiosis to produce haploids..

1. Please help with this genetics problems The intermediates that build up in Serratia mutant X can
feed mutant Y to produce red pigment. However, mutant Y cannot feed mutant X to produce red
pigment. Which of the following is correct? (Select all that apply) Enzymes X and Y are in
parallel biochemical pathways for red pigment production Enzymes X and Y are in the same
branch of the pathway for red pigment production Enzyme X is downstream from enzyme Y
Enzyme X is upstream from enzyme Y Serratia marescens are, while Saccharomyces cerevisiae
are. archaea, mammalian bacteria, algae bacteria, eukaryotes fungi, prokaryotes In our
Serratia experiment we plated different mutant strains next to one another. When those mutant
strains exhibited complementation (were able to produce prodigiosin), what was being shared
between them? (Put another way, what are the strains providing to each another?) Enzymes
Intermediates Both enzymes and intermediates Serial dilutions are used because it is an
accurate way to determine the number of cells in a highly concentrated solution of cells to
accurately increase the concentration of cells to disperse the cells evenly in the tubes before
streaking the cells on the sterile plates to lyse the cells so we can streak the cytoplasm on the
plates Under what conditions does diploid yeast undergo meiosis to produce haploids?
Resource poor Resource rich Yeasts undergo meiosis whenever they want None of the above.
Solution
7. Answer: A & D
Enzyme X and Y are in parallel biochemical pathways for red pigment production. Enzyme X is
upstream from enzyme Y.
8. Answer: C
Serratia marescens are bacteria and Saccharomyces cerevisiae are eukaryotes.
9. Answer: C
They shared enzymes between them by complementation and able to produce prodigiosin.
10. Answer: A
Serial dilution is an accurate way to determine the number of cells in a highly concentrated
solution of cells.
11. Answer: A
Under resource poor condition, diploid yeast undergo meiosis to produce haploids.