BIOL 322 PRACTICE SOLUTION TEST 2026 COMPLETE QUESTIONS AND ANSWERS GRADED A+

BIOL 322 PRACTICE SOLUTION TEST 2026
COMPLETE QUESTIONS AND ANSWERS
GRADED A+

●● Dawson.
Answer: Griffith but heat-killed in vitro IIIS


●● Lionel.
Answer: Dawson but soluble filtrate from heat-killed IIIS


●● Avery, MacLeod, and McCarty.
Answer: Treat with proteinase, RNAase, and DNAase for transformation


●● Hershey and Chase.
Answer: Bacteriophages with S-35 and P-32


●● Watson and Crick.
Answer: Structure of B DNA


●● Chargaff.
Answer: Base pairing rules

, ●● Meselson-Stahl.
Answer: E. coli in N-15 and then N-14 for semiconservative replication


●● Taylor-Woods-Hughes.
Answer: Arrested root tip cells in metaphase with colchicine, proved
semiconservative replication in eukaryotes


●● Transfection.
Answer: Only using bacteriophage DNA to infect
spheroplasts/protoplasts


●● Indirect evidence of DNA as the Genetic Material.
Answer: 1. Cells in mitosis have double the DNA, but no real correlation
in protein and RNA.
2. Double DNA in diploid cells as in haploid cells, but no correlation of
protein.
3. Significant mutations occur in organisms exposed to 260 nm light
(DNA absorption), but not 280 nm (protein absorption)


●● RNA Replicase.
Answer: Found in E. coli