Flowering in Arabidopsis appears to require
a. production in leaves of CO protein and FT protein.
b. movement of CO protein from leaves to the shoot apex.
c. expression of CO protein in the shoot apex.
d. movement of FT mRNA from leaves to the shoot apex.
e. movement of FT protein from leaves to the shoot apex.
D
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A researcher is studying the rII locus of phage T4. Three rII- strains are obtained: A, B, C, and D. In the first experiment, E. coli strain K(?) is coinfected with two rII- strains simultaneously and the results are recorded. Infection with A and B phage = plaques form Infection with A and C phage = plaques form Infection with B and C phage = no plaques form Infection with B and D phage = no plaques form Infection with C and D phage = no plaques form In a second experiment, coinfections are performed first in E. coli strain B, then the progeny phage are used to infect E. coli strain K(?). Progeny of A and B phage = plaques form Progeny of B and C phage = plaques form Progeny of C and D phage = plaques form Progeny of B and D phage = no plaques from
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