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#Question id: 19215
#SCPH28 | Zoology
After the initial attachment step, A. tumefaciens produces a network of ________fibrils that bind the bacterium tightly to the plant cell surface.
TLS Online TPP Program
#Question id: 14117
#I Life Science/ Life Sciences Group – I-V
Identify the character based method used for the construction of a phylogenetic tree.
P. Maximum parsimony
Q. Neighbor joining
R. Maximum likelihood
S. Bootstrapping
TLS Online TPP Program
#Question id: 101
#SCPH06 I Botany
You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use?
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#Question id: 15656
#SCPH01 Biochemistry
You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. Explain the two regulatory pathways for Mel1 that can explain the behavior of the MelA– and MelB– mutations. For each regulatory pathways what is a role for the inducer melibiose?
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#Question id: 1409
#SCPH05 I Biotechnology
Which DNA repair system is affected in patients with xeroderma pigmentosum?