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#Question id: 672
#XL - Q Biochemistry
An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?
TLS Online TPP Program
#Question id: 8721
#XL - T Zoology
Based on cladistics, which eukaryotic kingdom is polyphyletic and, therefore, unacceptable?
TLS Online TPP Program
#Question id: 17284
#XL - R Botany
Which kind of plant tissue should lack phragmoplasts?
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#Question id: 3484
#XL - T Zoology
Modern behavioral concepts relate the cost of a behavior to its benefit. Under which relationship might a behavior be performed?
A) cost is greater than the benefit
B) cost is less than the benefit
C) cost is equal to the benefit
TLS Online TPP Program
#Question id: 29556
#XL - R Botany
Which of the following are the water-conducting cells of xylem, have thick walls, and are dead at functional maturity?