Gibberellin can induce auxin biosynthesis and that auxin can induce gibberellin biosynthesis. If the pea plants are decapitated, leading to  a cessation in stem elongation, which one of the following prediction about this experiment is correct?

#Question id: 872

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statements is not true about HSP 70 family.

A. They have a molecular weight near 70,000 and are abundant in cells stressed by elevated temperature.

B. Bind to regions of unfolded polypeptides that are rich in hydrophilic residues

C. Hsp70 proteins not  block the folding of certain proteins that must remain unfolded untill they have been translocated across a membrane.

D.) It releases polypeptides in a cycle that uses energy from ATP hydrolysis.

#Question id: 142

#Unit 1. Molecules and their Interaction Relevant to Biology

Histidine has pKa values of 1.8, 6.0 (R-group) and 9.3 . At pH 8.0, the net charge on histidine is

#Question id: 2640

#Unit 2. Cellular Organization

Which of these properties do not agree with trp operon attenuator?

#Question id: 33436

#Unit 1. Molecules and their Interaction Relevant to Biology

#Question id: 11746

#Unit 6. System Physiology – Plant

Sieve element sap is rich in sugars and other organic molecules, These molecules represent an energy investment for the plant. How their loss be prevented when sieve elements are damaged?