#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: 32289
#Unit 2. Cellular Organization
#Question id: 7234
#Unit 5. Developmental Biology
Studies from the sea urchin developmental biology, Eric Davidson’s group envisions a network involving cis regulatory elements (such as promoters and enhancers) in a logic circuit connected to one another by transcription factors. Following statements are given regarding to this network.
A. The network receives its first inputs from transcription factors in the egg cytoplasm.
B. The network self-assembles from the ability of the maternal transcription factors to recognize cis-regulatory elements of particular genes that encode other transcription factors.
C. The new set of transcription factors activate autocrine signaling pathways that activate specific transcription factors in neighboring cells.
D. This network of interconnections among genes that specify cell types known as a gene regulatory network (GRN).
Which of the following statements are correct?
#Question id: 26365
#Unit 2. Cellular Organization
The type I topoisomerase reaction The ends are ligated by a second nucleophilic attack which can be inhibited by
#Question id: 29045
#Unit 10. Ecological Principles
Surface Temperatures Reflect the Difference between__