#Question id: 32273
#Unit 2. Cellular Organization
#Question id: 28198
#Unit 5. Developmental Biology
Cells of the responding tissue must have both a receptor protein for the inducing factor and the ability to respond to the signal, the ability to respond to a specific inductive signal is called as____
#Question id: 2908
#Unit 2. Cellular Organization
The H3.H4 tetramers and H2A.H2B dimers each interact with a particular region of the DNA within the nucleosome. Which of the following statement is CORRECT regarding the characteristic binding of histones with the DNA?
I. Of the 147 bp of DNA included in the structure, the histone-fold regions of the H2A.H2B dimer interact with the central 60 bp.
II. Histone H3.H4 tetramers occupy a key position in the nucleosome by binding the middle and both ends of the DNA.
III. The amino-terminal region of H4 most proximal to the histone-fold region forms a fourth alpha helix that interacts with the final 13 bp at each end of the bound DNA.
IV. The H3.H4 tetramer associate with approximately 30 bp of DNA on either side of the central 60 bp of DNA bound by H2A.H2B dimer.
V. The two H2A.H2B dimers form the bottom part of the histone octamer located across the disc from the DNA ends.
#Question id: 27921
#Unit 11. Evolution and Behavior
Who hypothesized that different organisms originated separately by spontaneous generation from nonliving matter ?
#Question id: 5841
#Unit 8. Inheritance Biology
How are the BRCA proteins and their genes implicated in breast cancer?