#Question id: 19219
#Unit 12. Applied Biology
#Question id: 431
#Unit 1. Molecules and their Interaction Relevant to Biology
Which is not generally a molecule used to conserve energy?
#Question id: 16117
#Unit 7. System Physiology – Animal
#Question id: 1382
#Unit 4. Cell Communication and Cell Signaling
Following statements are regarding to cell-cell and cell–extracellular matrix junctions and their adhesion molecules.
A. Adherens junctions and desmosomes are integrin-containing anchoring junctions that bind the membranes of adjacent cells, giving strength and rigidity to the entire tissue.
B. Hemidesmosomes are cadherin-containing anchoring junctions that attach cells to elements of the underlying extracellular matrix.
C. Integrins are a large family of αβ heterodimeric cell-surface proteins that mediate both cell-cell and cell-matrix adhesions and inside-out and outside-in signaling in numerous tissues.
D. Tight junctions block the diffusion of proteins and some lipids in the plane of the plasma membrane, contributing to the polarity of epithelial cells. They also limit and regulate the extracellular (paracellular) flow of water and solutes from one side of the epithelium to the other.
Which of the following statements are incorrect?
#Question id: 5469
#Unit 8. Inheritance Biology
Breeding experiment was performed on pure lines of tomatoes differing in fruit weight. The plants were all grown in a controlled environment chamber providing equal environmental conditions for all individuals as far as humanly possible. The results were as follows:
a) One dominants polygene contribution?
b) What will be frequency of 20 g in F2 CLASSES?
c) Number of polygene loci for this character.