Doris Taylor’s research group used detergents to remove all the cells from a cadaveric rat heart, which leaves behind the natural extracellular matrix. An extracellular matrix scaffold can promote the differentiation and rebuilding of a beating heart. The researchers then infused this ECM scaffold with cardiomyocytes. Now these cells differentiated and organized into a functionally contracting “recellularized” heart. Which of the following statement is correct?

TLS Online TPP Program

#Question id: 4314

#Unit 3. Fundamental Processes

A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?

TLS Online TPP Program

#Question id: 12365

#Unit 10. Ecological Principles

The age pyramid of a human population that is rapidly growing due to a high reproductive rate

TLS Online TPP Program

#Question id: 1276

#Unit 4. Cell Communication and Cell Signaling

Which of the following does not belong to the major families of cell surface adhesion molecules?

TLS Online TPP Program

#Question id: 4202

#Unit 3. Fundamental Processes

The E site on the ribosome is the location of

TLS Online TPP Program

#Question id: 9271

#Unit 6. System Physiology – Plant

Chlorophylls a and b are abundant in green plants, and c and d are found in some protists and cyanobacteria. A number of different types of bacteriochlorophyll have been found; which type of chlorophyll is the most widely distributed, shows the distribution of pigments in different types of photosynthetic organisms;