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TLS Online TPP Program

#Question id: 7126

What is the role of stem cells with regard to the function of adult tissues and organs?

#Unit 5. Developmental Biology
  1. Stem cells are undifferentiated cells that divide asymmetrically, giving rise to one daughter that remains a stem cell and one daughter that will differentiate to replace damaged and worn out cells in the adult tissue or organ.
  2. Stem cells are embryonic cells that persist in the adult, and can give rise to all of the cell types in the body.
  3. Stem cells are determined cells that reside in fully differentiated tissues and can, when needed, differentiate to supply new cells for growth of the tissue.
  4. Stem cells are differentiated cells that have yet to express the genes and proteins characteristic of their differentiated state, and do so when needed for repair of tissues and organs.
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TLS Online TPP Program

#Question id: 5746

#Unit 8. Inheritance Biology

A base change resulting in a codon specifying an amino acid which is different than in the wild-type polypeptide
TLS Online TPP Program

#Question id: 15880

#Unit 12. Applied Biology

 Which one types of culture is ideal for the determination of effects of individual nutrients on cell growth and metabolism.
TLS Online TPP Program

#Question id: 4835

#Unit 8. Inheritance Biology

Repulsion and coupling are two faces of
TLS Online TPP Program

#Question id: 5565

#Unit 5. Developmental Biology

Among these choices, the largest cell involved in frog reproduction is ________.
TLS Online TPP Program

#Question id: 16093

#Unit 7. System Physiology – Animal

The thermoregulatory centre is located in: