Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 5953
TLS Online TPP Program

#Question id: 7153

What are osteoblasts?

#Unit 5. Developmental Biology
  1. Osteoblasts are the proliferating precursors of the chondrocytes.
  2. Osteoblasts are maturing chondrocytes, capable of secreting the cartilage present in the growth plate.
  3. Osteoblasts are enlarged chondrocytes present in the hypertrophic zone of the growth plate.
  4. Osteoblasts are bone-forming cells that derive from stem cells in the bone marrow, and therefore have no lineage relationship to chondrocytes.
More Questions
TLS Online TPP Program

#Question id: 14695

#Unit 13. Methods in Biology

From a bag containing 4 white and 5 black balls a man draws 3 at random. Then the probability that all 3 are black is
TLS Online TPP Program

#Question id: 2543

#Unit 2. Cellular Organization

Which of the following is the most common pathway taken by a newly synthesized protein that will be secreted by a cell?
TLS Online TPP Program

#Question id: 4069

#Unit 3. Fundamental Processes

Which of the following can be identified using a series of promoter linker scanning mutations?

a. areas of the promoter that are non-essential

b. areas of the promoter that are essential

c. the presence of separate transcriptional control regions

d. spacing constraints on separate transcriptional control regions
TLS Online TPP Program

#Question id: 18710

#Unit 13. Methods in Biology

qPCR  graph is drawn between ∆Rn and PCR cycle In this graph CT represents
 
TLS Online TPP Program

#Question id: 28369

#Unit 5. Developmental Biology

During an experiment bicoid mRNA is added to the posterior side of wild type embryo____