Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 35794
TLS Online TPP Program

#Question id: 23866

Which of the following is true of embryonic stem cells but not of adult stem cells?

#Unit 13. Methods in Biology
  1. They can differentiate into many cell types.
  2. They make up the majority of cells of the tissue from which they are derived.
  3. They can continue to replicate for an indefinite period.
  4. They can provide enormous amounts of information about the process of gene regulation.
More Questions
TLS Online TPP Program

#Question id: 4884

#Unit 8. Inheritance Biology

True breeding brown dogs with genotype aabb were cross to true breeding white dogs with genotype AABB. All F1 offspring having white phenotype were allowed to intercross to produce F2 progeny as following number –

A- - - 118 white,

aa B- 32 black

aa bb 10 brown

A Male Dog with AaBb genotype was cross with female dog with aabb genotype. What is probability of Black phenotype among their offspring if A gene link B gene at 10 map unit at cis configuration?
TLS Online TPP Program

#Question id: 26562

#Unit 3. Fundamental Processes

Match the following
TLS Online TPP Program

#Question id: 1528

#Unit 4. Cell Communication and Cell Signaling

Mutation of p53 is described as a dominant-negative mutation. Which of the following statement is correct regarding to the mechanism by which this mutation causes the dominant-negative phenotype?
TLS Online TPP Program

#Question id: 33245

#Unit 1. Molecules and their Interaction Relevant to Biology

   

Reaction catalyzed by proline racemase from Clostridium sticklandii is thought to occur via a planar transition state as shown above. The compound can affect reaction significantly as 
TLS Online TPP Program

#Question id: 12444

#Unit 10. Ecological Principles

The component(s) of species diversity is/are