Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 63820
TLS Online TPP Program

#Question id: 447

In glycolysis, fructose 1,6-bisphosphate is converted to two products with a standard free-energy change (DG'°) of 23.8 kJ/mol.  Under what conditions encountered in a normal cell will the free-energy change (DG) be negative, enabling the reaction to proceed spontaneously to the right?

#Life Sciences

  1. Under standard conditions, enough energy is released to drive the reaction to the right.

  2. The reaction will not go to the right spontaneously under any conditions because the DG'° is positive.

  3. The reaction will proceed spontaneously to the right if there is a high concentration of products relative to the concentration of fructose 1,6-bisphosphate.

  4. The reaction will proceed spontaneously to the right if there is a high concentration of fructose 1,6-bisphosphate relative to the concentration of products.

More Questions
TLS Online TPP Program

#Question id: 39261

#Plant Biotechnology

Q.Assertion (A): Hybrids obtained from irradiated carrot and non-irradiated rice protoplast fusion resembled rice plants.
Reason (R): The non-irradiated parent usually contributes more intact genomic material.
TLS Online TPP Program

#Question id: 39262

#Plant Biotechnology

Q. Assertion: The fusion of B. napus (AACC) and B. nigra (BB) results in a hybrid with the genomic constitution AABBCC. 
Reason: This specific interspecific fusion was primarily conducted to transfer resistance against Phoma lingam (black-leg disease) to rapeseed.
 
TLS Online TPP Program

#Question id: 39263

#Plant Biotechnology

Q. Assertion: Somatic hybridization between non-flowering and male sterile dihaploid clones of potato can result in male fertile hybrids. 
Reason: Symmetric hybridization allows for the creation of superior hybrids and the generation of novel genetic material by bypassing traditional sexual reproduction barriers.
TLS Online TPP Program

#Question id: 39264

#Plant Biotechnology

Q. Assertion: Tobacco hybrids produced from N. rustica and N. tabacum may exhibit resistance to blue mould. 
Reason: Blue mould resistance was a primary trait present in both parent lines and was intentionally selected for during the initial fusion process.
TLS Online TPP Program

#Question id: 39265

#Plant Biotechnology

Q. Assertion: Symmetric hybrids are utilized to widen the genetic base of allopolyploid species.
 Reason: Producing synthetic lines of Brassica napus by fusing B. oleracea and B. campestris introduces desirable traits that might be missing in the current cultivated pool.
TLS Online TPP Program

#Question id: 39266

#Plant Biotechnology

Q. Assertion: Somatic hybrids of potato fused with S. brevidens are used in breeding programs to combat Potato Leaf Roll Virus (PLRV). 
Reason:S. brevidens is a wild relative of the potato that carries natural resistance to certain viral and bacterial diseases like Erwinia soft rot.