TLS Online TPP Program

#Question id: 28458


In C. elegans LAG-2 protein and LIN-12 protein is homologous to which of the signaling pathway?

#Unit 5. Developmental Biology
  1. Delta and Notch
  2. EGF and EGF receptor
  3. Delta and Notch receptor
  4. cytokine and EGF receptor

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TLS Online TPP Program

#Question id: 7051

#Unit 5. Developmental Biology

Which of the following is not maternal dorsalizing factors in amphibia?

TLS Online TPP Program

#Question id: 72

#Unit 1. Molecules and their Interaction Relevant to Biology

For the reaction catalyzed by the enzyme hexokinase: Glucose + ATP → glucose 6-phosphate + ADP the equilibrium constant, Keq, is 7.8 × 102. In living E. coli cells, [ATP] = 5 mM, [ADP] = 0.5 mM, [glucose] = 2 mM, and [glucose 6-phosphate] = 1 mM. Which of the following conclusions made on the basis of the above calculations is incorrect?

TLS Online TPP Program

#Question id: 30074

#Unit 2. Cellular Organization

Following statements were made about transposons:
A. Transposons have inverted terminal repeats and their integration generates inverted repeats at the flanks of the target site in the host genome.
B. A composite transposon can transpose as a unit.
C. The transposition event may cause deletions or inversions or move a host sequence to a new location.
D. The transposition event may cause deletions or inversions but cannot move a host sequence to a new location.
E. Replicative transposition proceeds through cointegration.

Which one of the following represents the combination of the correct statements?

TLS Online TPP Program

#Question id: 636

#Unit 1. Molecules and their Interaction Relevant to Biology

DNA polymerase contains a lysine residue that is important for binding to DNA. Mutations were found that converted this lysine to either glutamate, glycine, valine, or arginine. Which mutations would be predicted to be the most and least harmful to the ability of the enzyme to bind DNA?

Most

Least

(A)

Valine

Aspartate

(B)

Glycine

Arginine

(C)

Arginine

Glycine

(D)

Glutamate

Arginine

TLS Online TPP Program

#Question id: 24550

#Unit 9. Diversity of Life Forms

Only four possible states of a particular site in a DNA sequence, which of the following statement is correct?