TLS Online TPP Program

#Question id: 1468


Why are BRCA1 and BRCA2 considered to be tumor-suppressor genes?

#Unit 4. Cell Communication and Cell Signaling
  1. Their normal products participate in repair of DNA damage.

  2. The mutant forms of either one of these prevent breast cancer.

  3. The normal genes make estrogen receptors.

  4. They block penetration of breast cells by chemical carcinogens.

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TLS Online TPP Program

#Question id: 29457

#Unit 6. System Physiology – Plant

Covalent conjugation of amino acids to IAA can also result in permanent inactivation (storage or degradation), here certain combination is given (∧ shows conjugation)
a. IAA ∧ myo-inositol/Gluc/Ala/Leu/Me ---Reversible (storage)
b. IAA ∧ myo-inositol/Gluc/Ala/Leu/Me ---irreversible (degradation)
c. IAA ∧ oxIAA/GH3-Asp-Glu/3-Methyleneoxidole ---Reversible (storage)
d. IAA ∧ oxIAA/ GH3-Asp-Glu/3-Methyleneoxidole---irreversible (degradation)

Which of the following is correctly paired

TLS Online TPP Program

#Question id: 29458

#Unit 6. System Physiology – Plant

Which of the following is an essential for AUXIN transport in cell called as chemiosmotic model of auxin transport

TLS Online TPP Program

#Question id: 29459

#Unit 6. System Physiology – Plant

Which of the following protein involved in nondirectional auxin movement in shoot and root tip

TLS Online TPP Program

#Question id: 29460

#Unit 6. System Physiology – Plant

Naturally occurring auxin transport inhibitors are___
a. 1-NOA (1-naphthoxyacetic acid)
b. Quercetin (flavonol)
c. Genistein
d. NPA and TIBA
Which of the following is correct

TLS Online TPP Program

#Question id: 29461

#Unit 6. System Physiology – Plant

Which of the following are involved in inhibiting auxin efflux
a. NPA
b. IBA
c. flavonol
d. Cytochalasin D
Which of the following is correct

TLS Online TPP Program

#Question id: 29462

#Unit 6. System Physiology – Plant

Auxin-induced proton extrusion performs
a. Acidification the cell wall 
b. Alkalisation of the call wall
c. Increases cell extension
d. Decrease in cell extension
Which of the following is correct