Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 8653
TLS Online TPP Program

#Question id: 11871

The bells begin to toll together and they toll respectively at intervals of 6, 7, 8, 9 and 12 seconds. After how many seconds will they toll together again?

#General Aptitude
  1. 72 Seconds
  2. 612 Seconds
  3. 504 Seconds 
  4. 318 Seconds
More Questions
TLS Online TPP Program

#Question id: 23964

#Unit 8. Inheritance Biology

Match the following correct interpretation of deletion including;
I- Terminal deletion
II- Intercalary deletion
III- Microdeletion
a) deletion that occurs from the interior of a chromosome
b) deletion that incorporated into a non-homologous chromosome
c) deletion that occurs towards the end of a chromosome
d) small amount of deletion usually found in children with physical abnormalities
TLS Online TPP Program

#Question id: 7287

#Unit 5. Developmental Biology

Following statements are regarding to the the floral quartet model and the underlying ABCDE model of organ identity determination in Arabidopsis thaliana.

A. Five floral organ identities (sepals, petals, stamens, carpels, and ovules) are specified by the formation of floral organ-specific tetrameric complexes of MADS-domain transcription factors that bind to two nearby enhancer elements, forming a DNA loop in between.

B. A complex of two class A proteins (APETALA 1) and two class E proteins  (SEPALLATA) determines petal identity.

C. A complex of one class A protein, one class E protein, and one of each of the class B proteins (APETALA 3 and PISTILLATA) determines sepal identity.

D. A complex of one class E protein, two class B proteins, and one class C protein (AGAMOUS) determines stamen identity, while a complex of two class E proteins and two class C proteins determines carpel identity.D. A complex of one class E protein, two class B proteins, and one class C protein (AGAMOUS) determines stamen identity, while a complex of two class E proteins and two class C proteins determines carpel identity.

E. A complex of one class E protein, one class C protein, and one of each of the class D proteins (SHATTERPROOF and SEEDSTICK) controls ovule identity.

Which of the following combination are correct?
TLS Online TPP Program

#Question id: 27419

#Unit 1. Molecules and their Interaction Relevant to Biology

The distribution of lipids in the membranes of a typical cell Each membrane has its own characteristic composition, and the two monolayers of a given membrane may differ in composition hence choose which of the following is incorrect 
Note = OML = outer mono layer, IML = inner mono layer
TLS Online TPP Program

#Question id: 7301

#Unit 5. Developmental Biology

An Rajasthani hunter was worried about being attacked by grizzly tigers, so he left the lights in his cabin on all the time. Plants near the cabin flowered a month early. Which of the following best explains this?
TLS Online TPP Program

#Question id: 7310

#Unit 5. Developmental Biology

Which statement best describes the mechanism for circadian rhythm?