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TLS Online TPP Program

#Question id: 5300

What is metagenomics?

#Unit 11. Evolution and Behavior

  1. genomics as applied to a species that most typifies the average phenotype of its genus

  2. the sequencing of one or two representative genes from several species

  3. the sequencing of only the most highly conserved genes in a lineage

  4. sequencing DNA from a group of species from the same ecosystem

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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: 18378

#Unit 12. Applied Biology

Biostimulation is a process which involves the modification of the environment to
TLS Online TPP Program

#Question id: 11452

#Unit 7. System Physiology – Animal

A given photon of light may trigger an action potential with thousands of times more energy because the signal strength is amplified by ________.
TLS Online TPP Program

#Question id: 33984

#Unit 2. Cellular Organization

Choose correct combination of statements 

A. Each chromosome contains many fragments of very long duplex of DNA, folded into a fiber that runs continuously throughout the chromosome.
B. During interphase, euchromatin, which is slightly densely packed than mitotic chromosomes. 
C. Regions of heterochromatin remain densely packed throughout interphase.
D. Various heterochromatic regions, especially those associated with centromeres, aggregate into a densely staining chromocenter
TLS Online TPP Program

#Question id: 2222

#Unit 2. Cellular Organization

The solutions in the arms of a U-tube are separated at the bottom of the tube by a selectively permeable membrane. The membrane is permeable to sodium chloride but not to glucose. Side A is filled with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side B is filled with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same.

In the U-tube experiment illustrated above, which of the following statements correctly describes side B at equilibrium?