TLS Online TPP Program

#Question id: 32


 Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. This is an example of a(n):

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Dynamic steady state

  2. Equilibrium state

  3. Free-energy change

  4. Exergonic change

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TLS Online TPP Program

#Question id: 7006

#Unit 5. Developmental Biology

A cluster of genes that comprises one part of the Hox gene clusters (the HOM-C complex) in Drosophila, known as:

TLS Online TPP Program

#Question id: 4089

#Unit 3. Fundamental Processes

An investigator incubates an unprocessed RNA molecule containing an intron in an extract absent of any protein. Correct splicing of the RNA is observed, but only when guanosine is present. What can the investigator conclude about the RNA molecule?

a. It contains a ribozyme. 

b. Self-splicing has occurred.

c. It contains a group II intron.

d. It contains a group I intron.

TLS Online TPP Program

#Question id: 3410

#Unit 11. Evolution and Behavior

1200 Birds population are present around costal area with allelic frequency of M1 .60 and M2 .40. During rainy time 200 birds come from nearest forest which has .30 frequency of M1 and .70 of M2 allele.  What will be allelic frequency of M2 in their recipient population of costal area?

TLS Online TPP Program

#Question id: 1524

#Unit 4. Cell Communication and Cell Signaling

Tumor-suppressor genes generally encode proteins that in one way or another inhibit cell proliferation. Loss-of-function mutations in one or more of these proliferation inhibitory proteins contribute to the development of many cancers. Prominent among the classes of proteins encoded by tumor-suppressor genes are:

A. Intracellular proteins that regulate or inhibit entry into the cell cycle

B. Receptors or signal transducers for secreted hormones or developmental signals that inhibit cell proliferation

C. Checkpoint pathway proteins that arrest the cell cycle if DNA is damaged

D. Proteins that promote apoptosis

Following genes belongs to the above class-

i. p53

ii. Rb

iii.TGF- β

iv. Caspase 3 and 7

which of the following match is correct?

TLS Online TPP Program

#Question id: 31155

#Unit 7. System Physiology – Animal

Which of the following glial cells play a critical role in cerebrospinal fluid homeostasis, brain metabolism, and the clearance of waste from the brain?