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TLS Online TPP Program

#Question id: 15228

Capillary electrophoresis (CE) is based on principle of 

#Unit 13. Methods in Biology
  1. Electroendosmosis
  2. Sieving effect
  3. Perforation
  4. Heat transfer 
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TLS Online TPP Program

#Question id: 3817

#Unit 3. Fundamental Processes

DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.

If the mechanism of DNA replication in this bacterium were dispersive, what results would be found when the double-stranded DNA was analyzed in a CsCl gradient after two generations in 15N-medium?
TLS Online TPP Program

#Question id: 12702

#Unit 8. Inheritance Biology

Some given characteristics features of Cytoplasmic inheritance, which of the following statements are not follow the inheritance pattern;
a) Cytoplasmic gene and their trait present in both male and female
b) Reciprocal cross results aren’t change
c) Exhibit extensive phenotypic variation
d) Reciprocal cross results are change
e) Mendel’s principle of segregation and independent assortment are follow
TLS Online TPP Program

#Question id: 10428

#Unit 6. System Physiology – Plant

Match the following column given fluence with its induce phytochrome responses;

            COLUMN A 

  COLUMN B

A) low-fluence responses (LFRs)

i) do not show Photoreversibility while Law of Reciprocity is followed

B)  high irradiance responses (HIRs)

ii) Shows the Photoreversibility and also the Law of Reciprocity is followed

C) Very low fluence response (VLFR)

iii) It will absorb red and blue light and responses is measuredly recepted by phytochrome A

 

iv) In dark-grown: far red, blue, UV-A recepted by Photoreceptor phyA and cryptochrome

 

v) ) It will absorb Red, far-red and responses is measurely recepted by phyB, phyD, phyE

Match the following combination with its correct responses;
TLS Online TPP Program

#Question id: 7135

#Unit 5. Developmental Biology

Recently, it was reported that adult, differentiated cells can be made to behave as pluripotent stem cells by the introduction of a few genes, one of which was Oct4. What was the rationale for this experiment?
TLS Online TPP Program

#Question id: 15526

#Unit 4. Cell Communication and Cell Signaling

If a thymocyte randomly generated a TCR with an affinity for MHC Class I, the TCR and CD8 would bind MHC Class I together, and generate a signal that specifically initiated a program that is 
a) silenced CD8 expression
b) silenced CD4 expression
c) induced expression of genes specific for helper T-cell lineage function
d) induced expression of genes specific for cytotoxic T-cell lineage function