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TLS Online TPP Program

#Question id: 14809

Indicate which of the following statements regarding haptens and carriers are true. 

#Unit 4. Cell Communication and Cell Signaling
  1. Haptens are large protein molecules such as BSA. 
  2. When a hapten-carrier complex containing multiple hapten molecules is injected into an animal, most of the induced antibodies are specific for the hapten. 
  3. Carriers are needed only if one wants to elicit a cell-mediated response. 
  4. It is necessary to immunize with a hapten-carrier complex in order to obtain antibodies directed against the hapten.
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TLS Online TPP Program

#Question id: 12763

#Unit 10. Ecological Principles

The life history traits favoured by selection are most likely to vary with
TLS Online TPP Program

#Question id: 28680

#Unit 2. Cellular Organization

Mitotic spindle attach to chromosomes via specialized protein structures known as
TLS Online TPP Program

#Question id: 31359

#Unit 13. Methods in Biology

Which of the following microscopy uses photoswitchable fluorophores that can be switched between a "on" (fluorescent) and "off" (dark) state, allowing only a small subset of molecules to be illuminated at a time, enabling precise localization of each individual molecule.
TLS Online TPP Program

#Question id: 29102

#Unit 8. Inheritance Biology

In mice Igf2 gene which encodes a protein called insulin like growth factor II (Igf2). Offspring inherit one Igf2 allele from their mother and one from their father The paternal copy of Igf2 is actively expressed in the fetus, but the maternal copy is not expressed. which of the following is correct about this gene?

a) this is an example of genomic imprinting and showing maternal imprinted

b) this is an example of genomic imprinting and showing paternal imprinted

c) mechanism of imprinting is due to the addition of methyl (CH3) groups to DNA nucleotides

d) mechanism of imprinting is due to changing the nucleotide sequences
TLS Online TPP Program

#Question id: 12723

#Unit 6. System Physiology – Plant

GroEL, GroES is an example of the  prokaryotic cell, this HSP protein is belong to the which of the following HSP class?