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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: 23107

#Unit 2. Cellular Organization

Choose the correct statement
a.The 30-nm fiber is further folded, results in 10000-fold compaction in euchromatin in interphase chromatin and in mitotic chromosomes to achieve an overall 10,00- fold compaction in euchromatin.
b.This 30-nm fiber is further folded, results in 1000-fold compaction in euchromatin in interphase chromatin and in mitotic chromosomes to achieve an overall 10,000- fold compaction in euchromatin.
c.Heterochromatin generally maintains 10,000-fold compaction in both interphase and mitosis after 30 nm.
d.Heterochromatin generally maintains 10,00-fold compaction in interphase and 10,000 folds in  mitosis after 30 nm.
TLS Online TPP Program

#Question id: 23108

#Unit 2. Cellular Organization

Heterochromatin generally maintains compaction in both interphase and mitosis after 30 nm.
TLS Online TPP Program

#Question id: 23109

#Unit 2. Cellular Organization

What is the similarities between RNA polymerase and scaffolds 
TLS Online TPP Program

#Question id: 23110

#Unit 2. Cellular Organization

Individual nucleosomes can be obtained by treating chromatin with the endonuclease micrococcal nuclease (MNase), which cuts the DNA between nucleosomes, a region known as 
TLS Online TPP Program

#Question id: 23111

#Unit 2. Cellular Organization

Choose the correct option 
a. Individual nucleosomes can be obtained by treating chromatin with the endonuclease micrococcal nuclease (MNase), which cuts the DNA between nucleosomes, a region known as H2A-H2B dimer region. 
b. Individual nucleosomes can be obtained by treating chromatin with the endonuclease micrococcal nuclease (MNase), which cuts the DNA between nucleosomes, a region known as linker DNA.
c. Mononucleosomes typically have 200 bp DNA. End-trimming reduces the length of DNA first to 165 bp and then generates core particles with 146 bp.
d. Mononucleosomes typically have 200 bp DNA. End-trimming reduces the length of DNA first to 165 bp and then generates core particles with 200 bp.
TLS Online TPP Program

#Question id: 23112

#Unit 2. Cellular Organization

Chromatin on treatment with Mnase generates fragments, as the time and concentration of Mnase increase various fragments are observed choose the incorrect statement