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TLS Online TPP Program

#Question id: 10919

Both of these observations—________X__________and________Y__________—support the existence of mass flow in the sieve elements of the phloem.

#Unit 6. System Physiology – Plant
  1. X- retrieve any sugars lost to the apoplast by leakage, and  Y- perhaps to reload sugars at the termination of sieve tubes
  2. X-the lack of bidirectional transport in a single sieve element and,  Y- similar velocities for solutes and water
  3. X-positive pressure gradient and,   Y- turgor pressure higher in sieve elements of sources than to sink 
  4. X-the bidirectional transport in a single sieve element and,   Y- different velocities for solutes and water
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TLS Online TPP Program

#Question id: 23105

#Unit 2. Cellular Organization

What is 2nd level (making 30 nm) of compaction while making/packaging the nucleosome  
TLS Online TPP Program

#Question id: 23106

#Unit 2. Cellular Organization

Some of the events are mentioned below, Choose the incorrect statement, 
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