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TLS Online TPP Program

#Question id: 3426

Fitness of three different genotypes is given in population I and II, under natural selection which of the following statement are correct?

#Unit 11. Evolution and Behavior

  1. In population I selection against recessive allele A2 while population II selection against dominant allele A2

  2. In population I selection against dominant allele A1 while population II selection against recessive allele A1

  3. In population I selection against recessive allele A1 while population II selection against dominant allele A1

  4. In population I A1 allele increases while Population II A2 allele increases

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TLS Online TPP Program

#Question id: 4661

#Unit 3. Fundamental Processes

In bacteria two components regulatory systems contain a domain can have function such as controlling the direction in which the bacterium swims in response to a concentration gradient of nutrients is known as
TLS Online TPP Program

#Question id: 4660

#Unit 3. Fundamental Processes

Two-component system regulating response to low Gln,

a) Glutamine dissociates from the sensor domain in the NtrB protein, leading to activation of a histidine kinase transmitter domain in NtrB

b) glutamine binds to a sensor domain of NtrB, causing a conformational change in the protein that inhibits its histidine kinase activity, the regulatory domain of NtrC blocks its DNA-binding domain from binding the glnA enhancers.

c) Activated transmitter domain of NtrB that transfers the γ-phosphate of ATP to a histidine residue (H), this phosphohistidine then transfers the phosphate to an aspartic acid residue (D) in the NtrC protein

d) This causes a conformational change in NtrC that unmasks the NtrC DNA-binding domain so that it can bind to the glnA enhancers

Which of the following combination is correct?
TLS Online TPP Program

#Question id: 4659

#Unit 3. Fundamental Processes

Many bacterial responses are controlled by two component regulatory systems. What will happen at the high concentration of glutamine and at the low concentration of glutamine?

a) At high concentrations glutamine binds to a sensor domain of NtrB conformational change in the protein that inhibits its histidine kinase activity

b) NtrC phosphorylation takes place causes a conformational change in NtrC that unmasks the NtrC DNA-binding domain so that it can bind to the glnA enhancers

c) At the same time, the regulatory domain of NtrC blocks its DNA-binding domain from binding the glnA enhancers

d) At low concentrations of glutamine dissociates from the sensor domain in the NtrB protein, leading to activation of a histidine kinase transmitter domain

Which of the following given combination is correct?
TLS Online TPP Program

#Question id: 4561

#Unit 3. Fundamental Processes

Which factor recruits capping enzyme?
TLS Online TPP Program

#Question id: 4560

#Unit 3. Fundamental Processes

TFIIH general is a general transcription factor phosphorylates the CTD multiple times on heptapeptide sequence such as
TLS Online TPP Program

#Question id: 4559

#Unit 3. Fundamental Processes

The 5’Cap is added to the eukaryotic nascent RNAs shortly after