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TLS Online TPP Program

#Question id: 4106

When bacteriophage lambda infects a sensitive bacterium, one of the first messenger RNA species synthesized is very short, beginning at a site P L and extending just through an adjacent gene N. After the appearance of the gene N protein, messages become much longer, still beginning at PL but extending far beyond gene N. The N gene encodes

#Unit 3. Fundamental Processes

  1. an antiterminator acting just beyond gene N

  2. a new sigma factor acting on a promoter beyond gene N

  3. an activator for a promoter beyond gene N

  4. an antirepressor that removes a protein repressor bound at gene

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TLS Online TPP Program

#Question id: 27067

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct statement regarding the stereochemistry of amino acid
1. 16 amino acid except (Thr, Ile, Cys, Gly) L Fischer projection is equal to S and D is equal to R configuration 
2. Thr, Ile is special case because of two chiral center exist in L – Ile/Thr – 2S,3R and D-Ile/Thr–2R,3S configuration  
3. Cys exiest in L- Cys – R & D- Cys – S configuration 
4. Gly is optically inactive 
TLS Online TPP Program

#Question id: 7281

#Unit 5. Developmental Biology

Evolutionary conservation of homeotic gene organization and transcriptional expression in fruit flies and mice is seen in the similarity between the Hom-C cluster on Drosophila chromosome 3 and the four Hox gene clusters in the mouse genome.

 

According to this figure, Which of the following statement is correct?
TLS Online TPP Program

#Question id: 7300

#Unit 5. Developmental Biology

Following genes regulate flowering, column I represents genes, column II represents transcription factor family and column III represents functions.

Column I

Column II

Column III

A. FLOWERING D (FD)

i. bZIP

a. Activates flowering

downstream of florigen

B. SUPPRESSOR OF

OVEREXPRESSION OF

CONSTANS1 (SOC1)

ii. MADS

b. Receptor for florigen

C. FLOWERING LOCUS C

 

c. Class E homeotic genes

D. SEPALLATA (SEP)

 

d. Floral repressor

 Which of the following is correct?
TLS Online TPP Program

#Question id: 10217

#Unit 6. System Physiology – Plant

Another effect that appears to be a major factor in the stability of the photosynthetic apparatus, which occurs when excess excitation arriving at the PSII reaction center leads to its inactivation and damage is known as
TLS Online TPP Program

#Question id: 2967

#Unit 2. Cellular Organization

G1 is associated with which of the following cellular events?