TLS Online TPP Program

#Question id: 20409


Introns may more freely accumulate point substitutions and other changes due to 

#Unit 3. Fundamental Processes
  1. very high elimination pressure
  2. very high positive selection pressure 
  3. very high negative selection pressure
  4. no selection pressures
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TLS Online TPP Program

#Question id: 7302

#Unit 5. Developmental Biology

Match the following level of microRNAs in Arabidopsis (Column II and III) with their Phases (Column I)

   Phases (Column I)

 microRNAs (Column II)

Level of microRNAs (Column III)

A. Juvenile vegetative phase

i. miR156

a. Low

B. Adult vegetative phase

ii. miR172

b. High

C. Reproductive phase

 

 

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 7303

#Unit 5. Developmental Biology

The ‘quartet model’ explains how the protein products of the ABCE-function genes might interact to control floral organ identity. Following statements are based on this model. Which one of them is incorrect?

TLS Online TPP Program

#Question id: 7304

#Unit 5. Developmental Biology

Which one of the following will be observed when auxin to cytokinin ratio is increased in the culture medium during organogenesis from tobacco pith callus?

TLS Online TPP Program

#Question id: 7305

#Unit 5. Developmental Biology

In plants, a growing mass of unorganized and undifferentiated cells that cover a wound; these cells can be induced to form a plant meristem and develop into shoots and/or roots called as

TLS Online TPP Program

#Question id: 7306

#Unit 5. Developmental Biology

A plant scientist was hired by a greenhouse operator to devise a way to force iris plants to bloom in the short days of winter. Iris normally blooms as a long-day (short-night) plant. Which of the following has the best chance of creating iris blooms in winter?

TLS Online TPP Program

#Question id: 7307

#Unit 5. Developmental Biology

Which of the following statements regarding flowering plants is correct?