TLS Online TPP Program

#Question id: 181


Titration of valine by a strong base, for example NaOH, reveals two pK’s. The titration reaction occurring at pK2 (pK2 = 9.62) is:

#XL - T Zoology
  1. —COOH + OH-  -> —COO- + H2O.

  2. —COOH + —NH2 -> —COO- + —NH2+.

  3.  —COO- + —NH2+ -> —COOH + —NH2.

  4. —NH3+ + OH-  -> —NH2 + H2O.

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TLS Online TPP Program

#Question id: 7303

#XL - R Botany

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

#XL - R Botany

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

#XL - R Botany

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: 7314

#XL - R Botany

With reference to plant flowering pattern; match the terms of Column I with the most appropriate term of Column II. (Se-Sepal; Ca-Carpel; St-stamen; Pe-Petal)

s.no.

Homeotic mutants

(Column 1)

S. No

Flower patterning

(Column 2)

A.     

Apetala2 mutant

                    I.  

Ca-Ca-Ca-Ca

B.      

Agamous /Apetala3 mutant

                    II.    

Se-Pe-Pe-Se

C.      

Agamous mutant

               III. 

Se-Se-Se-Se

D.     

Apetala2/Apetala3 mutant

                IV.

Ca-St-St-Ca

 

TLS Online TPP Program

#Question id: 7451

#General Aptitude

At what time between 6 to 7 o’ clock minute and hour hand will opposite ?

TLS Online TPP Program

#Question id: 7452

#General Aptitude

What will be the angle between the hour and minute hands at 3 : 20 ?