TLS Online TPP Program

#Question id: 5845


Which of the following statements is false?  In vitro, the strand-exchange reaction:

#Unit 8. Inheritance Biology
  1. can include formation of a Holliday intermediate.

  2. is accompanied by ATP hydrolysis.

  3. may involve transient formation of a three- or four-stranded DNA complex.

  4. requires DNA polymerase.

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TLS Online TPP Program

#Question id: 22955

#Unit 5. Developmental Biology

Based On ABC model during flower development, loss of class A activity results the formation of only stamen and carpel. Which of the flowering floral organs identity genes controls the class  A activity ?

TLS Online TPP Program

#Question id: 22956

#Unit 5. Developmental Biology

Individual and overlapping expression of homeotic genes in adjacent whorl of a flower determine the pattern of floral organ development. In an Arabidopsis mutant, floral organs are distributed as follows
WHORL 1 Sepal
WHORL 2 Petal
WHORL 3 Petal
WHORL 4 Sepal
Loss of function mutation in which one of the following genes would have caused the above pattern of floral organs development 

TLS Online TPP Program

#Question id: 22957

#Unit 5. Developmental Biology

floral organ development is controlled by overlapping expressions of A class , B class and C class genes in different whorls. In an Arabidopsis mutant, the floral whorls had following pattern:
Sepal àSepal àcarpel àcarpel 
Mutation in which one of the following class of gene causes above pattern.  

TLS Online TPP Program

#Question id: 22958

#Unit 5. Developmental Biology

Which of the following statement is correct regarding to the flower development in Arabidopsis?

TLS Online TPP Program

#Question id: 23243

#Unit 13. Methods in Biology

In Maxam gilbert DNA sequencing autoradiogram is used for band visualization. What modification leads to band visualization?

TLS Online TPP Program

#Question id: 23244

#Unit 13. Methods in Biology

At which position does this piperidine cleaves?